CN105515382B - A kind of controlling circuit of voltage regulation of wireless power supply system - Google Patents
A kind of controlling circuit of voltage regulation of wireless power supply system Download PDFInfo
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- CN105515382B CN105515382B CN201610084027.2A CN201610084027A CN105515382B CN 105515382 B CN105515382 B CN 105515382B CN 201610084027 A CN201610084027 A CN 201610084027A CN 105515382 B CN105515382 B CN 105515382B
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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
- 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
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- Dc-Dc Converters (AREA)
Abstract
The present invention relates to a kind of controlling circuit of voltage regulation of wireless power supply system, it is electrically connected with the output end at wireless receiving end, including filter circuit, BUCK reduction voltage circuit and BOOST booster circuit, BUCK reduction voltage circuit is adopted with BOOST booster circuit and is connected serially, direct mode operation is worked in by control BUCK reduction voltage circuit and control BOOST booster circuit works in boost mode, and pressure stabilizing control is carried out to input voltage VIN；Or control BUCK reduction voltage circuit works in decompression mode and control BOOST booster circuit works in direct mode operation, carries out pressure stabilizing control to input voltage VIN, while being equipped with power supply circuit self-start circuit, in powered on moment, self-start circuit starting is drive circuitry, end CY to be output2After voltage value is stablized, by output end CY2For drive circuitry, guarantee to provide stable power supply for driving circuit, it is ensured that the stability of system operation.
Description
Technical field
The present invention relates to a kind of voltage regulator circuits, specifically, are related to a kind of controlling circuit of voltage regulation of wireless power supply system.
Background technique
Wireless power transmission technology is that the transmission of energy is carried out by the electromagnetic field of high-frequency alternating, when the parameter of system occurs
When variation or power, the position of load etc. change, from the energy that transmitting terminal picks up, changes will occur for receiving end.And
In general, electrical equipment side wishes to obtain stable power supply output, and the output pressure stabilizing of receiving end is wireless power transmission thus
System is capable of one of the necessary condition of steady operation.
Currently used wireless power transmission mainly in such a way that transmitting terminal is communicated with receiving end, passes through adjusting transmitting terminal
Working frequency, duty ratio or the phase of driving source etc. carry out the adjusting of receiving-end voltage.Receiving end may be implemented in this method
Pressure stabilizing, but in certain quick dynamic changing processes, it is such as unexpected open or close, rapid mobile receiving end equipment
When, since communication carries out closed loop feedback control and adjusts to need certain processing time, this will lead to rapidly to adjust with
The stabilization for guaranteeing output end voltage causes system to work unstable.In addition, being due to during the switching at runtime of load
System is in uncertain non-steady state, and the voltage of output end can rise very high, can be increased to several hectovolts, it is also possible to much low
In output voltage, this all proposes huge challenge to the pressure stabilizing output of system.
To realize pressure stabilizing output in input wide-voltage range, China Patent No. CN201510492384.8 discloses a kind of be applicable in
Wide scope inputs voltage-stabilizing output circuit topology, which is that BUCK circuit and BOOST circuit in parallel develop, will be existing
BUCK circuit and the series connection of BOOST circuit, can save an inductance and a capacitor, wider convenient for being applicable in input voltage range fluctuation
Use occasion.But it when the input voltage of foregoing circuit topology is higher or lower than output voltage, needs through BUCK circuit control
Device and BOOST circuit controller processed samples output voltage, and controls BUCK circuit and BOOST circuit switches over, by
In the delay of switching, when input voltage variation than it is very fast when, switching moment is easy to appear the unstable phenomenon of output voltage, and increases
The complexity for having added system to control.
Summary of the invention
The object of the present invention is to provide a kind of controlling circuit of voltage regulation of wireless power supply system, for realizing to wide input voltage
Export pressure stabilizing control.
