CN109842314A - Drive control circuit and household appliance - Google Patents
Drive control circuit and household appliance Download PDFInfo
- Publication number
- CN109842314A CN109842314A CN201910290795.7A CN201910290795A CN109842314A CN 109842314 A CN109842314 A CN 109842314A CN 201910290795 A CN201910290795 A CN 201910290795A CN 109842314 A CN109842314 A CN 109842314A
- Authority
- CN
- China
- Prior art keywords
- capacitive element
- load
- control circuit
- power supply
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Inverter Devices (AREA)
Abstract
本发明提供了一种驱动控制电路和家电设备，其中，驱动控制电路包括：电压吸收补偿支路，与逆变器并联，所述电压吸收补偿支路包括串联的容性元件和开关器件，所述开关器件被配置为控制所述容性元件进行充电或放电，其中，所述容性元件放电对所述逆变器进行电压补偿，所述逆变器被配置为驱动负载运行。应用了本发明提供的技术方案，在电压较低时通过容性元件还实现了电压补偿，避免系统功率波动，从而解决了在输入的供电信号过低时引起的拍频噪音问题，兼具了降低负载电流峰值和电压补偿的两方面作用。
The present invention provides a drive control circuit and a household appliance, wherein the drive control circuit includes: a voltage absorption compensation branch, which is connected in parallel with an inverter, and the voltage absorption compensation branch includes a series-connected capacitive element and a switching device, so the The switching device is configured to control the capacitive element to charge or discharge, wherein the capacitive element discharges to voltage compensate the inverter, and the inverter is configured to drive a load to operate. By applying the technical solution provided by the present invention, voltage compensation is also realized through capacitive elements when the voltage is low, so as to avoid system power fluctuations, thereby solving the problem of beat frequency noise caused when the input power supply signal is too low, and has both the Reduce the two aspects of load current peak value and voltage compensation.
Description
Technical field
The present invention relates to Drive Control Technique fields, set in particular to a kind of drive control circuit and a kind of household electrical appliances
It is standby.
Background technique
In general, the power factor of passive PFC (Power Factor Correction, PFC) circuit
It is very low, and the capacitor very big using capacity is needed, cause passive PFC circuit cost very high.
And for the circuit methods of general no electrolytic capacitor, there is following disadvantage:
The first, DC bus-bar voltage fluctuation is big, causes load current fluctuations big, and load current peak is high, it is therefore desirable to needle
Overcurrent protection to power module setting high gauge, leads to cost increase；
The second, it is present in the periodic phenomena that the identical busbar voltage of supply frequency is insufficient, can not contribute, causes to clap
The problems such as frequency noise.
Therefore, a kind of drive control circuit that can solve above-mentioned technical problem is needed at present.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, the first aspect of the present invention proposes a kind of drive control circuit.
The second aspect of the present invention proposes a kind of household appliance.
In view of this, the first aspect of the present invention provides a kind of drive control circuit, comprising: voltage absorption compensation branch
Road, with inverter parallel, the voltage absorption compensation branch includes concatenated capacitive element and switching device, the switching device
It is configured as controlling the capacitive element progress charge or discharge, wherein the capacitive element electric discharge carries out the inverter
Voltage compensation, the inverter are configured as driving load running.
In the technical scheme, drive control circuit is provided with voltage new hand and compensates branch, including the capacitive being serially connected
Element and switching device, under the control of switching device, capacitive element charges to reduce the current amplitude or capacitive element of load
Electric discharge is to carry out voltage compensation to inverter.
Technical solution provided by the invention is applied, executes by setting switching device and capacitive element selection and absorbed electricity
Pressure carries out voltage compensation, if power supply signal is excessively high, capacitive element starts to absorb over-voltage signal and realizes charging, negative to reduce
Carry current peak.
If power supply signal is too low, capacitive element starts to discharge, and to realize voltage compensation, wherein capacitive element need not be selected
The very big capacitor of capacity can reduce the cost of voltage compensating circuit, while capacitive element absorbs over-voltage signal and over-current signal,
Voltage compensation is also achieved by capacitive element when voltage is lower, system power is avoided to fluctuate, to solve in input
Caused beat frequency noise problem when power supply signal is too low.
Specifically, it is the electrolytic capacitor of 10uF to 2000uF that capacitance range, which can be used, in capacitive element, without selecting capacitance
Bigger capacitor is, it can be achieved that preferable cost control, has had both the two aspect effects for reducing load current peak and voltage compensation.
In addition, the drive control circuit in above-mentioned technical proposal provided by the invention can also have following supplementary technology special
Sign:
In the above-mentioned technical solutions, further, the inverter access is described between high voltage bus and low-voltage bus bar
One end of switching device is connected to the high voltage bus, and one end of the capacitive element is connected to the low-voltage bus bar.
In the technical scheme, inverter access is between high voltage bus and low-voltage bus bar, by the direct current signal on bus
It is converted into the AC signal of driving load running.One end of switch element is connected to high voltage bus, and an end of capacitive element is connected to low
Bus is pressed, to realize the control to capacitive element charging, electric discharge.
In any of the above-described technical solution, further, drive control circuit further include: controller, the controller connect
It is connected to the switching device, to regulate and control the on state of the switching device；Wherein, if the power supply signal is greater than or equal to the
One power supply signal threshold value, then the controller triggers the switching device and is connected in the first pattern, to control the capacitive element
It charges, in addition, if the controller detects the power supply signal less than the second power supply signal threshold value, the controller
It triggers the switching device to be connected in a second mode, be discharged with controlling the capacitive element.
