CN104836434B - Switch power supply and working method thereof - Google Patents
Switch power supply and working method thereof Download PDFInfo
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- CN104836434B CN104836434B CN201410686384.7A CN201410686384A CN104836434B CN 104836434 B CN104836434 B CN 104836434B CN 201410686384 A CN201410686384 A CN 201410686384A CN 104836434 B CN104836434 B CN 104836434B
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1582—Buck-boost converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention discloses a switch power supply and a working method thereof. The switch power supply comprise a controller, a voltage current detection module, a voltage input port, a voltage output port, a data input port, a data output port, a switch tube SW1, a switch tube SW2, a switch tube SW4, a switch tube SW5, an inductor L, a capacitor C1, and a capacitor C2. The witch tube SW1, the switch tube SW2, the switch tube SW4, the switch tube SW5, the inductor L, the capacitor C2, the voltage current detection module, and the controller can be used to form the traditional switch power supply part. The switch tube SW1, the switch tube SW2, the switch tube SW4, the inductor L, the capacitor C1, the voltage current detection module, and the controller can be used to form the data transmitting part. The data transmission can be carried out in a power supply gap, and the functions of the data output buffer can be realized, and the costs can be effectively reduced.
Description
Technical field
The present invention relates to power technique fields, more particularly to a kind of Switching Power Supply and its method of work.
Background technology
General electronic equipment is equipped with Switching Power Supply, work of the voltage conversion that DC source is exported for electronic equipment
Voltage.There is idle off time in Switching Power Supply, in the off time generally according to DCM mode powers, during DCM mode powers
Interior Switching Power Supply is not powered work, if data-transformation facility can be realized in the off time using Switching Power Supply, can
It is enough to save other setting data output buffer in electronic equipment, can effectively reduce equipment cost.
The content of the invention
The purpose of the present invention be overcome existing Switching Power Supply can not power supply gap transmission data technical problem, there is provided
A kind of Switching Power Supply, its within the power supply off time can transmission data, realize the function of data output buffer, effectively reduce
Cost.
In order to solve the above problems, the present invention is employed the following technical solutions and is achieved：
A kind of Switching Power Supply of the present invention, including controller, measure voltage ＆amp, control source port, voltage is defeated
Exit port, data-in port, data-out port, switching tube SW1, switching tube SW2, switching tube SW4, switching tube SW5, inductance
L, electric capacity C1 and electric capacity C2, the control source port are electrically connected with first conduction terminal of switching tube SW1, and the of switching tube SW1
First conducting of first conduction terminal, the first test side of measure voltage ＆amp and inductance L of two conduction terminals and switching tube SW2
End electrical connection, second conduction terminal of inductance L and the second test side of measure voltage ＆amp, first conducting of switching tube SW4
End, first conduction terminal of switching tube SW5, the top crown of electric capacity C1 and data-out port electrical connection, the second of switching tube SW5 leads
The top crown of go side and electric capacity C2 and voltage output port electrically connect, second conduction terminal of switching tube SW2, the of switching tube SW4
The bottom crown of two conduction terminals, the bottom crown of electric capacity C1 and electric capacity C2 is all grounded, the controller respectively with data-in port, electricity
The data output end of current voltage detection module, the control end of switching tube SW1, the control end of switching tube SW2, the control of switching tube SW4
The control end electrical connection of end processed and switching tube SW5.
After upper electricity, Switching Power Supply is according to DCM pattern powering loads.During power supply, controller, measure voltage ＆amp,
Power supply E, switching tube SW1, switching tube SW2, switching tube SW4, switching tube SW5, inductance L and electric capacity C2 composition DC source, this is straight
Stream power supply is under the control of the controller according to DCM mode powers, voltage output port output voltage powering load.
Within the power supply off time of DCM patterns, Switching Power Supply is stopped power supply, and sends N number of data.In input signal
Din from low transition to high level, then by high level jump to it is low level during, Switching Power Supply work be divided into D1, D2,
Five stages of D4, D5 and D6.
When input signal Din is from low transition to high level, into the D1 stages, controller controlling switch pipe SW1, open
Pipe SW4 conductings are closed, controlling switch pipe SW2, switching tube SW5 disconnect, and power supply E charges to inductance L and electric capacity C1.Subsequently enter D2 ranks
Section, controller controlling switch pipe SW2 conductings, controlling switch pipe SW1, switching tube SW4, switching tube SW5 disconnect, the energy on inductance L
Amount is transferred on electric capacity C1, and at the end of the D2 stages, the electric current in inductance L is changed into 0, and the data-out port of Switching Power Supply is stable
Output data " 1 ".
When input signal Din jumps to low level from high level, into the D4 stages, controller controlling switch pipe SW2 leads
Logical, controlling switch pipe SW1, switching tube SW4, switching tube SW5 disconnect, the energy transfer on electric capacity C1 in inductance L, in the D4 stages
At the end of, the voltage on electric capacity C1 is 0, and the electric current in inductance L reaches maximum.The D5 stages are subsequently entered, controller control is opened
Close pipe SW1, switching tube SW4 conducting, controlling switch pipe SW2, switching tube SW5 disconnect, the energy transfer in inductance L in power supply E,
At the end of the D5 stages, the electric current in inductance L is changed into 0.The D6 stages are subsequently entered, controller controlling switch pipe SW4 conductings, control are opened
Close pipe SW1, switching tube SW2, switching tube SW5 to disconnect, the voltage on electric capacity C1 is enhanced to 0, the data output end of Switching Power Supply
The stable output data " 0 " of mouth.