The technical scheme is that a kind of controlling circuit of voltage regulation of wireless power supply system, the output with wireless receiving end
End electrical connection, including filter circuit, BUCK reduction voltage circuit and BOOST booster circuit, BUCK reduction voltage circuit and BOOST booster circuit
It adopts and is connected serially, the BUCK reduction voltage circuit is operable with direct mode operation or decompression mode, and BUCK reduction voltage circuit includes
The metal-oxide-semiconductor of two-way parallel connection, first store stream diode D1With the second inductance L2, the drain electrode of two-way metal-oxide-semiconductor with filter circuit output end
Electrical connection, the source electrode of two-way metal-oxide-semiconductor store stream diode D with first1With the second inductance L2Electrical connection, the grid of two-way metal-oxide-semiconductor with
The electrical connection of BUCK driving circuit, BUCK driving circuit export two groups of complementary PWMA signals and PWMB signal, control two-way metal-oxide-semiconductor
Complementary duty；The BOOST booster circuit is operable with boost mode or direct mode operation, and BOOST booster circuit includes prime filter
Wave circuit, third metal-oxide-semiconductor MOSFET3, the second diode D2With rear class filtering circuit；The drain electrode of third metal-oxide-semiconductor MOSFET3 is with before
Grade filter circuit output end and the second diode D2Anode electrical connection, the second diode D2Cathode is electrically connected with rear class filtering circuit；
The source electrode of third metal-oxide-semiconductor MOSFET3 is grounded；The grid of third metal-oxide-semiconductor MOSFET3 is electrically connected with BOOST driving circuit,
BOOST driving circuit exports PWMC signal, control third metal-oxide-semiconductor MOSFET3 work.
Preferably, the BUCK reduction voltage circuit works in direct mode operation, and BOOST booster circuit works in boosting mould
Formula, specifically: when input voltage VIN is less than scheduled output voltage VoWhen, BUCK reduction voltage circuit works in direct mode operation, BUCK
The PWMA signal of driving circuit output and the duty ratio of PWMB signal are maximum value, and input voltage VIN voltage value is equal to the second electricity
Feel L2Output end CY1Voltage value；BOOST booster circuit works in boost mode, so that rear class filtering circuit output end CY2Voltage
Value stablizes the voltage value V in settingo。
Preferably, the BUCK reduction voltage circuit works in decompression mode, and BOOST booster circuit work in it is straight-through
Mode, specifically: when input voltage VIN is greater than scheduled output voltage VoWhen, BUCK reduction voltage circuit is decompression mode, will be exported
Voltage stabilization is in voltage value Vo；The control signal dutyfactor of BOOST driving circuit output is maximum, the work of BOOST booster circuit
In direct mode operation, the second inductance L2Output end CY1Voltage value is equal to rear class filtering circuit output end CY2Voltage value.
Preferably, the second inductance L2Output end CY1For the Voltage Feedback point of BUCK reduction voltage circuit, BUCK driving electricity
Road is according to output end CY1Voltage output value, adjust PWMA signal and PWMB signal duty ratio.
Preferably, the rear class filtering circuit output end CY2For the Voltage Feedback point of BOOST booster circuit, BOOST is driven
Circuit is moved according to output end CY2Voltage output value, adjust PWMC signal duty ratio.
Preferably, which further includes self-start circuit, and self-start circuit is BUCK driving electricity in powered on moment
Road and BOOST drive circuitry, as BOOST booster circuit output end CY2After voltage value is stablized, pass through output end CY2For BUCK
Driving circuit and BOOST drive circuitry.
Preferably, the self-start circuit includes triode NPN1, zener diode D7, the 5th resistance R38, the 8th electricity
Hold C28, first switch diode D4With second switch diode D6, triode NPN1Collector and power on signal ViElectrical connection,
Triode NPN1Base stage and the 5th resistance R38, the 8th capacitor C28With zener diode D7Cathode electrical connection, triode NPN1
Base stage and collector between bridge the 5th resistance R38, triode NPN1Emitter and first switch diode D4Anode electricity
Connection, first switch diode D4Cathode and second switch diode D6Cathode be electrically connected with the power end VCC of driving circuit
It connects, second switch diode D6Anode through BUCK voltage regulator circuit and BOOST booster circuit output end CY2Electrical connection.