In the technical scheme, controller is according to the conduction mode of the size control switch device of power supply signal.Specifically,
When ac voltage signal is more than first voltage threshold value, illustrate that alternating voltage is higher, controller control switch device is at this time with the
One mode conducting, to reduce load current amplitude for capacitive element charging；When ac voltage signal is less than second voltage threshold value
When, illustrate that alternating voltage is too low at this time, controller control switch device is connected in a second mode at this time, so that capacitive element is put
Electricity carries out power compensation to inverter.
Wherein, the first power supply signal threshold value and the second power supply signal threshold value can take same numerical value or different numerical value, and the
One power supply signal threshold value and the second power supply signal threshold value are mainly determined by the power of the power and inverter that load.
Wherein, power supply signal can be the alternating voltage of input rectifying module, be also possible to the direct current of rectification module output
Voltage.
In the above-mentioned technical solutions, further, the switching device includes: power tube, is connected with the capacitive element,
The control terminal of the power tube is connected to the instruction output end of the controller, and described instruction output end is exported to the control terminal
Control instruction, the control instruction are configured as controlling the power tube on or off；Reverse-biased freewheeling diode, it is described reverse-biased
The both ends of freewheeling diode are respectively connected to drain electrode and the source electrode of the power tube, wherein described if the power tube is connected
Capacitive element is through the power tube to the load discharge, if the power tube ends, the capacitive element is through described reverse-biased
Freewheeling diode charges or is failure to actuate.
In the technical scheme, switching device includes power tube and reverse-biased freewheeling diode, power tube and capacitive element string
Connection, the instruction output end of controller are connected to the control terminal of power tube, and to send control instruction to power tube, power tube is according to control
System instruction change on state (on or off), the both ends of reverse-biased freewheeling diode respectively with the drain electrode of power tube and source electrode phase
Connection, when power tube conducting when, capacitive element through power tube to load discharge, to realize voltage compensation, when power tube cut-off when,
The voltage signal of input is capacitive element charging through reverse-biased freewheeling diode, to reduce load current peak.At load current peak
Value usually for normal water, without reducing load current peak, be failure to actuate by capacitive element.
Wherein, the capacitive element refers to that power supply signal is through reverse-biased two pole of afterflow through the reverse-biased freewheeling diode charging
Pipe charges to capacitive element, meanwhile, power supply signal is powered the load of operation, and capacitive element charging process is complete
Charging process, i.e., when capacitive element discharges, the discharge voltage of capacitive element is greater than the supply voltage on route, and then realizes electricity
Pressure compensation.
Specifically, power tube can it is preferable to use IGBT (Insulated Gate Bipolar Transistor, insulation
Grid bipolar junction transistor) type power tube, MOSFET (Metal-Oxide-Semiconductor Field- can also be selected
Effect Transistor, metal-oxide semiconductor (MOS) power field effect transistor), reverse-biased freewheeling diode can be independently arranged,
It can also be integrally disposed with IGBT or MOSFET.
In any of the above-described technical solution, further, drive control circuit further include: rectification module is set to the appearance
Between the input terminal and the harmonic filtration module of property element, the rectification module is configured as being converted to the power supply signal
Direct current signal, wherein the direct current signal is configured as charging to the capacitive element, and provides needed for the load running
Electricity, the inverter is configured as controlling the direct current signal and drives the load running.
In the technical scheme, rectification module is provided in drive control circuit, rectification module is connected to capacitive element
Between input terminal and filter module, the power supply signal of network system input enters rectification module after filter module filters out noise,
Rectification module rectifies power supply signal, and by the DC signal output obtained after rectification to capacitive element and loading section,
To charge to capacitive element, and provide operation required electricity to load.
In any of the above-described technical solution, further, if the load includes that single phase ac loads, the inverter
Including corresponding single-phase inversion circuit, the single-phase inversion circuit includes: two upper bridge arm power devices and two lower bridge arm function
Rate device accesses between the output end of the voltage absorption compensation branch and the input terminal of the load, if the load is wrapped
Three-phase alternating current load is included, then the inverter includes corresponding three-phase inverting circuit, and the three-phase inverting circuit includes: on three
Bridge arm power device and three lower bridge arm power devices access the output end in the voltage absorption compensation branch and the load
Input terminal between, wherein the upper bridge arm power device of phase and the lower bridge arm power of a corresponding phase
Devices in series connects, and the upper bridge arm power device and the lower bridge arm power device of same phase do not simultaneously turn on.
In the technical scheme, it if load includes single phase ac load, is provided in inverter corresponding single-phase
Inverter circuit, to export corresponding driving signal to single phase ac load.Specifically, single phase ac load can be single-phase electricity
Machine is also possible to single-phase inductive load.
Wherein, single-phase inversion circuit includes two upper bridge arm power devices and two lower bridge arm power devices, is connected to appearance
Between the deferent segment of property element and the input terminal of load.
If load includes three-phase alternating current load, corresponding three-phase inverting circuit is provided in inverter, with to three
Phase AC load exports corresponding driving signal.Specifically, three-phase alternating current load can be induction machine, and it is same to be also possible to permanent magnetism
Walk motor.