Preferably, a kind of Switching Power Supply also includes switching tube SW3 and switching tube SW6, the of the switching tube SW3
One conduction terminal is electrically connected with control source port, second conduction terminal of switching tube SW3 and second conduction terminal of inductance L, switching tube
The first conduction terminal electrical connection of SW6, second conduction terminal of switching tube SW6 are electrically connected with data-out port, the control of switching tube SW3
The control end of end processed and switching tube SW6 is electrically connected with the controller respectively.
The control source port of Switching Power Supply is electrically connected with power supply E positive poles, power supply E minus earths, the voltage of Switching Power Supply
Output port is electrically connected with load positive pole, loads minus earth.Power supply E is DC source.Switching tube SW1, switching tube SW2, open
Close pipe SW4, switching tube SW5, inductance L, electric capacity C2, measure voltage ＆amp and controller and constitute traditional switch power supply unit
Point.Power supply E, switching tube SW1, switching tube SW2, switching tube SW3, switching tube SW4, switching tube SW6, inductance L, electric capacity C1, voltage
Current detection module and controller constitute lossless data transmitting portion.
After upper electricity, Switching Power Supply is according to DCM pattern powering loads.During power supply, controller controlling switch pipe SW3 and switch
Pipe SW6 is permanent to be disconnected, controller, measure voltage ＆amp, power supply E, switching tube SW1, switching tube SW2, switching tube SW4, switch
Pipe SW5, inductance L and electric capacity C2 composition DC sources, the DC source is under the control of the controller according to DCM mode powers, electricity
Pressure output port output voltage powering load.The power-up period of DCM mode powers is time T, power supply in a power-up period
Time is T1, and power off time T2, T=T1+T2, and Switching Power Supply is worked as follows in power-on time T1：
The P1 stages：Controller controlling switch pipe SW1, switching tube SW4 are turned on, controlling switch pipe SW2, switching tube SW3, switch
Pipe SW5, switching tube SW6 disconnect, and power supply E charges to inductance L；
The P2 stages：When in inductance L, electric current reaches maximum, controller controlling switch pipe SW2, switching tube SW5 conducting, control
Switching tube SW1 processed, switching tube SW3, switching tube SW4, switching tube SW6 disconnect, and the energy transfer in inductance L is in electric capacity C2 to negative
Power supply is carried, the P1 stages are jumped to when electric current is reduced to 0 in inductance L.
In the power supply off time T2 of DCM patterns, Switching Power Supply is stopped power supply, and sends N number of data, each data
The transmission time is T3, T2 >=N × T3.In input signal Din from low transition to high level, then low electricity is jumped to by high level
In flat process, Switching Power Supply work is divided into six stages of D1, D2, D3, D4, D5 and D6.
When input signal Din is from low transition to high level, into the D1 stages, controller controlling switch pipe SW1, open
Pipe SW4 conductings are closed, controlling switch pipe SW2, switching tube SW3, switching tube SW5, switching tube SW6 disconnect, and power supply E charges to inductance L,
At the end of the D1 stages, the current energy in inductance L is equal to the capacitance energy storage during voltage VE that voltage on electric capacity C1 is power supply E.
Subsequently enter D2 stages, controller controlling switch pipe SW2, switching tube SW6 conducting, controlling switch pipe SW1, switching tube SW3, switch
Pipe SW4, switching tube SW5 disconnect, in the energy transfer on inductance L to electric capacity C1, the electric current at the end of the D2 stages, in inductance L
It is changed into 0.Subsequently enter D3 stages, controller controlling switch pipe SW3, switching tube SW6 conducting, controlling switch pipe SW1, switching tube
SW2, switching tube SW4, switching tube SW5 disconnect, and the voltage on electric capacity C1 is enhanced to power supply E the voltage VE of power supply E, Switching Power Supply
The stable output data " 1 " of data-out port.
When input signal Din jumps to low level from high level, into the D4 stages, controller controlling switch pipe SW2, open
Pipe SW6 conductings are closed, controlling switch pipe SW1, switching tube SW3, switching tube SW4, switching tube SW5 disconnect, and the energy on electric capacity C1 turns
Move on in inductance L, at the end of the D4 stages, the voltage on electric capacity C1 is 0, and the electric current in inductance L reaches maximum.Subsequently enter
In the D5 stages, controller controlling switch pipe SW1, switching tube SW4, switching tube SW6 conductings, are opened controlling switch pipe SW2, switching tube SW3
Close pipe SW5 to disconnect, in power supply E, at the end of the D5 stages, the electric current in inductance L is changed into 0 to the energy transfer in inductance L.Then enter
Enter the D6 stages, controller controlling switch pipe SW4, switching tube SW6 conducting, controlling switch pipe SW1, switching tube SW2, switching tube SW3,
Switching tube SW5 disconnects, and the voltage on electric capacity C1 is enhanced to 0, the stable output data " 0 " of data-out port of Switching Power Supply.