Preferably, the prime filter circuit includes first capacitor group and third inductance L3, first capacitor group includes simultaneously
Join the second capacitor C of connection1, third capacitor C2With the 4th capacitor C3, first capacitor group input terminal and the second inductance L2Output end CY1
Electrical connection, first capacitor group output end and third inductance L3Input terminal electrical connection.
Preferably, the rear class filtering circuit is the second capacitance group, and the second capacitance group includes the 5th electricity being connected in parallel
Hold C24, the 6th capacitor C25With the 7th capacitor C26, the second capacitance group input terminal and the second diode D2Cathode electrical connection, the second electricity
Appearance group output end CY2It is electrically connected with load.
The present invention having the beneficial effect that compared with prior art
1) BUCK reduction voltage circuit is adopted with BOOST booster circuit and is connected serially, by controlling BUCK reduction voltage circuit work
Make in direct mode operation and control BOOST booster circuit works in boost mode, pressure stabilizing control is carried out to input voltage VIN；Or
Control BUCK reduction voltage circuit works in decompression mode and control BOOST booster circuit works in direct mode operation, to input voltage VIN
Pressure stabilizing control is carried out, in control process, it is only necessary to control the duty ratio of pwm signal, handoff delay be not present, even if input voltage
Variation than it is very fast when, phenomenon that output voltage will not be caused unstable；
2) BUCK reduction voltage circuit passes through two groups of complementary pwm signal controls, i.e., within a duty cycle, each metal-oxide-semiconductor
There is the time no more than half to there is electric current to pass through, reduces the current stress of each metal-oxide-semiconductor, reduce the temperature rise on metal-oxide-semiconductor；
3) the Voltage Feedback point for passing through BUCK reduction voltage circuit, adjusts the duty ratio of PWMA signal and PWMB signal, thus surely
Set output terminal CY1Voltage value；By the Voltage Feedback point of BOOST booster circuit, the duty ratio of PWMC signal is adjusted, thus surely
Set output terminal CY2Voltage value；
4) it is equipped with power supply circuit self-start circuit, in powered on moment, self-start circuit starting is drive circuitry, to
Output end CY2After voltage value is stablized, by output end CY2For drive circuitry, guarantee to provide stable power supply electricity for driving circuit
Source, it is ensured that the stability of system operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of controlling circuit of voltage regulation of the present invention；
Fig. 2 is the connection schematic diagram of BUCK reduction voltage circuit and BUCK driving circuit；
Fig. 3 is the connection schematic diagram of BOOST booster circuit and BOOST driving circuit；
Fig. 4 is the schematic diagram of self-start circuit.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.
Embodiment 1
Referring to Fig. 1, a kind of controlling circuit of voltage regulation of wireless power supply system, the controlling circuit of voltage regulation input terminal and wireless receiving
The output end at end is electrically connected, and realizes that radio energy transmission system receiving end, the controlling circuit of voltage regulation includes filtering from pressure stabilizing
Circuit, BUCK reduction voltage circuit and BOOST booster circuit, BUCK reduction voltage circuit are adopted with BOOST booster circuit and are connected serially.
Filter circuit input terminal is electrically connected with wireless power transmission receiving end, filter circuit output end and BUCK reduction voltage circuit
Input terminal electrical connection.Filter circuit is used by the first inductance L1With first capacitor C5The low-pass filter of composition, wireless receiving end warp
Output voltage V is obtained after high-frequency rectificationrect, output voltage VrectThrough the first inductance L1With first capacitor C5Post filtering is BUCK drop
The input voltage VIN of volt circuit.Since the output of radio energy transmission system receiving end is from electromagnetic field, input voltage VIN
Fluctuation range it is larger, the output voltage V of controlling circuit of voltage regulation may be far longer thano, or far smaller than controlling circuit of voltage regulation
Output voltage Vo, it is therefore desirable to wide scope pressure stabilizing control is carried out to input voltage VIN.