Wherein, three-phase inverting circuit includes three upper bridge arm power devices and three lower bridge arm power devices, is connected to appearance
Between the deferent segment of property element and the input terminal of load.The lower bridge of the upper corresponding phase of bridge arm power device of each phase
The series connection of arm power device, the upper bridge arm power device and lower bridge arm power device of same-phase will not simultaneously turn on, and intersect to three
The load of current load exports a phase driving signal, and the upper bridge arm power device and lower bridge arm power device of three phases are alternately led
Logical, the load loaded to three-phase alternating current exports three-phase driving signal.
In any of the above-described technical solution, further, between the source electrode and drain electrode of any upper bridge arm power device
It is connected to a reverse-biased freewheeling diode, is denoted as the reverse-biased freewheeling diode of bridge arm, the source electrode of any lower bridge arm power device
It is connected to a reverse-biased freewheeling diode between drain electrode, is denoted as the reverse-biased freewheeling diode of lower bridge arm.
In the technical scheme, between upper bridge arm power device and the source electrode and drain electrode of lower bridge arm power device between be connected to one
A reverse-biased freewheeling diode, the specially upper reverse-biased freewheeling diode of bridge arm and the reverse-biased freewheeling diode of lower bridge arm.
In any of the above-described technical solution, further, any upper bridge arm power device includes metal oxide half
Conductor field effect transistor and/or insulated gate bipolar transistor, any lower bridge arm power device includes metal oxide
Semiconductor field effect transistor and/or insulated gate bipolar transistor, wherein the collector of the insulated gate bipolar transistor
It is connected as the drain electrode, the emitter of the insulated gate bipolar transistor is connected as the source electrode.
In the technical scheme, upper bridge arm power device include Metal Oxide Semiconductor Field Effect Transistor (i.e.
MOSFET) and/or insulated gate bipolar transistor (i.e. IGBT), in the case where having used insulated gate bipolar transistor, absolutely
The collector of edge grid bipolar junction transistor is connected as the drain electrode, and emitter is connected as the source electrode.Lower bridge arm power device
Part includes Metal Oxide Semiconductor Field Effect Transistor (i.e. MOSFET) and/or insulated gate bipolar transistor (i.e. IGBT),
In the case where having used insulated gate bipolar transistor, the collector of insulated gate bipolar transistor connects as the drain electrode
It connects, emitter is connected as the source electrode.
In any of the above-described technical solution, further, the power tube includes metal oxide semiconductor field-effect crystalline substance
Body pipe and/or insulated gate bipolar transistor, wherein the grid of the Metal Oxide Semiconductor Field Effect Transistor is as institute
The instruction output end that control terminal is connected to the controller is stated, the base stage of the insulated gate bipolar transistor is as the control
End is connected to the instruction output end of the controller.
In the technical scheme, power tube include Metal Oxide Semiconductor Field Effect Transistor (i.e. MOSFET) and/or
Insulated gate bipolar transistor (i.e. IGBT), wherein the grid of MOSFET as control terminal, the instruction output end of controller with
The grid of MOSFET is connected, and as control terminal, the instruction output end of controller is connected the MOSFET of IGBT with the base stage of IGBT
It connects.
In any of the above-described technical solution, further, the load of the load includes blower and/or compressor.
In any of the above-described technical solution, further, the load of the load includes induction machine and/or permanent-magnet synchronous
Motor.
In any of the above-described technical solution, further, the capacitive element includes electrolytic capacitor and/or the capacitive
Element includes a capacity cell and/or the capacitive element includes the capacity cell of multiple series connection and/or parallel connection.
In the technical scheme, capacitive element use single electrolytic capacitor, also can be used it is multiple series connection and/or parallel connection
Electrolytic capacitor, to realize being freely arranged to the equivalent capacitance of capacitive element.
In any of the above-described technical solution, further, the capacitance value range of the capacitive element be 10uF~
2000uF。
Optionally, the capacitance of capacitive element is 82uF.
Optionally, the capacitance of capacitive element is 220uF.
Optionally, the capacitance of capacitive element is 470uF.
Optionally, the capacitance of capacitive element is 560uF.
Optionally, the capacitance of capacitive element is 680uF.
Optionally, the capacitance of capacitive element is 820uF.
In any of the above-described technical solution, further, the power supply source of the controller includes isolated power supply or bootstrapping electricity
Source, wherein the bootstrap power supply includes bootstrapping power supply circuit, bootstrap diode and bootstrap capacitor in the inverter, described
The anode of bootstrap diode is connected to the anode of the bootstrapping power supply circuit, the cathode of the bootstrap diode be connected to it is described from
The anode of capacitor is lifted, the anode of the bootstrap capacitor is connected to the feeder ear of the controller.
In the technical scheme, controller is provided with power supply, and specifically, power supply includes isolated power supply or bootstrapping
Power supply is connected to the feeder ear of controller by isolated power supply, provides electricity for controller when power supply is isolated power supply
Can, when power supply is bootstrap power supply, bootstrap power supply includes concatenated bootstrapping power supply circuit, isolated power supply or bootstrap power supply,
The cathode of bootstrapping power supply circuit is connected with the low-voltage bus bar in two buss lines, the anode and bootstrap diode of power supply circuit of booting
Anode be connected, while the cathode of bootstrap diode is connected with the anode of bootstrap capacitor, and the cathode of bootstrap capacitor is connected to
The feeder ear of controller, to provide electric energy for controller.
