CN103227563A - Intelligent digital control switch power supply - Google Patents
Intelligent digital control switch power supply Download PDFInfo
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- CN103227563A CN103227563A CN2013101268732A CN201310126873A CN103227563A CN 103227563 A CN103227563 A CN 103227563A CN 2013101268732 A CN2013101268732 A CN 2013101268732A CN 201310126873 A CN201310126873 A CN 201310126873A CN 103227563 A CN103227563 A CN 103227563A
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- 238000001914 filtration Methods 0.000 claims abstract description 25
- 238000012937 correction Methods 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 5
- 239000003990 capacitor Substances 0.000 claims description 18
- 239000004020 conductor Substances 0.000 claims description 10
- 238000002955 isolation Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The invention discloses an intelligent digital control switch power supply which comprises an MCU (micro controller unit) with a software programming function, as well as a first filtration protection module, a PFC (power factor correction) module, a power output module, a second filtration protection module and a voltage/current acquisition module that are connected with one another sequentially, wherein the first filtration protection module, the PFC module, the power output module, the second filtration protection module and the voltage/current acquisition module are connected with the MCU; and an I/O (input/output) communication port capable of being communicated with the outside is formed in the MCU. Therefore, the switch power supply takes the MCU with the software programming function as a control core, and replaces the original logic IC (integrated circuit) to control PFC with a digital control mode; a system is simulated into a resistive load; the MCU drives two groups of power switch modules simultaneously; the relationship between the PFC module and the power output module is balanced intelligently; and a high-PFC, high-efficiency and micro-power standby level is achieved.
Description
Technical field
The present invention relates to the field of switch power technology, refer in particular to a kind of intelligent numerical control Switching Power Supply.
Background technology
Switching Power Supply is to utilize modern power electronics technology, and the time ratio that the control switch pipe turns on and off is kept a kind of power supply of regulated output voltage, and Switching Power Supply generally is made of pulse width modulation (PWM) control IC and MOSFET.Along with the development and the innovation of power electronic technology, make switch power technology also in innovation constantly.At present, Switching Power Supply is the indispensable a kind of power mode of current electronics and information industry develop rapidly with small-sized, light weight and high-efficiency characteristics nearly all electronic equipment that is widely used.
Yet there are many shortcomings in this traditional employing logic IC device to the Switching Power Supply that PFC (power factor (PF)) proofreaies and correct: at first, circuit devcie is many during logic IC design, and the circuit complexity causes the production cost height; Moreover electronic device has too much also increased the safety issue of using and the overall volume that makes Switching Power Supply becomes big problem; Also have, this conventional switch power supply can not autobalance be exported PFC (power factor (PF)), uses and has brought inconvenience.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its main purpose provides a kind of intelligent numerical control Switching Power Supply, control the relation of balanced power factor correcting and power output intelligently with digital control scheme, so that switch power supply system is modeled to resistive load, obtain higher power factor.
For achieving the above object, the present invention adopts following technical scheme:
A kind of intelligent numerical control Switching Power Supply; comprise MCU microcontroller that contains software programming and the first filtering protection module that is connected successively, PFC correction module, power output module, the second filtering protection module, voltage/current acquisition module; this first filtering protection module, PFC correction module, power output module, the second filtering protection module, voltage/current acquisition module all are connected in the MCU microcontroller, and also are provided with the I/O PORT COM that can realize with external communication on this MCU microcontroller.
Preferably, described I/O PORT COM is cable port or radio port.
Preferably, described I/O PORT COM is wifi port, BT port, IR port or mechanical type port.
Preferably, between described MCU microcontroller and the PFC correction module, be connected with a switch module respectively between described MCU microcontroller and the power output module.
Preferably, described switch module is the Mosfet change over switch.