BUCK reduction voltage circuit includes the metal-oxide-semiconductor of two-way parallel connection, the first storage stream diode D1With the second inductance L2。
The drain electrode of first metal-oxide-semiconductor MOSFET1 and the second metal-oxide-semiconductor MOSFET2 are electrically connected with input voltage VIN.First MOS
The source electrode of pipe MOSFET1 is electrically connected with the source electrode of the second metal-oxide-semiconductor MOSFET2.The source electrode and the first MOS of first metal-oxide-semiconductor MOSFET1
First resistor R is bridged between the grid of pipe MOSFET11；The source electrode of second metal-oxide-semiconductor MOSFET2 and the second metal-oxide-semiconductor MOSFET2's
Second resistance R is bridged between grid2。
The grid of the grid of first metal-oxide-semiconductor MOSFET1 and the second metal-oxide-semiconductor MOSFET2 are exported with BUCK driving circuit respectively
PWMA signal and PWMB signal electrical connection；PWMA signal and PWMB signal are two groups of complementary control signals, are respectively used to control
Make the grid voltage of the first metal-oxide-semiconductor MOSFET1 and the second metal-oxide-semiconductor MOSFET2, the first metal-oxide-semiconductor MOSFET1 and the second metal-oxide-semiconductor
The maximum duty cycle of the every way switch work of MOSFET2 is 50%, i.e. the first metal-oxide-semiconductor MOSFET1 and the second metal-oxide-semiconductor MOSFET2 two
Way switch timesharing complementary duty, i.e., within a duty cycle, each pipe has the time no more than half to have electric current to pass through, and reduces
The current stress of each metal-oxide-semiconductor reduces the temperature on metal-oxide-semiconductor.
First stores stream diode D1Cathode and the first metal-oxide-semiconductor MOSFET1 source electrode and the second inductance L2Input terminal be electrically connected
It connects；First stores stream diode D1Plus earth, the second inductance L2Output end CY1It is electrically connected with BOOST booster circuit input terminal.
BOOST booster circuit includes prime filter circuit, third metal-oxide-semiconductor MOSFET3, the second diode D2And rear class filtering
Circuit.
Prime filter circuit includes first capacitor group and third inductance L3, first capacitor group includes the second electricity being connected in parallel
Hold C1, third capacitor C2With the 4th capacitor C3, first capacitor group input terminal and the second inductance L2Output end CY1Electrical connection, the first electricity
Appearance group output end and third inductance L3Input terminal electrical connection.
The drain electrode of third metal-oxide-semiconductor MOSFET3 and third inductance L3Output end and the second diode D2Anode electrical connection；Third
The source electrode of metal-oxide-semiconductor MOSFET3 is grounded；The grid and 3rd resistor R of third metal-oxide-semiconductor MOSFET33With the 4th resistance R4Electrical connection, the
The grid of three metal-oxide-semiconductor MOSFET3 is through 3rd resistor R3It is electrically connected with the PWMC signal of BOOST driving circuit output, third metal-oxide-semiconductor
The grid of MOSFET3 is through the 4th resistance R4Ground connection.
Rear class filtering circuit is the second capacitance group, and the second capacitance group includes the 5th capacitor C being connected in parallel24, the 6th capacitor
C25With the 7th capacitor C26, the second capacitance group input terminal and the second diode D2Cathode electrical connection, the second capacitance group output end CY2With
Load electrical connection.
Circuit in Fig. 1, from input voltage VIN to the second inductance L2Output end CY1For BUCK reduction voltage circuit；From the second inductance
L2Output end CY1To the second capacitance group output end CY2For BOOST booster circuit.
When input voltage VIN is greater than scheduled output voltage VoWhen, the BUCK reduction voltage circuit of prime plays antihypertensive effect, will
Output voltage stabilization is in voltage value Vo；The PWMC signal dutyfactor of BOOST driving circuit output is maximum value, and maximum value is
100%, the BOOST booster circuit of rear class works in direct mode operation, output end CY1Voltage value approximation is directly equal to output end CY2Electricity
Pressure value.