A kind of method of work of Switching Power Supply of the present invention, control source port and the power supply E positive poles of Switching Power Supply are electrically connected
Connect, power supply E minus earths are comprised the following steps；
S1：Switching Power Supply is according to DCM pattern powering loads：During power supply, controller controlling switch pipe SW3 and switching tube
SW6 is permanent to be disconnected, controller, measure voltage ＆amp, power supply E, switching tube SW1, switching tube SW2, switching tube SW4, switching tube
SW5, inductance L and electric capacity C2 composition DC sources, the DC source is under the control of the controller according to DCM mode powers, voltage
Output port output voltage powering load；
S2：In the power supply off time T2 of DCM patterns, Switching Power Supply sends N number of data, and the method for sending data includes
Following steps：
S21：The output voltage of electric current and voltage output port in current/voltage detection module detection inductance L, controller
Read input signal Din, when input signal Din by low transition to high level when, execution step S22, when input signal Din
During by high level saltus step to low level, execution step S25；
S22：Controller controlling switch pipe SW1, switching tube SW4 turn on the H times, controlling switch pipe SW2, switching tube SW3, open
Close pipe SW5, switching tube SW6 and disconnect the H times, power supply E charges to inductance L；
S23：At the end of the H times, controller controlling switch pipe SW2, switching tube SW6 conducting, controlling switch pipe SW1, switch
Pipe SW3, switching tube SW4, switching tube SW5 disconnect, in the energy transfer on inductance L to electric capacity C1；
S24：When in inductance L, electric current is 0, controller controlling switch pipe SW3, switching tube SW6 conducting, controlling switch pipe
SW1, switching tube SW2, switching tube SW4, switching tube SW5 disconnect, and the voltage on electric capacity C1 is enhanced to power supply E the voltage of power supply E
VE, then jumps to step S21；
S25：Controller controlling switch pipe SW2, switching tube SW6 are turned on, controlling switch pipe SW1, switching tube SW3, switching tube
SW4, switching tube SW5 disconnect, and the energy transfer on electric capacity C1 is in inductance L；
S26：When the voltage on electric capacity C1 is 0, controller controlling switch pipe SW1, switching tube SW4, switching tube SW6 lead
Logical, controlling switch pipe SW2, switching tube SW3, switching tube SW5 disconnect, and the energy transfer in inductance L is in power supply E；
S27：When the electric current on inductance L is 0, controller controlling switch pipe SW4, switching tube SW6 conducting, controlling switch pipe
SW1, switching tube SW2, switching tube SW3, switching tube SW5 disconnect, and the voltage on electric capacity C1 is enhanced to 0, then jumps to step
S21。
Preferably, the transmission time of each data is T3, T2 >=N × T3.User can adjust DCM patterns as needed
Power supply off time T2, so as to adjust the data amount check sent in power-on time.
Preferably, H time spans are：Controller real time modifying H time spans, comprise the following steps：Controller presets H
The initial value of time, at the end of step S23, in inductance L, electric current is 0, if the voltage now on electric capacity C1 is more than power supply E's
Voltage VE, then reduce H time spans, if the voltage now on electric capacity C1 is less than the voltage VE of power supply E, the increase H times are long
Degree.
Preferably, controller, measure voltage ＆amp, power supply E, switching tube SW1, switching tube in step S1
The BUCK- of buck DC-DC of SW2, switching tube SW4, switching tube SW5, inductance L and electric capacity C2 composition synchronous rectification homophase output
BOOST topological circuits, the BUCK-BOOST topological circuits are under the control of the controller according to DCM mode powers, voltage output end
Mouth output voltage powering load.
Preferably, in step S1, controller also controlling switch pipe SW4 is permanent disconnect, the permanent conductings of controlling switch pipe SW5,
Controller, measure voltage ＆amp, power supply E, switching tube SW1, switching tube SW2, inductance L and electric capacity C2 composition synchronous rectification drop
The BUCK topological circuits of pressure DC-DC, the BUCK topological circuits are under the control of the controller according to DCM mode powers, voltage output
Port output voltage powering load.
Preferably, in step S1, controller also controlling switch pipe SW2 is permanent disconnect, the permanent conductings of controlling switch pipe SW1,
Controller, measure voltage ＆amp, power supply E, switching tube SW4, switching tube SW5, inductance L and electric capacity C2 composition synchronous rectification liter
The BOOST topological circuits of pressure DC-DC, under the control of the controller according to DCM mode powers, voltage is defeated for the BOOST topological circuits
Exit port output voltage powering load.
Preferably, the power-up period of DCM mode powers is time T, in a power-up period, power-on time is T1, T=T1
+ T2, the method for supplying power in power-on time T1 are comprised the following steps：
M1：Controller controlling switch pipe SW1, switching tube SW4 are turned on, controlling switch pipe SW2, switching tube SW3, switching tube
SW5, switching tube SW6 disconnect, and power supply E charges to inductance L；
M2：When in inductance L, electric current reaches maximum, controller controlling switch pipe SW2, switching tube SW5 conducting, control are opened
Close pipe SW1, switching tube SW3, switching tube SW4, switching tube SW6 to disconnect, the energy transfer in inductance L is supplied to load in electric capacity C2
Electricity, when in inductance L, electric current is reduced to 0, the T1 times terminate.
Preferably, the T1 times terminate after enter power supply off time T2, power supply off time T2 in switching tube
SW5 is permanent to be disconnected, and Switching Power Supply does not carry out discharge and recharge to electric capacity C2.
The present invention substantial effect be：Switching Power Supply power supply off time in can transmission data, realize that data are defeated
Go out the function of buffer, effectively reduce cost.
Description of the drawings
Fig. 1 is a kind of circuit theory diagrams of the present invention；
Fig. 2 is a kind of control signal sequential chart of the present invention.