Preferably, described PFC correction module comprises bridge circuit BD, voltage lifting PFC circuit and voltage collection circuit, this voltage lifting PFC circuit comprises inductance L and diode D, this voltage collection circuit comprises capacitor C and resistance R 1, R2, the anode of this bridge circuit BD is by a positive wire series inductance L and diode D, the negative terminal of bridge circuit BD is connected on the cathode conductor, this just, the node 1 of cathode conductor, connect a Mosfet change over switch between 2, the control end of this Mosfet change over switch is connected on the MCU microcontroller, this just, the node 3 of cathode conductor, connect capacitor C between 4, just, the node 5 of cathode conductor, series resistor R1 between 6, R2, this resistance R 1, be connected on the MCU microcontroller by lead on the node 7 between the R2.
Preferably, described power output module comprises isolated form transformer T, diode D and capacitor C, ground connection behind the once end connection Mosfet change over switch of this isolated form transformer T, the control end of this Mosfet change over switch is connected on the MCU microcontroller, the secondary terminals of this isolated form transformer T connects diode D, and capacitor C is connected between the circuit node 8,9.
Preferably, described power output module comprises diode D, non-isolation type transformer T and capacitor C, this diode D and between the node 10,11 of circuit, this non-isolation type transformer T goes here and there between circuit node 11,13, this capacitor C connects and between circuit node 12,13, be connected with the Mosfet change over switch on circuit node 11, this Mosfet change over switch control end is connected in the MCU microcontroller.
Preferably; the described first filtering protection module is connected in the interchange or direct-current input power supplying that voltage is 60V-280V; the voltage/current of output constant voltage, constant current or the permanent power of described voltage/current acquisition module, its output voltage values are that direct current 3V-200V ± 2%, output current value are that 350MA-15A, output power value are 3W-300W.
The present invention compared with prior art has tangible advantage and beneficial effect, particularly, as shown from the above technical solution, it mainly is that the MCU microcontroller with software programming is the control core of Switching Power Supply, replace former logic IC control PFC with digital control scheme, system simulation is become resistive load, the MCU microcontroller drives two groups of power switch modules simultaneously, one group is the PFC correction module, and another group is power output module.Because the module of respectively forming of Switching Power Supply all is connected to the MCU microcontroller, realize the information feedback function, the relation of autobalance PFC correction module and power output module when the software systems of MCU microcontroller are moved, realize intelligent control, reach the level of High Power Factor (PFC), high efficiency, low power consumption standby.Switching Power Supply of the present invention has been saved the control circuit of logic IC complexity, makes the circuit structure of product simple, and hardware cost is low, finished-product volume is little.Moreover, because the MCU microcontroller is provided with the I/O PORT COM, use the digital-control type switch power technology, can use software and extraneous contact, easy to use, practical.
In addition, the present invention's power output module can be arranged to isolated form and non-isolation type dual mode, can freely select according to real needs, and implementation is various, and is multiple functional.
For more clearly setting forth architectural feature of the present invention and effect, the present invention is described in detail below in conjunction with accompanying drawing and specific embodiment.
Description of drawings
Fig. 1 is the structural principle block diagram of the present invention's first embodiment;
Fig. 2 is the circuit diagram of PFC correction module among the present invention's first embodiment;
Fig. 3 is the circuit diagram of power output module among the present invention's first embodiment;
Fig. 4 is the connection layout that the MCU microcontroller is provided with the I/O PORT COM among the present invention's first embodiment;
Fig. 5 is the circuit diagram of power output module among the present invention's second embodiment.
The accompanying drawing identifier declaration:
10, the first filtering protection module 20, PFC correction module
30, power output module 40, the second filtering protection module
50, voltage/current acquisition module 60, MCU microcontroller
70, switch module 80, I/O PORT COM
Embodiment
Please refer to Fig. 1 to shown in Figure 3; it has demonstrated the concrete structure of the present invention's first embodiment; this Switching Power Supply includes the first filtering protection module 10; PFC correction module 20; power output module 30; the second filtering protection module 40; voltage/current acquisition module 50 and MCU microcontroller 60; this first filtering protection module 10 has the input of a connection AC/DC; the output of this first filtering protection module 10 is connected in series power output module 30 successively; the second filtering protection module 40; voltage/current acquisition module 50; the output of this voltage/current acquisition module 50 is connected in MCU microcontroller 60, and the first filtering protection module 10; PFC correction module 20; the power output module 30 and the second filtering protection module 40 are connected on the MCU microcontroller 60 respectively.