When input voltage VIN is less than scheduled output voltage VoWhen, the BUCK reduction voltage circuit of prime works in direct mode operation,
The PWMA signal of BUCK driving circuit output and the duty ratio of PWMB signal are maximum, and input voltage VIN voltage value is approximately equal to
Output end CY1Voltage value；The BOOST booster circuit of rear class works in pressure-increasning state, so that output end CY2Voltage value stabilization is being set
Fixed voltage value Vo。
The control circuit of BUCK reduction voltage circuit and BOOST booster circuit is all made of pulse transformer.
Referring to fig. 2, the pwm control signal of BUCK driving circuit output two-way complementation, respectively PWMA signal and PWMB letter
Number, two groups of pwm control signal timesharing complementation control first metal-oxide-semiconductor MOSFET1 and the second metal-oxide-semiconductor MOSFET2 take turns to operate, it is ensured that
BUCK reduction voltage circuit works in normal condition.Wherein, output end CY1As the Voltage Feedback point of BUCK reduction voltage circuit, BUCK is driven
Dynamic circuit can be according to output end CY1Voltage output value, adjust PWMA signal and PWMB signal duty ratio, thus stablize output
Hold CY1Voltage value.
When input voltage VIN is less than scheduled output voltage VoWhen, BUCK driving circuit is exported according to BUCK reduction voltage circuit
Hold CY1Feedback voltage level, adjust PWMA signal and PWMB signal duty ratio, achieve the purpose that surely to put output voltage；When defeated
Enter voltage VIN less than scheduled output voltage VoWhen, BUCK driving circuit controls the PWMA signal and PWMB of BUCK reduction voltage circuit
The duty ratio of signal is 50%, so that BUCK reduction voltage circuit is in pass-through state, without reduction regulation.
Referring to Fig. 3, BOOST driving circuit exports pwm control signal all the way, is PWMC signal, and PWMC signal controls third
Metal-oxide-semiconductor MOSFET3 work.Wherein, output end CY2As the Voltage Feedback point of BOOST booster circuit, BOOST driving circuit root
According to output end CY2Voltage output value, adjust PWMC signal duty ratio, thus stablize output end CY2Voltage value.
When input voltage VIN is greater than scheduled output voltage VoWhen, BOOST driving circuit controls BOOST booster circuit
The duty ratio of PWMC signal is maximum, so that BOOST booster circuit works in pass-through state, is adjusted without boosting；When defeated
Enter voltage VIN less than scheduled output voltage VoWhen, BOOST driving circuit is according to BOOST booster circuit output end CY2Feedback
Voltage value adjusts the duty ratio of PWMC signal, achievees the purpose that surely to put output voltage.
For the normal work for guaranteeing BUCK reduction voltage circuit and BOOST booster circuit, BUCK driving circuit and BOOST need to be driven
The power supply circuit of dynamic circuit provides stabilized power supply.For convenience of description, BUCK driving circuit and BOOST driving circuit system are hereinafter referred to as
The power supply circuit hereinafter referred to as power supply circuit of driving circuit, BUCK driving circuit and BOOST driving circuit, BUCK driving circuit
With the self-start circuit of the power supply circuit of BOOST driving circuit, hereinafter referred to as self-start circuit.
Due to BOOST booster circuit output end CY2For stable voltage value, foregoing circuit can be protected in compared with wide input range
Hold output end CY2The stabilization of voltage value passes through output end CY as a result,2Stable power supply can be provided to driving circuit.
Right side power supply circuit part referring to fig. 4, BOOST booster circuit output end CY2Pressure stabilizing is carried out through BUCK voltage regulator circuit,
Fixed direct current supply voltage P is exported, which can be 15V, 5V or 3.3V etc., provide by power supply circuit for driving circuit
Stable power-supplying power supply.