In figure：1st, controller, 2, measure voltage ＆amp, 3, control source port, 4, voltage output port, 5, data
Input port, 6, data-out port, 7, load.
Specific embodiment
Below by embodiment, and accompanying drawing is combined, technical scheme is described in further detail.
Embodiment 1：A kind of Switching Power Supply of the present embodiment, as shown in figure 1, including controller 1, measure voltage ＆amp
2nd, control source port 3, voltage output port 4, data-in port 5, data-out port 6, switching tube SW1, switching tube
SW2, switching tube SW4, switching tube SW5, inductance L, electric capacity C1 and electric capacity C2, the of the control source port 3 and switching tube SW1
The electrical connection of one conduction terminal, second conduction terminal of switching tube SW1 and first conduction terminal of switching tube SW2, measure voltage ＆amp 2
The first test side and inductance L the electrical connection of the first conduction terminal, second conduction terminal of inductance L and measure voltage ＆amp 2
Second test side, first conduction terminal of switching tube SW4, first conduction terminal of switching tube SW5, the top crown of electric capacity C1 and data are defeated
Exit port 6 is electrically connected, and second conduction terminal of switching tube SW5 is electrically connected with the top crown of electric capacity C2 and voltage output port 4, switch
Second conduction terminal of pipe SW2, the bottom crown of second conduction terminal, the bottom crown of electric capacity C1 and electric capacity C2 of switching tube SW4 are all grounded,
The controller 1 respectively with data-in port 5, the data output end of measure voltage ＆amp 2, switching tube SW1 control
The control end electrical connection at end, the control end of switching tube SW2, the control end of switching tube SW4 and switching tube SW5.
After upper electricity, Switching Power Supply is according to DCM pattern powering loads.During power supply, controller, measure voltage ＆amp,
Power supply E, switching tube SW1, switching tube SW2, switching tube SW4, switching tube SW5, inductance L and electric capacity C2 composition DC source, this is straight
Stream power supply is under the control of the controller according to DCM mode powers, voltage output port output voltage powering load.
Within the power supply off time of DCM patterns, Switching Power Supply is stopped power supply, and sends N number of data.In input signal
Din from low transition to high level, then by high level jump to it is low level during, Switching Power Supply work be divided into D1, D2,
Five stages of D4, D5 and D6.
When input signal Din is from low transition to high level, into the D1 stages, controller controlling switch pipe SW1, open
Pipe SW4 conductings are closed, controlling switch pipe SW2, switching tube SW5 disconnect, and power supply E charges to inductance L and electric capacity C1.Subsequently enter D2 ranks
Section, controller controlling switch pipe SW2 conductings, controlling switch pipe SW1, switching tube SW4, switching tube SW5 disconnect, the energy on inductance L
Amount is transferred on electric capacity C1, and at the end of the D2 stages, the electric current in inductance L is changed into 0, and the data-out port of Switching Power Supply is stable
Output data " 1 ".
When input signal Din jumps to low level from high level, into the D4 stages, controller controlling switch pipe SW2 leads
Logical, controlling switch pipe SW1, switching tube SW4, switching tube SW5 disconnect, the energy transfer on electric capacity C1 in inductance L, in the D4 stages
At the end of, the voltage on electric capacity C1 is 0, and the electric current in inductance L reaches maximum.The D5 stages are subsequently entered, controller control is opened
Close pipe SW1, switching tube SW4 conducting, controlling switch pipe SW2, switching tube SW5 disconnect, the energy transfer in inductance L in power supply E,
At the end of the D5 stages, the electric current in inductance L is changed into 0.The D6 stages are subsequently entered, controller controlling switch pipe SW4 conductings, control are opened
Close pipe SW1, switching tube SW2, switching tube SW5 to disconnect, the voltage on electric capacity C1 is enhanced to 0, the data output end of Switching Power Supply
The stable output data " 0 " of mouth.
Embodiment 2：A kind of Switching Power Supply of the present embodiment, as shown in figure 1, including controller 1, measure voltage ＆amp
2nd, control source port 3, voltage output port 4, data-in port 5, data-out port 6, switching tube SW1, switching tube
SW2, switching tube SW3, switching tube SW4, switching tube SW5, switching tube SW6, inductance L, electric capacity C1 and electric capacity C2, control source port
3 are electrically connected with the first conduction terminal of first conduction terminal and switching tube SW3 of switching tube SW1, second conduction terminal of switching tube SW1 with
The first conduction terminal electrical connection of first conduction terminal of switching tube SW2, the first test side of measure voltage ＆amp 2 and inductance L,
Second conduction terminal of inductance L and the second test side of measure voltage ＆amp 2, first conduction terminal of switching tube SW4, switching tube
The first conduction terminal electrical connection of first conduction terminal of SW5, second conduction terminal of switching tube SW3 and switching tube SW6, switching tube SW5
The second conduction terminal and electric capacity C2 top crown and voltage output port electrically connect, second conduction terminal of switching tube SW6 and electric capacity
The top crown and data-out port 6 of C1 is electrically connected, second conduction terminal of switching tube SW2, second conduction terminal of switching tube SW4,
The bottom crown of the bottom crown and electric capacity C2 of electric capacity C1 is all grounded, controller 1 respectively with data-in port 5, measure voltage ＆ current
The data output end of module 2, the control end of switching tube SW1, the control end of switching tube SW2, the control end of switching tube SW3, switch
The control end electrical connection of the control end, the control end of switching tube SW5 and switching tube SW6 of pipe SW4.