Its control principle is as follows: the MCU microcontroller 60 with software programming is the control core of Switching Power Supply, replace former logic IC control PFC with digital control scheme, system simulation is become resistive load, MCU microcontroller 60 drives two groups of power switch modules simultaneously, one group is the PFC(power factor) correction module 20, another group is power output module 30.The relation of autobalance PFC correction module 20 and power output module 30 when the software systems of MCU microcontroller 60 are moved realizes intelligent control, reaches the level of High Power Factor (PFC), high efficiency, low power consumption standby.And; because the first filtering protection module 10; PFC correction module 20; power output module 30; the second filtering protection module 40; voltage/current acquisition module 50 and MCU microcontroller 60 all are connected with MCU microcontroller 60; realize the feedback control between each performance element and the MCU; the all types of analog quantitys of 60 pairs of power supplys of MCU microcontroller and periphery are converted into digital quantity and carry out logic and numerical operation; make switch power supply system integral body have the characteristics of adaptation function and enforcement Based Intelligent Control; can obtain High Power Factor; high efficiency; low power consumption standby is to constitute a kind of environment protection switch power supply.In addition, this switching system is controlled with digital-control type, has saved the design of the IC circuit of traditional complexity, makes product structure simple, and peripheral components and parts are few, so hardware cost is low, also can accomplish the Switching Power Supply miniaturization.
Particularly, between described MCU microcontroller 60 and the PFC correction module 20, be connected with a switch module 70 respectively between described MCU microcontroller 60 and the power output module 30, in the present embodiment, described switch module 70 is the Mosfet change over switch.
As shown in Figure 2, described PFC correction module 20 comprises bridge circuit BD, voltage lifting PFC circuit and voltage collection circuit, this voltage lifting PFC circuit comprises inductance L and diode D, this voltage collection circuit comprises capacitor C and resistance R 1, R2, the anode of this bridge circuit BD is by a positive wire series inductance L and diode D, the negative terminal of bridge circuit BD is connected on the cathode conductor, this just, the node 1 of cathode conductor, connect a Mosfet change over switch between 2, the control end of this Mosfet change over switch is connected on the MCU microcontroller 60, to realize the information feedback function, make things convenient for Based Intelligent Control.Connect capacitor C between the node 3,4 of this positive and negative electrode lead, series resistor R1, R2 between the node 5,6 of positive and negative electrode lead are connected on the MCU microcontroller 60 by lead on the node 7 between this resistance R 1, the R2.Among Fig. 2, BD, C distance piece are the voltage lifting PFC circuit, in pfc circuit, and itself inductance L and high frequency Mosfet change over switch, also having the high pressure sustained diode is exactly a Switching Power Supply efficiently, just can improve voltage by inductance L itself.
As shown in Figure 3, described power output module 30 comprises isolated form transformer T, diode D and capacitor C, ground connection behind the once end connection Mosfet change over switch of this isolated form transformer T, the control end of this Mosfet change over switch is connected on the MCU microcontroller 60, to realize the information feedback function, make things convenient for Based Intelligent Control.The secondary terminals of this isolated form transformer T connects diode D, and capacitor C is connected between the circuit node 8,9.Be in same software (MCU microcontroller 60) because PFC proofreaies and correct with power output, work coordination between the two is unified.