In any of the above-described technical solution, further, the voltage absorption compensation branch further include: with the capacitive member
The concatenated resistive element of part and/or inductance element, the resistive element are used to adjust the size of current for flowing through the capacitive element,
The inductance element is for filtering out the AC noise for flowing through the capacitive element.
In the technical scheme, resistive element and/or inductance element can access between high voltage bus and switching device,
It can also access between capacitive element and low-voltage bus bar, can also access between switching device and capacitive element.
In addition, resistive element includes the resistance of a resistance or multiple series connection and/or parallel connection, similarly, inductance element includes
One inductance or the inductance of multiple series connection and/or parallel connection.
The second aspect of the present invention provides a kind of household appliance, comprising: load；As described in any of the above-described technical solution
Drive control circuit, between network system and load, the drive control circuit is matched for drive control circuit access
Control network system is set to the load supplying.
In the technical scheme, household appliance includes the drive control circuit as described in any of the above-described technical solution, because
This, which includes whole beneficial effects of the drive control circuit as described in any of the above-described technical solution, again not
It repeats again.
In the above-mentioned technical solutions, further, the household appliance includes air conditioner, refrigerator, fan, smoke pumping
At least one of machine, dust catcher and host computer.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 shows the schematic diagram of drive control circuit according to an embodiment of the invention；
Fig. 2 shows the schematic diagrames that capacitive element in drive control circuit according to an embodiment of the invention charges；
Fig. 3 shows the schematic diagram that capacitive element discharges in drive control circuit according to an embodiment of the invention；
Fig. 4 shows the schematic diagram of drive control circuit according to another embodiment of the invention；
Fig. 5 shows the signal that capacitive element charges in drive control circuit according to another embodiment of the invention
Figure；
Fig. 6 shows the signal that capacitive element discharges in drive control circuit according to another embodiment of the invention
Figure；
Fig. 7 shows the schematic diagram of drive control circuit according to still another embodiment of the invention；
Fig. 8 shows the schematic diagram of the drive control circuit of still another embodiment in accordance with the present invention；
Fig. 9 shows the schematic diagram of the drive control circuit of still another embodiment in accordance with the present invention；
Figure 10 shows the schematic diagram of the drive control circuit of still another embodiment in accordance with the present invention；
Figure 11 shows the schematic diagram of the drive control circuit of still another embodiment in accordance with the present invention；
Figure 12 shows the schematic diagram of the drive control circuit of still another embodiment in accordance with the present invention；
Figure 13 shows the schematic diagram of the drive control circuit of still another embodiment in accordance with the present invention；
Figure 14 shows the schematic diagram of the drive control circuit of still another embodiment in accordance with the present invention；
Figure 15 shows the schematic diagram of the drive control circuit of still another embodiment in accordance with the present invention；
Figure 16 shows the schematic diagram of the drive control circuit of still another embodiment in accordance with the present invention；
Figure 17 shows the block diagrams of household appliance according to an embodiment of the invention.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
The drive control circuit described according to some embodiments of the invention and household appliance are described referring to Fig. 1 to Figure 16.
As shown in Figure 1, Figure 2 and Figure 3, in the embodiment of first aspect present invention, a kind of drive control circuit is provided
100, comprising: voltage absorption compensation branch, with inverter parallel, the voltage absorption compensation branch includes concatenated capacitive element
C1And switching device, the switching device are configured as controlling the capacitive element C1Carry out charge or discharge, wherein the appearance
Property element C1Electric discharge carries out voltage compensation to the inverter, and the inverter is configured as driving load running.
In this embodiment, drive control circuit 100 is provided with voltage new hand and compensates branch, including the capacitive being serially connected
Element C1And switching device, under the control of switching device, capacitive element C1It charges to reduce the current amplitude or capacitive of load
Element C1Electric discharge is to carry out voltage compensation to inverter.Specifically, such as capacitive element C1Current direction when charging as shown in Fig. 2, with
Make capacitive element C1Current direction is as shown in Figure 3 when electric discharge.
Above-described embodiment provided by the invention passes through setting switching device and capacitive element C1Selection, which executes, absorbs overvoltage
Or carry out voltage compensation, if power supply signal is excessively high, capacitive element C1Start to absorb over-voltage signal and realizes charging, it is negative to reduce
Carry current peak.
If power supply signal is too low, capacitive element C1Start to discharge, to realize voltage compensation, wherein capacitive element C1It need not
The capacitor for selecting capacity very big, can reduce the cost of voltage compensating circuit, while capacitive element C1Absorb over-voltage signal and mistake
Signal is flowed, passes through capacitive element C when voltage is lower1Voltage compensation is also achieved, system power is avoided to fluctuate, to solve
The caused beat frequency noise problem when the power supply signal of input is too low.
Specifically, capacitive element C1It is the electrolytic capacitor of 10uF to 2000uF that capacitance range, which can be used, is held without selecting
It is worth bigger capacitor, it can be achieved that preferable cost control, has had both the two aspect works for reducing load current peak and voltage compensation
With.
In one embodiment of the invention, further, inverter access in high voltage bus and low-voltage bus bar it
Between, one end of the switching device is connected to the high voltage bus, the capacitive element C1To be connected to the low pressure female for one end
Line.