The control source port 3 of Switching Power Supply is electrically connected with power supply E positive poles, power supply E minus earths, the voltage of Switching Power Supply
Output port 4 is electrically connected with 7 positive poles of load, loads 7 minus earths.Power supply E is DC source.Switching tube SW1, switching tube SW2,
Switching tube SW4, switching tube SW5, inductance L, electric capacity C2, measure voltage ＆amp 2 and controller 1 constitute traditional switch power supply
Part.Power supply E, switching tube SW1, switching tube SW2, switching tube SW3, switching tube SW4, switching tube SW6, inductance L, electric capacity C1, electricity
Current voltage detection module 2 and controller 1 constitute lossless data transmitting portion.
After upper electricity, Switching Power Supply is according to DCM pattern powering loads.During power supply, 1 controlling switch pipe SW3 of controller and open
Close that pipe SW6 is permanent to be disconnected, controller 1, measure voltage ＆amp 2, power supply E, switching tube SW1, switching tube SW2, switching tube SW4,
Switching tube SW5, inductance L and electric capacity C2 composition DC sources, the DC source are supplied according to DCM patterns under the control of the controller
Electricity, 4 output voltage powering load of voltage output port.The power-up period of DCM mode powers be time T, a power-up period
Interior power-on time is T1, and power off time T2, T=T1+T2.
A kind of work schedule of Switching Power Supply is as shown in Fig. 2 including the such as next stage：
The P1 stages：1 controlling switch pipe SW1 of controller, switching tube SW4 are turned on, and controlling switch pipe SW2, switching tube SW3, are opened
Close pipe SW5, switching tube SW6 to disconnect, power supply E charges inductance L, and when in inductance L, electric current reaches maximum, the P1 stages terminate, and enter
Enter the P2 stages.The P2 stages：1 controlling switch pipe SW2 of controller, switching tube SW5 are turned on, and controlling switch pipe SW1, switching tube SW3, are opened
Close pipe SW4, switching tube SW6 to disconnect, the powering load in electric capacity C2 of the energy transfer in inductance L, when in inductance L, electric current reduces
Terminate to P2 stages when 0, into the power supply off time T2 of DCM patterns, power supply off time T2 re-executes P1 ranks after terminating
Section.
In the power supply off time T2 of DCM patterns, Switching Power Supply is stopped power supply, and input signal Din is from low transition
To high level, then low level is jumped to by high level.In this process, Switching Power Supply work be divided into D1, D2, D3, D4, D5 and
Six stages of D6.
When input signal Din is from low transition to high level, into the D1 stages, 1 controlling switch pipe SW1 of controller,
Switching tube SW4 is turned on, and controlling switch pipe SW2, switching tube SW3, switching tube SW5, switching tube SW6 disconnect, and power supply E is filled to inductance L
Electricity, at the end of the D1 stages, the current energy in inductance L is equal to the electric capacity storage during voltage VE that voltage on electric capacity C1 is power supply E
Energy.Subsequently enter the D2 stages, 1 controlling switch pipe SW2 of controller, switching tube SW6 conducting, controlling switch pipe SW1, switching tube SW3,
Switching tube SW4, switching tube SW5 disconnect, in the energy transfer on inductance L to electric capacity C1, at the end of the D2 stages, in inductance L
Electric current is changed into 0.Subsequently enter the D3 stages, 1 controlling switch pipe SW3 of controller, switching tube SW6 conducting, is opened controlling switch pipe SW1
Close pipe SW2, switching tube SW4, switching tube SW5 to disconnect, the voltage VDout on electric capacity C1 is enhanced to power supply E the voltage of power supply E
VE, the stable output data " 1 " of data-out port 6 of Switching Power Supply.
When input signal Din jumps to low level from high level, into the D4 stages, 1 controlling switch pipe SW2 of controller,
Switching tube SW6 is turned on, and controlling switch pipe SW1, switching tube SW3, switching tube SW4, switching tube SW5 disconnect, the energy on electric capacity C1
It is transferred in inductance L, at the end of the D4 stages, the voltage on electric capacity C1 is 0, and the electric current in inductance L reaches maximum.Then enter
Enter D5 stages, 1 controlling switch pipe SW1 of controller, switching tube SW4, switching tube SW6 conductings, controlling switch pipe SW2, switching tube
SW3, switching tube SW5 disconnect, and in power supply E, at the end of the D5 stages, the electric current in inductance L is changed into 0 to the energy transfer in inductance L.
Subsequently enter the D6 stages, 1 controlling switch pipe SW4 of controller, switching tube SW6 conducting, is opened controlling switch pipe SW1, switching tube SW2
Close pipe SW3, switching tube SW5 to disconnect, the voltage on electric capacity C1 is enhanced to 0, the data-out port 6 of Switching Power Supply is stable to be exported
Data " 0 ".