As shown in Figure 4, this MCU microcontroller 60 is provided with I/O PORT COM 80, and this I/O PORT COM 80 can be cable port or radio port, specifically can be various ways such as wifi, BT, IR, mechanical type, the Applied Digital power technology can be got in touch with extraneous with software.For example: when this Switching Power Supply is used for LED public place or domestic lighting, realize external communications, can control brightness simultaneously, regulate and control energy-conservationly, make the control of product more humane by I/O PORT COM 80.
In actual application, this Switching Power Supply should be in all kinds of household electrical appliances, charger for mobile phone, laptop computer power supply and charger etc., is all kinds of LED light fixture products or decides product of voltage and realize intelligentized effective way.
It is as follows specifically to enumerate in the practical application the electric scope and the leading indicator of this Switching Power Supply:
1) power bracket: 3W-300W according to different demands, can draft the different capacity section.
2) input power supply: exchange or direct current voltage 60V-280V (full voltage).
3) output voltage: direct current 3V-200V ± 2%, according to different demands, can draft the different capacity section.
4) output current: 350MA-15A according to different demands, can draft the different capacity section.
5) output type: constant voltage, constant current or the output of permanent power.
6) electric current quality: dc ripple coefficient＜2%.
7) communication function: control of RC infrared coding and WIFI control.
8) by software programming, switch power supply system can be finished the logic function of all kinds of complexity.
9) low power consumption standby power:＜0.02 Watt.
Please refer to shown in Figure 5ly, it has demonstrated the concrete structure of the present invention's second embodiment, and the structural principle of present embodiment and first embodiment are basic identical, and difference is the circuit connecting mode of power output module.Among above-mentioned first embodiment, its power output module belongs to isolated form, realize isolating the output (see figure 3) with isolated form transformer T, and among this second embodiment, power output module belongs to the non-isolation type (see figure 5).The circuit of this power output module comprises diode D, non-isolation type transformer T and capacitor C, this diode D and between the node 10,11 of circuit, this non-isolation type transformer T goes here and there between circuit node 11,13, and this capacitor C connects and between circuit node 12,13.Be connected with the Mosfet change over switch on circuit node 11, this Mosfet change over switch control end is connected in MCU microcontroller 60, to realize the information feedback function, makes things convenient for Based Intelligent Control.
In sum, design focal point of the present invention is, it mainly is that the MCU microcontroller 60 with software programming is the control core of Switching Power Supply, replace former logic IC control PFC with digital control scheme, system simulation is become resistive load, MCU microcontroller 60 drives two groups of power switch modules simultaneously, and one group is PFC correction module 20, and another group is power output module 30.The relation of autobalance PFC correction module 20 and power output module 30 during the operation of the software systems of MCU microcontroller 60 reaches the level of High Power Factor (PFC), high efficiency, low power consumption standby.Switching Power Supply of the present invention has been saved the control circuit of logic IC complexity, makes the circuit structure of product simple, and hardware cost is low, finished-product volume is little.Moreover, because MCU microcontroller 60 is provided with I/O PORT COM 80, use the digital-control type switch power technology, can use software and extraneous contact.
The above, it only is preferred embodiment of the present invention, be not that technical scope of the present invention is imposed any restrictions, so every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any trickle modification, equivalent variations and modification that above embodiment did.
Claims (9)
1. intelligent numerical control Switching Power Supply; it is characterized in that: comprise MCU microcontroller that contains software programming and the first filtering protection module that is connected successively, PFC correction module, power output module, the second filtering protection module, voltage/current acquisition module; this first filtering protection module, PFC correction module, power output module, the second filtering protection module, voltage/current acquisition module all are connected in the MCU microcontroller, and also are provided with the I/O PORT COM that can realize with external communication on this MCU microcontroller.
2. intelligent numerical control Switching Power Supply according to claim 1 is characterized in that: described I/O PORT COM is cable port or radio port.
3. intelligent numerical control Switching Power Supply according to claim 2 is characterized in that: described I/O PORT COM is wifi port, BT port, IR port or mechanical type port.