In this embodiment, inverter access turns the direct current signal on bus between high voltage bus and low-voltage bus bar
Turn to the AC signal of driving load running.One end of switch element is connected to high voltage bus, capacitive element C1An end be connected to it is low
Bus is pressed, to realize to capacitive element C1Charging, the control discharged.
In one embodiment of the invention, further, as shown in Figure 1, Figure 2 and Figure 3, drive control circuit 100 is gone back
It include: controller M, the controller M is connected to the switching device, to regulate and control the on state of the switching device；Wherein,
If the power supply signal is greater than or equal to the first power supply signal threshold value, the controller M triggers the switching device with first
Mode conducting, to control the capacitive element C1It charges, in addition, if the controller M detects that the power supply signal is small
In the second power supply signal threshold value, then the controller M triggers the switching device and is connected in a second mode, to control the capacitive
Element C1It discharges.
In this embodiment, controller M is according to the conduction mode of the size control switch device of power supply signal.Specifically,
When ac voltage signal is more than first voltage threshold value, illustrate that alternating voltage is higher, controller M control switch device is at this time with the
One mode conducting, for capacitive element C1Charging reduces load current amplitude；When ac voltage signal is less than second voltage threshold value
When, illustrate that alternating voltage is too low at this time, controller M control switch device is connected in a second mode at this time, so that capacitive element C1
Electric discharge carries out power compensation to inverter.
Wherein, power supply signal can be the alternating voltage of input rectifying module, be also possible to the direct current of rectification module output
Voltage.
In one embodiment of the invention, further, as shown in Figure 1, Figure 2 and Figure 3, the switching device includes:
Power tube Q, with the capacitive element C1Series connection, the control terminal of the power tube Q are connected to the instruction output of the controller M
End, described instruction output end export control instruction to the control terminal, and the control instruction is configured as controlling the power tube Q
On or off；Reverse-biased sustained diode1, the reverse-biased sustained diode1Both ends be respectively connected to the power tube Q's
Drain electrode and source electrode, wherein if the power tube Q is connected, the capacitive element C1It is put through the power tube Q to the load
Electricity, if the power tube Q ends, the capacitive element C1Through the reverse-biased sustained diode1It charges or is failure to actuate.
In this embodiment, switching device includes power tube Q and reverse-biased sustained diode1, power tube Q and capacitive element C1
Series connection, the instruction output end of controller M are connected to the control terminal of power tube Q, to send control instruction, power tube Q to power tube Q
Change on state (on or off) according to control instruction, reverse-biased sustained diode1The both ends leakage with power tube Q respectively
Pole is connected with source electrode, when power tube Q conducting, capacitive element C1Through power tube Q to load discharge, to realize voltage compensation,
When power tube Q cut-off, the voltage signal of input is through reverse-biased sustained diode1For capacitive element C1Charging, to reduce load electricity
Stream peak value.Load current peak be normal water usually, without reducing load current peak, capacitive element C1It is failure to actuate.
Wherein, the capacitive element C1Through the reverse-biased sustained diode1Charging refers to that power supply signal is through reverse-biased afterflow two
Pole pipe D1To capacitive element C1It charges, meanwhile, power supply signal is powered the load of operation, capacitive element C1It charged
Journey is complete charging process, i.e. capacitive element C1When electric discharge, capacitive element C1Discharge voltage be greater than route on power supply electricity
Pressure, and then realize voltage compensation.
Specifically, power tube Q can it is preferable to use IGBT (Insulated Gate Bipolar Transistor, insulation
Grid bipolar junction transistor) type power tube Q, MOSFET (Metal-O can also be selected1ide-Semiconductor Field-
Effect Transistor, metal-oxide semiconductor (MOS) power field effect transistor), reverse-biased sustained diode1It can independently set
It sets, it can also be integrally disposed with IGBT or MOSFET.
In one embodiment of the invention, further, as shown in Figure 1, Figure 2 and Figure 3, drive control circuit 100 is gone back
Include: rectification module, is set to the capacitive element C1Input terminal and the harmonic filtration module between, the rectification module quilt
It is configured to the power supply signal being converted to direct current signal, wherein the direct current signal is configured as to the capacitive element C1
Electricity needed for charging, and the offer load running, the inverter are configured as controlling direct current signal driving institute
State load running.
In this embodiment, rectification module is provided in drive control circuit 100, rectification module is connected to capacitive element C1
Input terminal and filter module between, network system input power supply signal after filter module filters out noise enter rectification mould
Block, rectification module rectify power supply signal, and by the DC signal output obtained after rectification to capacitive element C1And load
Part, with to capacitive element C1Charging, and provide operation required electricity to load.
In one embodiment of the invention, further, shown in as shown in Figure 1, Figure 2, Fig. 3, Fig. 4 and Fig. 5, if the load
It is loaded including single phase ac, then the inverter includes corresponding single-phase inversion circuit, and the single-phase inversion circuit includes: two
Upper bridge arm power device and two lower bridge arm power devices, the output end accessed in the voltage absorption compensation branch are born with described
Between the input terminal of load, if the load includes that three-phase alternating current loads, the inverter includes corresponding three-phase inverting circuit,
The three-phase inverting circuit includes: three upper bridge arm power devices and three lower bridge arm power devices, and access is inhaled in the voltage
Receive compensation branch output end and the load input terminal between, wherein the upper bridge arm power device of a phase with
The lower bridge arm power device series connection of one corresponding phase connects, the upper bridge arm power device of same phase and it is described under
Bridge arm power device does not simultaneously turn on.