A kind of method of work of Switching Power Supply of the present embodiment, control source port and the power supply E positive electrical of Switching Power Supply
Connection, power supply E minus earths are comprised the following steps：
S1：Switching Power Supply is according to DCM pattern powering loads：During power supply, controller controlling switch pipe SW3 and switching tube
SW6 is permanent to be disconnected, controller, measure voltage ＆amp, power supply E, switching tube SW1, switching tube SW2, switching tube SW4, switching tube
SW5, inductance L and electric capacity C2 composition DC sources, the DC source is under the control of the controller according to DCM mode powers, voltage
Output port output voltage powering load；
S2：In the power supply off time T2 of DCM patterns, Switching Power Supply is stopped power supply, and sends N number of data, sends number
According to method comprise the following steps：
S21：The output voltage of electric current and voltage output port in current/voltage detection module detection inductance L, controller
Read input signal Din, when input signal Din by low transition to high level when, execution step S22, when input signal Din
During by high level saltus step to low level, execution step S25；
S22：Controller controlling switch pipe SW1, switching tube SW4 turn on the H times, controlling switch pipe SW2, switching tube SW3, open
Close pipe SW5, switching tube SW6 and disconnect the H times, power supply E charges to inductance L；
S23：At the end of the H times, controller controlling switch pipe SW2, switching tube SW6 conducting, controlling switch pipe SW1, switch
Pipe SW3, switching tube SW4, switching tube SW5 disconnect, in the energy transfer on inductance L to electric capacity C1；
S24：When in inductance L, electric current is 0, controller controlling switch pipe SW3, switching tube SW6 conducting, controlling switch pipe
SW1, switching tube SW2, switching tube SW4, switching tube SW5 disconnect, and the voltage VDout on electric capacity C1 is enhanced to power supply E's by power supply E
Voltage VE, then jumps to step S21；
S25：Controller controlling switch pipe SW2, switching tube SW6 are turned on, controlling switch pipe SW1, switching tube SW3, switching tube
SW4, switching tube SW5 disconnect, and the energy transfer on electric capacity C1 is in inductance L；
S26：When the voltage on electric capacity C1 is 0, controller controlling switch pipe SW1, switching tube SW4, switching tube SW6 lead
Logical, controlling switch pipe SW2, switching tube SW3, switching tube SW5 disconnect, and the energy transfer in inductance L is in power supply E；
S27：When the electric current on inductance L is 0, controller controlling switch pipe SW4, switching tube SW6 conducting, controlling switch pipe
SW1, switching tube SW2, switching tube SW3, switching tube SW5 disconnect, and the voltage on electric capacity C1 is enhanced to 0, then jumps to step
S21。
H time spans are：Controller real time modifying H time spans, comprise the following steps：Controller presets the first of H times
Initial value, at the end of step S23, in inductance L, electric current is 0, if the voltage now on electric capacity C1 is more than the voltage VE of power supply E,
Then reduce H time spans, if the voltage now on electric capacity C1 is less than the voltage VE of power supply E, increase H time spans.
The transmission time of each data is T3, T2 >=N × T3.User can adjust the power supply gap of DCM patterns as needed
Time T2, so as to adjust the data amount check sent in power-on time.
Controller in step S1, measure voltage ＆amp, power supply E, switching tube SW1, switching tube SW2, switching tube SW4,
The BUCK-BOOST topological circuits of buck DC-DC of switching tube SW5, inductance L and electric capacity C2 composition synchronous rectification homophase outputs,
, under the control of the controller according to DCM mode powers, voltage output port output voltage is to negative for the BUCK-BOOST topological circuits
Carry power supply.
In step S1, controller also controllable switch pipe SW4 is permanent disconnects, the permanent conductings of controlling switch pipe SW5, now, control
Device, measure voltage ＆amp, power supply E, switching tube SW1, switching tube SW2, inductance L and electric capacity C2 composition synchronous rectification blood pressure lowering
The BUCK topological circuits of DC-DC, the BUCK topological circuits are under the control of the controller according to DCM mode powers, voltage output end
Mouth output voltage powering load.
In step S1, controller also controllable switch pipe SW2 is permanent disconnects, the permanent conductings of controlling switch pipe SW1, now, control
Device, measure voltage ＆amp, power supply E, switching tube SW4, switching tube SW5, inductance L and electric capacity C2 composition synchronous rectified boost
The BOOST topological circuits of DC-DC, the BOOST topological circuits are under the control of the controller according to DCM mode powers, voltage output
Port output voltage powering load.
The power-up period of DCM mode powers is time T, and in a power-up period, power-on time is T1, T=T1+T2, is powered
Method of supplying power in time T1 is comprised the following steps：
M1：Controller controlling switch pipe SW1, switching tube SW4 are turned on, controlling switch pipe SW2, switching tube SW3, switching tube
SW5, switching tube SW6 disconnect, and power supply E charges to inductance L；
M2：When in inductance L, electric current reaches maximum, controller controlling switch pipe SW2, switching tube SW5 conducting, control are opened
Close pipe SW1, switching tube SW3, switching tube SW4, switching tube SW6 to disconnect, the energy transfer in inductance L is supplied to load in electric capacity C2
Electricity, when in inductance L, electric current is reduced to 0, the T1 times terminate.
The T1 times enter power supply off time T2 after terminating, and switching tube SW5 is permanent in the power supply off time T2 disconnects, switch
Power supply does not carry out discharge and recharge to electric capacity C2.