Left side self-start circuit referring to fig. 4, including triode NPN1, zener diode D7, the 5th resistance R38, the 8th capacitor
C28, first switch diode D4With second switch diode D6。
Triode NPN1Collector and power on signal ViElectrical connection.Triode NPN1Base stage and the 5th resistance R38, the 8th
Capacitor C28With zener diode D7Cathode electrical connection, triode NPN1Base stage and collector between bridge the 5th resistance R38,
Zener diode D7Anode and the 8th capacitor C28It is ground connection.Triode NPN1Emitter and first switch diode D4's
Anode electrical connection, first switch diode D4Cathode and second switch diode D6Cathode with the power end of driving circuit
VCC electrical connection, second switch diode D6Anode be electrically connected with direct current supply voltage P.
The course of work of self-start circuit are as follows:
Triode NPN1With zener diode D7Self-start circuit is constituted, in powered on moment, triode NPN1It connects, power supply
Signal is through first switch diode D4It powers for the power end VCC of driving circuit.
As BOOST booster circuit output end CY2When for stable voltage value, i.e. output end CY1It is depressured through BUCK voltage regulator circuit
Stable direct current supply voltage P is obtained afterwards, and is flowed supply voltage P voltage value outline and be higher than triode NPN1Emitter unlatching
Voltage value, at this point, first switch diode D4It closes, second switch diode D6Conducting, the power supply of driving circuit switch to
By output end CY2Power supply, provides steady operation power supply for driving circuit.
In above-mentioned power supply process, due to output end CY2It need to can be mentioned under the premise of itself reaching stable for driving circuit
For regulated power, this is just needed in powered on moment, by triode NPN1With zener diode D7The self-start circuit of composition is first drive
Dynamic circuit power supply, end CY to be output2After voltage value is stablized, by output end CY2For drive circuitry, guarantee to mention for driving circuit
For stable power supply, it is ensured that the stability of system operation.
Claims (7)
1. a kind of controlling circuit of voltage regulation of wireless power supply system, is electrically connected with the output end at wireless receiving end, including filter circuit,
BUCK reduction voltage circuit and BOOST booster circuit, BUCK reduction voltage circuit are adopted with BOOST booster circuit and are connected serially, special
Sign is:
The BUCK reduction voltage circuit is operable with direct mode operation or decompression mode, and BUCK reduction voltage circuit includes the MOS of two-way parallel connection
Pipe, the first storage stream diode and the second inductance, the drain electrode of two-way metal-oxide-semiconductor are electrically connected with filter circuit output end, two-way metal-oxide-semiconductor
Source electrode with first store stream diode and the second inductance be electrically connected, the grid of two-way metal-oxide-semiconductor is electrically connected with BUCK driving circuit,
BUCK driving circuit exports two groups of complementary PWMA signals and PWMB signal, controls two-way metal-oxide-semiconductor complementary duty；
The BOOST booster circuit is operable with boost mode or direct mode operation, and BOOST booster circuit includes prime filtered electrical
Road, third metal-oxide-semiconductor MOSFET3, the second diode and rear class filtering circuit；The drain electrode of third metal-oxide-semiconductor MOSFET3 and prime filter
Circuit output end and the electrical connection of the second diode anode, the second diode cathode are electrically connected with rear class filtering circuit；Third metal-oxide-semiconductor
The source electrode of MOSFET3 is grounded；The grid of third metal-oxide-semiconductor MOSFET3 is electrically connected with BOOST driving circuit, BOOST driving circuit
Export PWMC signal, control third metal-oxide-semiconductor MOSFET3 work；
The control circuit further includes self-start circuit, and self-start circuit is that BUCK driving circuit and BOOST drive in powered on moment
Circuit power supply is that BUCK driving circuit and BOOST drive by output end after BOOST booster circuit output end voltage value is stablized
Dynamic circuit power supply；
The self-start circuit includes triode, zener diode, the 5th resistance, the 8th capacitor, first switch diode and
The collector of two switching diodes, triode is electrically connected with power on signal, the base stage of triode and the 5th resistance, the 8th capacitor and
The cathode of zener diode is electrically connected, and bridges the 5th resistance between the base stage and collector of triode, the emitter of triode with
The anode of first switch diode is electrically connected, and the cathode of the cathode of first switch diode and second switch diode is and BUCK
The power end VCC of driving circuit and BOOST driving circuit electrical connection, the anode of second switch diode through BUCK voltage regulator circuit with
The electrical connection of BOOST booster circuit output end.