In this embodiment, it if load includes single phase ac load, is provided in inverter corresponding single-phase inverse
Power transformation road, to export corresponding driving signal to single phase ac load.Specifically, single phase ac load can be monophase machine,
It is also possible to single-phase inductive load.
Wherein, single-phase inversion circuit includes two upper bridge arm power devices and two lower bridge arm power devices, is connected to appearance
Property element C1Deferent segment and load input terminal between.
Specifically, when power supply signal is more than the first power supply signal threshold value, illustrate that power supply signal is higher, at this time such as Fig. 5 institute
Show, controller M control switch device is connected in the first pattern, for capacitive element C1Charging, when power supply signal is supplied less than second
When electric signal threshold value, illustrate that power supply signal is too low at this time, at this time as shown in fig. 6, controller M control switch device in a second mode
Conducting, so that capacitive element C1Electric discharge carries out voltage compensation for single phase ac load.
If load includes three-phase alternating current load, corresponding three-phase inverting circuit is provided in inverter, with to three
Phase AC load exports corresponding driving signal.Specifically, three-phase alternating current load can be induction machine, and it is same to be also possible to permanent magnetism
Walk motor.
Wherein, three-phase inverting circuit includes three upper bridge arm power devices and three lower bridge arm power devices, is connected to appearance
Property element C1Deferent segment and load input terminal between.Under the upper corresponding phase of bridge arm power device of each phase
The series connection of bridge arm power device, the upper bridge arm power device and lower bridge arm power device of same-phase will not simultaneously turn on, and to three-phase
The load of AC load exports a phase driving signal, and the upper bridge arm power device and lower bridge arm power device of three phases are alternately led
Logical, the load loaded to three-phase alternating current exports three-phase driving signal.
In one embodiment of the invention, further, as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, it is any it is described on
It is connected to a reverse-biased freewheeling diode between the source electrode and drain electrode of bridge arm power device, is denoted as the reverse-biased freewheeling diode of bridge arm,
It is connected to a reverse-biased freewheeling diode between the source electrode and drain electrode of any lower bridge arm power device, it is reverse-biased continuous to be denoted as lower bridge arm
Flow diode.
In this embodiment, between upper bridge arm power device and the source electrode and drain electrode of lower bridge arm power device between be connected to one
Reverse-biased freewheeling diode, the specially upper reverse-biased freewheeling diode of bridge arm and the reverse-biased freewheeling diode of lower bridge arm.
In one embodiment of the invention, further, any upper bridge arm power device includes metal oxide
Semiconductor field effect transistor and/or insulated gate bipolar transistor, any lower bridge arm power device include metal oxidation
Object semiconductor field effect transistor and/or insulated gate bipolar transistor, wherein the current collection of the insulated gate bipolar transistor
Pole is connected as the drain electrode, and the emitter of the insulated gate bipolar transistor is connected as the source electrode.
In this embodiment, upper bridge arm power device includes Metal Oxide Semiconductor Field Effect Transistor (i.e. MOSFET)
And/or insulated gate bipolar transistor (i.e. IGBT), in the case where having used insulated gate bipolar transistor, insulated gate bipolar
The collector of transistor npn npn is connected as the drain electrode, and emitter is connected as the source electrode.Lower bridge arm power device includes gold
Belong to oxide semiconductor field effect transistor (i.e. MOSFET) and/or insulated gate bipolar transistor (i.e. IGBT), is using
In the case where insulated gate bipolar transistor, the collector of insulated gate bipolar transistor is connected as the drain electrode, emitter
It is connected as the source electrode.
In one embodiment of the invention, further, the power tube Q includes metal oxide semiconductor field-effect
Transistor and/or insulated gate bipolar transistor, wherein the grid conduct of the Metal Oxide Semiconductor Field Effect Transistor
The control terminal is connected to the instruction output end of the controller M, described in the base stage of the insulated gate bipolar transistor is used as
Control terminal is connected to the instruction output end of the controller M.
In this embodiment, power tube Q include Metal Oxide Semiconductor Field Effect Transistor (i.e. MOSFET) and/or absolutely
Edge grid bipolar junction transistor (i.e. IGBT), wherein the grid of MOSFET as control terminal, the instruction output end of controller M with
The grid of MOSFET is connected, and as control terminal, the instruction output end of controller M is connected the MOSFET of IGBT with the base stage of IGBT
It connects.
In one embodiment of the invention, further, as shown in Figure 4, Figure 5 and Figure 6, the driving of single phase ac load
Control circuit 100 includes rectification circuit, power switch tube, power diode, electrolytic capacitor, single-phase inversion circuit and blow-up
Current load.
DC voltage is converted to after the rectified circuit of single phase power supply signal source, power switch tube is in parallel with power diode,
The emitter (or source electrode) of power switch tube, the cathode of power diode are connect with DC voltage anode, power switch tube
Collector (or drain electrode), the positive of power diode connect with electrolytic capacitor anode, and electrolytic capacitor cathode and DC voltage are negative
End connection, DC voltage are powered to single-phase inversion circuit, driving single phase ac load.
Optionally, single-phase inversion circuit can be made of 4 IGBT or be made of 4 MOSFET, while have instead simultaneously
Join freewheeling diode.