4. intelligent numerical control Switching Power Supply according to claim 1 is characterized in that: between described MCU microcontroller and the PFC correction module, be connected with a switch module respectively between described MCU microcontroller and the power output module.
5. intelligent numerical control Switching Power Supply according to claim 4 is characterized in that: described switch module is the Mosfet change over switch.
6. intelligent numerical control Switching Power Supply according to claim 5, it is characterized in that: described PFC correction module comprises bridge circuit BD, voltage lifting PFC circuit and voltage collection circuit, this voltage lifting PFC circuit comprises inductance L and diode D, this voltage collection circuit comprises capacitor C and resistance R 1, R2, the anode of this bridge circuit BD is by a positive wire series inductance L and diode D, the negative terminal of bridge circuit BD is connected on the cathode conductor, this just, the node 1 of cathode conductor, connect a Mosfet change over switch between 2, the control end of this Mosfet change over switch is connected on the MCU microcontroller, this just, the node 3 of cathode conductor, connect capacitor C between 4, just, the node 5 of cathode conductor, series resistor R1 between 6, R2, this resistance R 1, be connected on the MCU microcontroller by lead on the node 7 between the R2.
7. intelligent numerical control Switching Power Supply according to claim 5, it is characterized in that: described power output module comprises isolated form transformer T, diode D and capacitor C, ground connection behind the once end connection Mosfet change over switch of this isolated form transformer T, the control end of this Mosfet change over switch is connected on the MCU microcontroller, the secondary terminals of this isolated form transformer T connects diode D, and capacitor C is connected between the circuit node 8,9.
8. intelligent numerical control Switching Power Supply according to claim 5, it is characterized in that: described power output module comprises diode D, non-isolation type transformer T and capacitor C, this diode D and between the node 10,11 of circuit, this non-isolation type transformer T goes here and there between circuit node 11,13, this capacitor C connects and between circuit node 12,13, be connected with the Mosfet change over switch on circuit node 11, this Mosfet change over switch control end is connected in the MCU microcontroller.
9. intelligent numerical control Switching Power Supply according to claim 1; it is characterized in that: the described first filtering protection module is connected in the interchange or direct-current input power supplying that voltage is 60V-280V; the voltage/current of output constant voltage, constant current or the permanent power of described voltage/current acquisition module, its output voltage values are that direct current 3V-200V ± 2%, output current value are that 350MA-15A, output power value are 3W-300W.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101268732A CN103227563A (en) | 2013-04-13 | 2013-04-13 | Intelligent digital control switch power supply |
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| CN2013101268732A CN103227563A (en) | 2013-04-13 | 2013-04-13 | Intelligent digital control switch power supply |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731033A (en) * | 2013-12-19 | 2014-04-16 | 山东艾诺仪器有限公司 | Wide-range DC power supply with constant power output characteristic |
| CN104503263A (en) * | 2014-09-30 | 2015-04-08 | 浙江达峰科技有限公司 | Switching response system based on low power consumption power supply |
| CN105005214A (en) * | 2014-04-17 | 2015-10-28 | Lg电子株式会社 | Appliance and control method thereof |
-
2013
- 2013-04-13 CN CN2013101268732A patent/CN103227563A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731033A (en) * | 2013-12-19 | 2014-04-16 | 山东艾诺仪器有限公司 | Wide-range DC power supply with constant power output characteristic |
| CN105005214A (en) * | 2014-04-17 | 2015-10-28 | Lg电子株式会社 | Appliance and control method thereof |
| CN105005214B (en) * | 2014-04-17 | 2018-03-09 | Lg电子株式会社 | Electrical equipment and its operating method |
| CN104503263A (en) * | 2014-09-30 | 2015-04-08 | 浙江达峰科技有限公司 | Switching response system based on low power consumption power supply |
| CN104503263B (en) * | 2014-09-30 | 2017-05-17 | 浙江达峰科技有限公司 | Switching response system based on low power consumption power supply |
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Application publication date: 20130731 |