2. a kind of controlling circuit of voltage regulation of wireless power supply system according to claim 1, it is characterised in that: the BUCK drop
Volt circuit works in direct mode operation, and BOOST booster circuit works in boost mode, specifically: when input voltage VIN is less than in advance
When fixed output voltage, the work of BUCK reduction voltage circuit is in direct mode operation, the PWMA signal and PWMB letter of the output of BUCK driving circuit
Number duty ratio be maximum value, input voltage VIN voltage value be equal to the second inductance output end voltage value；BOOST booster circuit work
Make in boost mode, so that rear class filtering circuit output terminal voltage value stablizes the voltage value in setting.
3. a kind of controlling circuit of voltage regulation of wireless power supply system according to claim 1, it is characterised in that: the BUCK drop
Volt circuit works in decompression mode, and BOOST booster circuit works in direct mode operation, specifically: when input voltage VIN is greater than in advance
When fixed output voltage, BUCK reduction voltage circuit is decompression mode, by output voltage stabilization in voltage value；BOOST driving circuit is defeated
Control signal dutyfactor out is maximum, and BOOST booster circuit works in direct mode operation, and the second inductance output end voltage value is equal to
Rear class filtering circuit output terminal voltage value.
4. a kind of controlling circuit of voltage regulation of wireless power supply system according to claim 1, it is characterised in that: second electricity
Feel the Voltage Feedback point that output end is BUCK reduction voltage circuit, BUCK driving circuit is adjusted according to the voltage output value of output end
The duty ratio of PWMA signal and PWMB signal.
5. a kind of controlling circuit of voltage regulation of wireless power supply system according to claim 1, it is characterised in that: the rear class filter
Wave circuit output end is the Voltage Feedback point of BOOST booster circuit, BOOST driving circuit according to the voltage output value of output end,
Adjust the duty ratio of PWMC signal.
6. a kind of controlling circuit of voltage regulation of wireless power supply system according to claim 1, it is characterised in that: the prime filter
Wave circuit includes first capacitor group and third inductance, and first capacitor group includes the second capacitor being connected in parallel, third capacitor and
Four capacitors, first capacitor group input terminal are electrically connected with the second inductance output end, and first capacitor group output end and third inductance input
End electrical connection.
7. a kind of controlling circuit of voltage regulation of wireless power supply system according to claim 1, it is characterised in that: the rear class filter
Wave circuit is the second capacitance group, and the second capacitance group includes the 5th capacitor, the 6th capacitor and the 7th capacitor being connected in parallel, the second electricity
Appearance group input terminal is electrically connected with the second diode cathode, and the second capacitance group output end is electrically connected with load.
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| CN201610084027.2A CN105515382B (en) | 2016-02-06 | 2016-02-06 | A kind of controlling circuit of voltage regulation of wireless power supply system |
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| MX2019012162A (en) * | 2017-04-10 | 2019-11-21 | Vertiv Energy Systems Inc | Dc-dc converters having bullet terminals. |
| CN107959420A (en) * | 2017-12-26 | 2018-04-24 | 深圳市恒浩伟业科技有限公司 | A kind of step-up/step-down circuit |
| CN108599568B (en) * | 2018-05-10 | 2019-09-13 | 深圳市思远半导体有限公司 | A kind of charge-discharge circuit and multiport input-output system |
| CN110311553B (en) * | 2019-07-17 | 2021-02-19 | 深圳市智微智能科技股份有限公司 | Self-adaptive voltage transformation circuit and power module |
| CN112994451A (en) * | 2021-03-04 | 2021-06-18 | 西安微电子技术研究所 | Pre-stabilized voltage output circuit capable of realizing boosting, maintaining and reducing voltage and control method |
| CN115566896A (en) * | 2022-11-03 | 2023-01-03 | 广东卡沃罗氢科技有限公司 | Main control circuit of decanter and decanter |
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