Optionally, single phase ac load can be monophase machine, be also possible to single-phase inductive load.
In one embodiment of the invention, further, the load of the load includes blower and/or compressor.
In one embodiment of the invention, further, the load of the load includes that induction machine and/or permanent magnetism are same
Walk motor.
In one embodiment of the invention, further, the capacitive element C1Including electrolytic capacitor and/or described
Capacitive element C1Including a capacity cell and/or the capacitive element C1Capacity cell including multiple series connection and/or parallel connection.
In this embodiment, capacitive element C1Using single electrolytic capacitor, also can be used it is multiple series connection and/or parallel connection
Electrolytic capacitor, to realize to capacitive element C1Equivalent capacitance is freely arranged.
In one embodiment of the invention, further, the capacitive element C1Capacitance value range be 10uF~
2000uF。
Optionally, capacitive element C1Capacitance be 82uF.
Optionally, capacitive element C1Capacitance be 220uF.
Optionally, capacitive element C1Capacitance be 470uF.
Optionally, capacitive element C1Capacitance be 560uF.
Optionally, capacitive element C1Capacitance be 680uF.
Optionally, capacitive element C1Capacitance be 820uF.
In one embodiment of the invention, further, as shown in Fig. 7, Fig. 8, Fig. 9, Figure 10 and Figure 11, the control
The power supply source of device M includes isolated power supply or bootstrap power supply, wherein the bootstrap power supply includes the bootstrapping power supply in the inverter
Circuit DC, bootstrap diode and bootstrap capacitor, the anode of the bootstrap diode are connected to the anode of the bootstrapping power supply circuit,
The cathode of the bootstrap diode is connected to the anode of the bootstrap capacitor, and the anode of the bootstrap capacitor is connected to the control
The feeder ear of device M.
In this embodiment, controller M is provided with power supply, and specifically, power supply includes isolated power supply or bootstrapping
Power supply is connected to the feeder ear of controller M by isolated power supply, provides electricity for controller M when power supply is isolated power supply
Can, when power supply is bootstrap power supply, bootstrap power supply includes concatenated bootstrapping power supply circuit DC, bootstrap diode D2And bootstrapping
Capacitor C2, bootstrapping power supply circuit DC cathode be connected with the low-voltage bus bar in two buss lines, power supply circuit of booting anode with
Bootstrap diode D2Anode be connected, while bootstrap diode D2Cathode and bootstrap capacitor C2Anode be connected, bootstrapping electricity
Hold C2Cathode be connected to the feeder ear of controller M, to provide electric energy for controller M.
Optionally, it as shown in Fig. 7, Fig. 8, Fig. 9 and Figure 10, loads as threephase load, switching power supply includes controller M
And power supply, wherein power supply is bootstrap power supply.
Wherein, optionally, as shown in figure 8, bootstrap diode D2It is set as one.
Wherein, optionally, as shown in figure 9, bootstrap diode D2It is set as two.
Wherein, optionally, as shown in Figure 10, bootstrap diode D2It is set as three.
Multiple bootstrap diode D2The reliability of drive control circuit can be improved.
Optionally, as seen in figs. 7 and 11, it loads as threephase load, switching power supply includes controller M and power supply electricity
Source, wherein power supply is isolated power supply.
Optionally, as shown in Figure 12, Figure 13 and Figure 14, load as single-phase load, switching power supply include controller M and
Power supply, wherein power supply is bootstrap power supply.
Wherein, optionally, as shown in figure 13, bootstrap diode D2It is set as one.
Wherein, optionally, as shown in figure 14, bootstrap diode D2It is set as two.
Two bootstrap diode D2The reliability of drive control circuit can be improved.
Optionally, it as shown in Figure 12 and Figure 15, loads as single-phase load, switching power supply includes controller M and power supply
Power supply, wherein power supply is bootstrap power supply.
As shown in figure 16, in the technical scheme, resistive element and/or inductance component L0Can access in high voltage bus with
Between switching device, it can also access in capacitive element C1Between low-voltage bus bar, it can also access in switching device and capacitive
Element C1Between.
In any of the above-described technical solution, further, resistive element is including a resistance or multiple series connection and/or simultaneously
The resistance of connection, similarly, inductance component L0Inductance including an inductance or multiple series connection and/or parallel connection.
As shown in figure 17, in the embodiment of second aspect of the present invention, a kind of household appliance 300 is provided, comprising: load
200；The drive control circuit 100 as described in above-mentioned any embodiment, the access of drive control circuit 100 is in network system
Between load, the drive control circuit 100 is configured as control network system to 200 power supply of load.
In this embodiment, household appliance includes the drive control circuit 100 as described in above-mentioned any embodiment, because
This, which includes whole beneficial effects of the drive control circuit 100 as described in above-mentioned any embodiment, again not
It repeats again.
In one embodiment of the invention, further, the household appliance includes air conditioner, refrigerator, fan, pumping
At least one of kitchen ventilator, dust catcher and host computer.