Claims (10)
1. a kind of Switching Power Supply, it is characterised in that：Including controller（1）, measure voltage ＆amp（2）, control source port
（3）, voltage output port（4）, data-in port（5）, data-out port（6）, switching tube SW1, switching tube SW2, switch
Pipe SW4, switching tube SW5, inductance L, electric capacity C1 and electric capacity C2, the control source port（3）Turn on the first of switching tube SW1
End electrical connection, second conduction terminal of switching tube SW1 and first conduction terminal of switching tube SW2, measure voltage ＆amp（2）
The first conduction terminal electrical connection of one test side and inductance L, second conduction terminal of inductance L and measure voltage ＆amp（2）
Two test sides, first conduction terminal of switching tube SW4, first conduction terminal of switching tube SW5, the top crown of electric capacity C1 and data output
Port（6）Electrical connection, second conduction terminal of switching tube SW5 and the top crown of electric capacity C2 and voltage output port（4）Electrical connection, opens
Close second conduction terminal of pipe SW2, the bottom crown of second conduction terminal, the bottom crown of electric capacity C1 and electric capacity C2 of switching tube SW4 all to connect
Ground, the controller（1）Respectively with data-in port（5）, measure voltage ＆amp（2）Data output end, switching tube
The control end electrical connection of the control end of SW1, the control end of switching tube SW2, the control end of switching tube SW4 and switching tube SW5, upper electricity
Afterwards, Switching Power Supply according to DCM pattern powering loads, within the power supply off time of DCM patterns, stop power supply by Switching Power Supply,
And send N number of data.
2. a kind of Switching Power Supply according to claim 1, it is characterised in that：Also include switching tube SW3 and switching tube SW6,
First conduction terminal of the switching tube SW3 and control source port（3）Electrical connection, the second conduction terminal and the inductance L of switching tube SW3
The second conduction terminal, the first conduction terminal electrical connection of switching tube SW6, second conduction terminal of switching tube SW6 and data-out port
（6）Electrical connection, the control end of the control end and switching tube SW6 of switching tube SW3 respectively with controller（1）Electrical connection.
3. a kind of method of work of Switching Power Supply, it is adaptable to a kind of Switching Power Supply as claimed in claim 2, the electricity of Switching Power Supply
Pressure input port is electrically connected with power supply E positive poles, power supply E minus earths, it is characterised in that comprise the following steps：
S1：Switching Power Supply is according to DCM pattern powering loads：During power supply, controlling switch pipe SW3 and switching tube SW6 are permanent for controller
Disconnect, controller, measure voltage ＆amp, power supply E, switching tube SW1, switching tube SW2, switching tube SW4, switching tube SW5, electricity
Sense L and electric capacity C2 composition DC sources, the DC source is under the control of the controller according to DCM mode powers, voltage output end
Mouth output voltage powering load；
S2：In the power supply off time T2 of DCM patterns, Switching Power Supply sends N number of data, send data method include it is following
Step：
S21：The output voltage of electric current and voltage output port in current/voltage detection module detection inductance L, controller read
Input signal Din, when input signal Din by low transition to high level when, execution step S22, when input signal Din is by height
When level saltus step is to low level, execution step S25；
S22：Controller controlling switch pipe SW1, switching tube SW4 turn on H times, controlling switch pipe SW2, switching tube SW3, switching tube
SW5, switching tube SW6 disconnect the H times, and power supply E charges to inductance L；
S23：At the end of the H times, controller controlling switch pipe SW2, switching tube SW6 conducting, controlling switch pipe SW1, switching tube
SW3, switching tube SW4, switching tube SW5 disconnect, in the energy transfer on inductance L to electric capacity C1；
S24：When in inductance L, electric current is 0, controller controlling switch pipe SW3, switching tube SW6 conducting, is opened controlling switch pipe SW1
Close pipe SW2, switching tube SW4, switching tube SW5 to disconnect, the voltage on electric capacity C1 is enhanced to power supply E the voltage VE of power supply E, then
Jump to step S21；
S25：Controller controlling switch pipe SW2, switching tube SW6 turn on, controlling switch pipe SW1, switching tube SW3, switching tube SW4,
Switching tube SW5 disconnects, and the energy transfer on electric capacity C1 is in inductance L；
S26：When the voltage on electric capacity C1 is 0, controller controlling switch pipe SW1, switching tube SW4, switching tube SW6 conductings, control
Switching tube SW2 processed, switching tube SW3, switching tube SW5 disconnect, and the energy transfer in inductance L is in power supply E；
S27：When the electric current on inductance L is 0, controller controlling switch pipe SW4, switching tube SW6 conducting, controlling switch pipe SW1,
Switching tube SW2, switching tube SW3, switching tube SW5 disconnect, and the voltage on electric capacity C1 is enhanced to 0, then jumps to step S21.
4. the method for work of a kind of Switching Power Supply according to claim 3, it is characterised in that：The transmission time of each data
For T3, T2 >=N × T3.
5. the method for work of a kind of Switching Power Supply according to claim 3, it is characterised in that：H time spans are：Controller
Real time modifying H time spans, comprise the following steps：The initial value of controller default H times, at the end of step S23, inductance L
Middle electric current is 0, if the voltage now on electric capacity C1 is more than the voltage VE of power supply E, reduces H time spans, if now electricity
Hold voltage VE of the voltage on C1 less than power supply E, then increase H time spans.
6. the method for work of a kind of Switching Power Supply according to claim 3 or 4 or 5, it is characterised in that：In step S1
Controller, measure voltage ＆amp, power supply E, switching tube SW1, switching tube SW2, switching tube SW4, switching tube SW5, inductance L and
The BUCK-BOOST topological circuits of buck DC-DC of electric capacity C2 composition synchronous rectification homophase outputs, the BUCK-BOOST are topological
Circuit is under the control of the controller according to DCM mode powers, voltage output port output voltage powering load.
7. the method for work of a kind of Switching Power Supply according to claim 3 or 4 or 5, it is characterised in that：In step S1
Controller also controlling switch pipe SW4 is permanent to be disconnected, the permanent conductings of controlling switch pipe SW5, controller, measure voltage ＆amp, power supply
E, switching tube SW1, switching tube SW2, inductance L and electric capacity C2 constitute the BUCK topological circuits of synchronous rectification buck DC-DC, the BUCK
Topological circuit is under the control of the controller according to DCM mode powers, voltage output port output voltage powering load.
8. the method for work of a kind of Switching Power Supply according to claim 3 or 4 or 5, it is characterised in that：In step S1
Controller also controlling switch pipe SW2 is permanent to be disconnected, the permanent conductings of controlling switch pipe SW1, controller, measure voltage ＆amp, power supply
E, switching tube SW4, switching tube SW5, inductance L and electric capacity C2 constitute the BOOST topological circuits of synchronous rectified boost DC-DC, should
BOOST topological circuits are under the control of the controller according to DCM mode powers, voltage output port output voltage powering load.
9. the method for work of a kind of Switching Power Supply according to claim 3, it is characterised in that：The power supply of DCM mode powers
Cycle is time T, and in a power-up period, power-on time is T1, T=T1+T2, and the method for supplying power in power-on time T1 includes following
Step：M1：Controller controlling switch pipe SW1, switching tube SW4 turn on, controlling switch pipe SW2, switching tube SW3, switching tube SW5,
Switching tube SW6 disconnects, and power supply E charges to inductance L；
M2：When in inductance L, electric current reaches maximum, controller controlling switch pipe SW2, switching tube SW5 conducting, controlling switch pipe
SW1, switching tube SW3, switching tube SW4, switching tube SW6 disconnect, the powering load in electric capacity C2 of the energy transfer in inductance L,
When in inductance L, electric current is reduced to 0, the T1 times terminate.
10. the method for work of a kind of Switching Power Supply according to claim 9, it is characterised in that：After the T1 times terminate
Into power supply off time T2, switching tube SW5 is permanent in the power supply off time T2 disconnects, and Switching Power Supply is not filled to electric capacity C2
Electric discharge.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686384.7A CN104836434B (en) | 2014-11-26 | 2014-11-26 | Switch power supply and working method thereof |
| PCT/CN2015/095137 WO2016082717A1 (en) | 2014-11-26 | 2015-11-20 | Switching power supply and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686384.7A CN104836434B (en) | 2014-11-26 | 2014-11-26 | Switch power supply and working method thereof |
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| CN104836434A CN104836434A (en) | 2015-08-12 |
| CN104836434B true CN104836434B (en) | 2017-04-12 |
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| CN201410686384.7A Active CN104836434B (en) | 2014-11-26 | 2014-11-26 | Switch power supply and working method thereof |
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| WO (1) | WO2016082717A1 (en) |
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| CN104836434B (en) * | 2014-11-26 | 2017-04-12 | 杭州硅星科技有限公司 | Switch power supply and working method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1960145A (en) * | 2005-10-14 | 2007-05-09 | 美国芯源系统股份有限公司 | Switching regulator with automatic multi mode conversion |
| CN101997411A (en) * | 2009-08-28 | 2011-03-30 | 立锜科技股份有限公司 | Control circuit and method of buck-boost power converter |
| CN102761249A (en) * | 2011-04-29 | 2012-10-31 | 芯传科技股份有限公司 | Current Mode DC Converter |
| CN203166762U (en) * | 2011-06-03 | 2013-08-28 | 松下电器产业株式会社 | Buck-Boost Converter |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7157888B2 (en) * | 2005-06-06 | 2007-01-02 | Aimtron Technology Corp. | Light loading control circuit for a buck-boost voltage converter |
| US7893665B2 (en) * | 2005-09-07 | 2011-02-22 | Linear Technology Corporation | Peak charging current modulation for burst mode conversion |
| US20100039080A1 (en) * | 2008-08-12 | 2010-02-18 | Toko, Inc. | Single-inductor buck-boost converter with positive and negative outputs |
| GB2466953B (en) * | 2009-01-14 | 2013-11-27 | Nujira Ltd | Control of multi-level supply stage |
| CN202309521U (en) * | 2011-09-23 | 2012-07-04 | 东南大学 | Control circuit for single-inductance dual-output switching power supply |
| CN104836434B (en) * | 2014-11-26 | 2017-04-12 | 杭州硅星科技有限公司 | Switch power supply and working method thereof |
-
2014
- 2014-11-26 CN CN201410686384.7A patent/CN104836434B/en active Active
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2015
- 2015-11-20 WO PCT/CN2015/095137 patent/WO2016082717A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1960145A (en) * | 2005-10-14 | 2007-05-09 | 美国芯源系统股份有限公司 | Switching regulator with automatic multi mode conversion |
| CN101997411A (en) * | 2009-08-28 | 2011-03-30 | 立锜科技股份有限公司 | Control circuit and method of buck-boost power converter |
| CN102761249A (en) * | 2011-04-29 | 2012-10-31 | 芯传科技股份有限公司 | Current Mode DC Converter |
| CN203166762U (en) * | 2011-06-03 | 2013-08-28 | 松下电器产业株式会社 | Buck-Boost Converter |
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| Publication number | Publication date |
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| CN104836434A (en) | 2015-08-12 |
| WO2016082717A1 (en) | 2016-06-02 |
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