In description of the invention, term " multiple " then refers to two or more, unless otherwise restricted clearly, term
The orientation or positional relationship of the instructions such as "upper", "lower" is to be merely for convenience of retouching based on orientation or positional relationship described in attached drawing
It states the present invention and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention；Term " connection ", " installation ", " fixation " etc. should all
It is interpreted broadly, for example, " connection " may be fixed connection or may be dismantle connection, or integral connection；It can be straight
Connect it is connected, can also be indirectly connected through an intermediary.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the present invention, the description meaning of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Refer to that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present invention, schematic expression of the above terms are not necessarily referring to identical embodiment or example.And
And the particular features, structures, materials, or characteristics of description can be in any one or more of the embodiments or examples with suitable
Mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (17)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290795.7A CN109842314B (en) | 2019-04-11 | 2019-04-11 | Drive control circuits and home appliances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290795.7A CN109842314B (en) | 2019-04-11 | 2019-04-11 | Drive control circuits and home appliances |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109842314A true CN109842314A (en) | 2019-06-04 |
| CN109842314B CN109842314B (en) | 2025-01-14 |
Family
ID=66887114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910290795.7A Active CN109842314B (en) | 2019-04-11 | 2019-04-11 | Drive control circuits and home appliances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109842314B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111313673A (en) * | 2020-03-25 | 2020-06-19 | 广州华凌制冷设备有限公司 | Drive circuit and air conditioner |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020075702A1 (en) * | 2000-12-19 | 2002-06-20 | Seiki Igarashi | Electric power conversion apparatus |
| JP2003348880A (en) * | 2002-05-24 | 2003-12-05 | Fujitsu General Ltd | Method and apparatus for controlling motor |
| CN1913279A (en) * | 2006-08-31 | 2007-02-14 | 上海交通大学 | Series composation step-up single phase power factor correction circuit |
| CN103312144A (en) * | 2013-07-03 | 2013-09-18 | 上海路千电子科技有限公司 | Active-control valley fill circuit and control method thereof |
| CN103368442A (en) * | 2013-07-16 | 2013-10-23 | 上海煦达新能源科技有限公司 | Grid-connected inverter |
| CN104662788A (en) * | 2012-09-27 | 2015-05-27 | 大金工业株式会社 | Direct AC power conversion device |
| CN209497400U (en) * | 2019-04-11 | 2019-10-15 | 广东美的制冷设备有限公司 | Drive control circuit and household appliance |
-
2019
- 2019-04-11 CN CN201910290795.7A patent/CN109842314B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020075702A1 (en) * | 2000-12-19 | 2002-06-20 | Seiki Igarashi | Electric power conversion apparatus |
| JP2003348880A (en) * | 2002-05-24 | 2003-12-05 | Fujitsu General Ltd | Method and apparatus for controlling motor |
| CN1913279A (en) * | 2006-08-31 | 2007-02-14 | 上海交通大学 | Series composation step-up single phase power factor correction circuit |
| CN104662788A (en) * | 2012-09-27 | 2015-05-27 | 大金工业株式会社 | Direct AC power conversion device |
| CN103312144A (en) * | 2013-07-03 | 2013-09-18 | 上海路千电子科技有限公司 | Active-control valley fill circuit and control method thereof |
| CN103368442A (en) * | 2013-07-16 | 2013-10-23 | 上海煦达新能源科技有限公司 | Grid-connected inverter |
| CN209497400U (en) * | 2019-04-11 | 2019-10-15 | 广东美的制冷设备有限公司 | Drive control circuit and household appliance |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111313673A (en) * | 2020-03-25 | 2020-06-19 | 广州华凌制冷设备有限公司 | Drive circuit and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109842314B (en) | 2025-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109889073B (en) | Drive control circuit and household electrical appliance | |
| CN107086770B (en) | PFC circuit and variable frequency air conditioner | |
| US8680820B2 (en) | PFC booster circuit | |
| CN107276388B (en) | PFC circuit and variable frequency air conditioner | |
| CN109889075B (en) | Drive control circuits and home appliances | |
| CN108736702A (en) | Totem non-bridge PFC circuits, power supply change-over device and air conditioner | |
| CN104113262B (en) | A kind of convertible frequency air-conditioner and its electric machine control system based on Z source converters | |
| CN101073197A (en) | Multi-phase current supplying circuit, driving apparatus, compressor, and air conditioner | |
| WO2022027892A1 (en) | Drive apparatus, control method, electrical device and storage medium | |
| CN202231632U (en) | Single-phase non-isolated form low common mode current photovoltaic grid connected inverter | |
| CN104110778B (en) | Variable-frequency air conditioner based on Z source inverter | |
| CN109889074A (en) | Drive control circuit and household appliance | |
| CN110299824A (en) | Drive control circuit and household appliance | |
| WO2013159539A1 (en) | Circuit and control method thereof | |
| CN110022055B (en) | Operation control method, device, circuit, household appliance and computer storage medium | |
| CN103973134A (en) | Direct-current power device and PWM (pulse width modulation) pulse control method for improving power factor thereof | |
| CN109889072A (en) | Drive control circuit and household appliance | |
| CN209497400U (en) | Drive control circuit and household appliance | |
| CN109842314A (en) | Drive control circuit and household appliance | |
| CN209497401U (en) | Drive control circuit and household appliance | |
| CN209497399U (en) | Drive control circuit and household appliance | |
| CN203135735U (en) | Continuous current plant | |
| CN110224584A (en) | Household appliance and its passive power factor correcting circuit | |
| CN209748405U (en) | Household electrical appliance and passive power factor correction circuit thereof | |
| CN109889031A (en) | Progress control method, device, circuit, household appliance and computer storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |