WO2018107621A1 - Circuit de conversion de tension sinusoïdale intelligent basé sur un pont complet indirect pfc - Google Patents

Circuit de conversion de tension sinusoïdale intelligent basé sur un pont complet indirect pfc Download PDF

Info

Publication number
WO2018107621A1
WO2018107621A1 PCT/CN2017/079187 CN2017079187W WO2018107621A1 WO 2018107621 A1 WO2018107621 A1 WO 2018107621A1 CN 2017079187 W CN2017079187 W CN 2017079187W WO 2018107621 A1 WO2018107621 A1 WO 2018107621A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
switching transistor
flyback
pfc
conversion circuit
Prior art date
Application number
PCT/CN2017/079187
Other languages
English (en)
Chinese (zh)
Inventor
李金龙
Original Assignee
广东百事泰电子商务股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东百事泰电子商务股份有限公司 filed Critical 广东百事泰电子商务股份有限公司
Publication of WO2018107621A1 publication Critical patent/WO2018107621A1/fr

Links

Images

Classifications

    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • H02M1/4225—Arrangements for improving power factor of AC input using a non-isolated boost converter
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/12—Arrangements for reducing harmonics from ac input or output
    • 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
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal 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
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters
    • H02M7/539—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters with automatic control of output wave form or frequency
    • H02M7/5395—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Definitions

  • the invention relates to a voltage conversion circuit, in particular to an intelligent sine wave voltage conversion circuit based on a PFC flyback full bridge.
  • the intelligent buck-boost conversion device from AC to AC is also called a travel plug.
  • the sine wave voltage conversion circuit is a key circuit thereof, and is a circuit capable of realizing AC-AC conversion. It can realize the function of buck-boost and stabilize voltage and frequency in AC-AC conversion.
  • most of the current AC-AC portable device market is a non-isolated topology circuit with low PF value, low output voltage quality, and poor safety and reliability.
  • voltage conversion is usually achieved by means of PWM signals in conjunction with switching tube control, which results in certain high frequency harmonics in the circuit. The presence of these high frequency signals will affect the quality of the output voltage. Therefore, it is difficult to meet the conversion requirements.
  • the technical problem to be solved by the present invention is to provide an intelligent sinusoidal voltage conversion circuit based on a PFC flyback full bridge for improving the PF value of the voltage conversion device and filtering out the circuit in the circuit. High frequency pulses to improve output voltage quality.
  • the present invention adopts the following technical solutions.
  • An intelligent sinusoidal voltage conversion circuit based on a PFC flyback full bridge includes: an input unit for outputting a DC voltage; a PFC boost unit connected to an output end of the input unit for the input unit The output voltage is boosted and converted; a flyback isolating converter unit includes a first switching transistor, a transformer, a first rectifying diode, a filter inductor and a first filter capacitor, and the first end of the transformer primary winding is connected to An output end of the PFC boosting unit, a second end of the primary winding of the transformer is connected to a drain of the first switching tube, a source of the first switching tube is connected to a front end, and a gate of the first switching tube
  • the first end of the secondary winding of the transformer is connected to the anode of the first rectifier diode, the cathode of the first rectifier diode is connected to the front end of the filter inductor, and the back end of the filter inductor passes through the first
  • the filter capacitor is connected to the back
  • the flyback isolation converter unit further includes a first resistor, a first capacitor, and a second rectifier diode
  • the first resistor is connected between the first end of the secondary winding of the transformer and the cathode of the second rectifier diode, and the anode of the second rectifier diode is connected to the second end of the secondary winding of the transformer, the first The capacitor is connected in parallel to the first resistor.
  • the flyback isolation converter unit further includes a second resistor and a pull-down resistor, the second resistor is connected between the source and the front end of the first switch tube, and the pull-down resistor is connected to the first switch Between the gate and the source of the tube.
  • the input unit comprises a socket, an insurance, a lightning protection resistor, a common mode suppression inductor, a safety capacitor and a rectifier bridge, wherein the fuse is connected to a neutral or a live line of the socket, and the common mode suppresses the inductance.
  • the front end is connected in parallel to the socket, the lightning protection resistor is connected in parallel to the front end of the common mode suppression inductor, and the input terminals of the safety capacitor and the rectifier bridge are both connected in parallel with the rear end of the common mode suppression inductor, and the output ends of the rectifier bridge are connected in parallel
  • the second filter capacitor is connected in parallel.
  • the PFC boosting unit includes a boosting inductor, a third switching transistor, a first freewheeling diode, and a second electrolytic capacitor, and a front end of the boosting inductor is connected to an output end of the input unit, and the boosting The back end of the inductor is connected to the drain of the third switch tube, the source of the third switch tube is connected to the front end, and the gate of the third switch tube is used to access a PWM control signal, the third switch a drain of the tube is connected to the anode of the first freewheeling diode, a cathode of the first freewheeling diode is used as an output end of the PFC boosting unit, and a cathode of the first freewheeling diode is connected to a positive pole of the second electrolytic capacitor, and a second The negative electrode of the electrolytic capacitor is connected to the front end.
  • the method further includes an MCU control unit, a gate of the first switch tube and a gate of the third switch tube are respectively connected to the MCU control unit, and the MCU control unit is configured to respectively output a PWM signal to the first switch tube And a third switching tube to control the on-off state of the first switching tube and the third switching tube.
  • the MCU control unit includes a single chip microcomputer and peripheral circuits thereof.
  • the method further includes an AC sampling unit connected between the input end of the input unit and the MCU control unit, wherein the AC sampling unit is configured to collect the voltage of the AC side of the input unit and feed back to the MCU control unit.
  • a DC voltage sampling unit is further included, the DC voltage sampling unit includes a second sampling resistor and a third sampling resistor connected in series, and a front end of the second sampling resistor is connected to an output of the flyback isolation converter unit.
  • the back end of the third sampling resistor is connected to the MCU control unit, and the MCU control unit collects the electrical signal outputted by the flyback isolation converter unit by the second sampling resistor and the third sampling resistor.
  • the inverter inverter unit comprises an inverter bridge composed of a fourth switch tube, a fifth switch tube, a sixth switch tube and a seventh switch tube, and a gate and a fifth switch of the fourth switch tube a gate of the tube, a gate of the sixth switch tube, and a gate of the seventh switch tube are respectively connected to the MCU control unit, and the fourth switch tube, the fifth switch tube, and the sixth switch tube are controlled by the MCU control unit And the seventh switch tube is turned on or off to enable the inverter inverting unit to output an alternating voltage.
  • the invention discloses an intelligent sinusoidal voltage conversion circuit based on PFC flyback full bridge, which utilizes input rectification filter
  • the wave unit rectifies and filters the grid voltage to output a pulsating DC voltage, and then uses a PFC boosting unit to boost the pulsating DC voltage.
  • the PWM signal is applied to the gate of the first switching transistor. pole.
  • the primary winding of the transformer is discharged by the magnetic core to the secondary winding, and then rectified by the first rectifier diode and then transmitted to the filter inductor, and the high-frequency harmonics in the circuit are filtered by the filter inductor to obtain a half-wave pulsating direct current.
  • the first CBB capacitor is used for filtering, and the filtered DC power is output to the inverter inverting unit, and the inverter is inverted by the inverter inverting unit to output AC power.
  • the present invention realizes the isolated transmission of voltage. Effectively improve the PF value of the boost/buck converter. At the same time, by filtering out the high-frequency harmonics in the circuit, the output voltage quality is greatly improved, making the voltage conversion process more secure and reliable.
  • FIG. 1 is a circuit schematic diagram of a sinusoidal voltage conversion circuit of the present invention.
  • FIG. 2 is a circuit schematic diagram of an AC sampling unit in a preferred embodiment of the present invention.
  • FIG. 3 is a circuit schematic diagram of an MCU control unit in a preferred embodiment of the present invention.
  • the invention discloses an intelligent sinusoidal voltage conversion circuit based on a PFC flyback full bridge, which is combined with FIG. 1 to FIG. 3 and includes:
  • a PFC boosting unit 20 is connected to the output end of the input unit 10 for boosting the output voltage of the input unit 10;
  • a flyback isolating converter unit 30 includes a first switching transistor Q6, a transformer T1, a first rectifier diode D5, a filter inductor L3, and a first filter capacitor C3. The first end of the primary winding of the transformer T1 is connected to the PFC.
  • the output end of the boosting unit 20 the second end of the primary winding of the transformer T1 is connected to the drain of the first switching transistor Q6, the source of the first switching transistor Q6 is connected to the front end, and the first switching tube
  • the gate of Q6 is used to access the PWM signal
  • the first end of the secondary winding of the transformer T1 is connected to the anode of the first rectifier diode D5
  • the cathode of the first rectifier diode D5 is connected to the front end of the filter inductor L3.
  • the rear end of the filter inductor L3 is connected to the back end through a first filter capacitor C3, the second end of the transformer T1 secondary winding is connected to the back end, and the rear end of the filter inductor L3 is used as the flyback isolation converter unit 30.
  • An inverter inverting unit 60 is connected to the output end of the flyback isolating converter unit 30 for inverting and converting the output voltage of the flyback isolating converter unit 30 to output an alternating current.
  • the input rectification and filtering unit 10 rectifies and filters the grid voltage to output a pulsating DC voltage, and then uses the PFC boosting unit 20 to boost the pulsating DC voltage in the flyback isolation converter unit.
  • the PWM signal is applied to the gate of the first switching transistor Q6.
  • the first switching transistor Q6 When the first switching transistor Q6 is turned on, the primary winding of the transformer T1 and the first switching transistor Q6 form a loop to the front end and generate a current.
  • the primary winding of the transformer T1 is turned on and starts to store energy, when the first switch When the tube Q6 is turned off, the primary winding of the transformer T1 is discharged by the magnetic core to the secondary winding, and then rectified by the first rectifier diode D5 and transmitted to the filter inductor L3, and the high frequency in the circuit is filtered by the filter inductor L3. Harmonic, obtaining half-wave pulsating direct current, then filtering by using the first CBB capacitor C3, and outputting the filtered half-wave pulsating direct current to the inverter inverting unit 60, and performing inverter inversion by the inverter inverting unit 60 After outputting AC power.
  • the present invention realizes voltage isolation transmission, which can effectively improve the rise.
  • the PF value of the voltage/buck converter device at the same time, by filtering out the high frequency harmonics in the circuit, the output voltage quality is greatly improved, and the voltage conversion process is more safe and reliable.
  • the flyback isolation converter unit 30 further includes a first resistor R26, a first capacitor C5 and a second rectifier diode D6.
  • the first resistor R26 is connected to the first winding of the transformer T1.
  • the anode of the second rectifier diode D6 is connected to the second end of the secondary winding of the transformer T1, and the first capacitor C5 is connected in parallel to the first resistor R26.
  • C5, R26 and D6 form a spike absorption circuit for absorbing the spike voltage generated by the leakage inductance.
  • the flyback isolation converter unit 30 further includes a second resistor R2B and a pull-down resistor R25.
  • the second resistor R2B is connected between the source and the front end of the first switch transistor Q6.
  • the pull-down resistor R25 is connected between the gate and the source of the first switching transistor Q6.
  • R25 is a pull-down resistor of the first switching transistor Q6 for preventing mis-conduction.
  • the input unit 10 includes a socket, a fuse F2, a lightning protection resistor RV1, a common mode suppression inductor L1, a safety capacitor CX1, and a rectifier bridge DB1.
  • the fuse F2 is connected in series with the socket.
  • the front end of the common mode suppression inductor L1 is connected in parallel to the socket
  • the lightning protection resistor RV1 is connected in parallel to the front end of the common mode rejection inductor L1
  • the input terminals of the safety capacitor CX1 and the rectifier bridge DB1 are connected in parallel
  • the common mode suppresses the rear end of the inductor L1, and the output terminal of the rectifier bridge DB1 has a filter capacitor C1 connected in parallel.
  • the PFC boosting unit 20 includes a boosting inductor L2, a third switching transistor Q5, and a first continuation. a current diode D1 and a second electrolytic capacitor C2, the front end of the boosting inductor L2 is connected to the output end of the input unit 10, and the rear end of the boosting inductor L2 is connected to the drain of the third switching transistor Q5.
  • the source of the third switching transistor Q5 is connected to the front end, the gate of the third switching transistor Q5 is used to connect a PWM control signal, and the drain of the third switching transistor Q5 is connected to the anode of the first freewheeling diode D1.
  • the cathode of the first freewheeling diode D1 serves as an output end of the PFC boosting unit 20, and the cathode of the first freewheeling diode D1 is connected to the anode of the second electrolytic capacitor C2, and the cathode of the second electrolytic capacitor C2 is connected to the front end.
  • the PFC enters the boost mode when the AC input voltage is sampled to the AC voltage to increase the PF value of the AC-to-AC intelligent buck conversion topology circuit.
  • the specific boosting principle is as follows: When Q5 is turned on, the current on C1 forms a loop through the boost inductors L2 and Q5 to GND, and the boost inductor L2 stores energy; when Q5 is turned off, the boost inductor forms a specific input voltage. The much higher induced electromotive force, the induced electromotive force is rectified by the freewheeling tube D1 to form a unidirectional pulse voltage and then sent to the C2 capacitor for filtering and energy storage.
  • And Q5 is to increase or decrease the on-time of Q5 according to the input AC sine wave change taken by the control chip, so that the current and voltage phases are consistent to increase the PF value.
  • the control chip U1 detects that the input voltage is equal to or higher than the 230V grid voltage, the high frequency modulation circuit Q5MOS is turned off, and the rectified and filtered voltage is directly filtered and stored by the C2 capacitor through L2 and D1.
  • the embodiment further includes an MCU control unit 80.
  • the gates of the first switch tube Q6 and the gate of the third switch tube Q5 are respectively connected to the MCU control unit 80, and the MCU control unit 80 is used.
  • the PWM signal is respectively output to the first switching transistor Q6 and the third switching transistor Q5 to control the on-off state of the first switching transistor Q6 and the third switching transistor Q5.
  • the MCU control unit 80 includes a single chip U1 and its peripheral circuits.
  • the embodiment further includes an AC sampling unit 70, which is connected between the input end of the input unit 10 and the MCU control unit 80, and the AC sampling unit 70 is used for The voltage on the AC side of the input unit 10 is collected and fed back to the MCU control unit 80.
  • the AC sampling unit 70 includes an operational amplifier U9B. The two input ends of the operational amplifier U9B are respectively connected to the input end of the input unit 10 through a current limiting resistor, and the output end of the operational amplifier U9B is connected to MCU control unit 80.
  • a first sampling resistor R2A is connected between the source and the front end of the third switching transistor Q5, and the source of the third switching transistor Q5 is connected to the MCU control unit 80.
  • the first sampling resistor R2A causes the MCU control unit 80 to collect an electrical signal of the source of the third switching transistor Q5.
  • the embodiment further includes a DC voltage sampling unit 40, and the DC voltage sampling unit 40 includes a second sampling resistor R13 and a third sampling resistor R15 connected in series.
  • the front end of the second sampling resistor R13 is connected to the output end of the flyback isolation converter unit 30, and the rear end of the third sampling resistor R15 is connected to the MCU control unit 80 by the second sampling resistor R13 and Third sampling resistor R15 causes the MCU control unit 80 to acquire the electrical signal output by the flyback isolation converter unit 30.
  • the inverter inverting unit 60 includes an inverter bridge composed of a fourth switching transistor Q1, a fifth switching transistor Q2, a sixth switching transistor Q3, and a seventh switching transistor Q4, and the fourth switching transistor
  • the gate of Q1, the gate of the fifth switching transistor Q2, the gate of the sixth switching transistor Q3, and the gate of the seventh switching transistor Q4 are respectively connected to the MCU control unit 80, and are controlled by the MCU control unit 80.
  • the four switching transistors Q1, the fifth switching transistor Q2, the sixth switching transistor Q3, and the seventh switching transistor Q4 are turned on or off to cause the inverter inverting unit 60 to output an alternating voltage.
  • the C3 filtered half-wave pulsating DC voltage is supplied to the load via Q1, load, and Q4 to form a first sinusoidal half-cycle power frequency level; the second sinusoidal half-cycle power frequency
  • the level forms a loop through Q2, load, and Q3, thus forming a complete power frequency sine wave AC voltage on the load.
  • the PWM signal outputted by the control chip U1 is sent to the GATE poles of Q1, Q2, Q3, and Q4 by the PWM1H, PWM1L, PWM2H, and PWM2L through the driving circuit.
  • the phase and frequency in the inverter inverter circuit operate in accordance with the mode set in the control chip.
  • the present invention firstly has a high PF value, realizes isolation between the power grid and the output end, and has high safety.
  • the output voltage can be automatically adjusted in the input full voltage range, and the output is fixed.
  • Frequency again, the output voltage is pure sine wave output, and has an automatic shaping function for the AC voltage.
  • the present invention can also filter high frequency pulses in the circuit, thereby improving the quality of the output voltage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Rectifiers (AREA)

Abstract

Un circuit de conversion de tension sinusoïdale intelligent basé sur un pont complet indirect PFC comprend : une unité d'entrée (10) ; une unité d'amplification de tension PFC (20) ; une unité de convertisseur d'isolation indirecte (30), comprenant un premier transistor de commutation (Q6), un transformateur (T1), une première diode de redressement (D5), une bobine d'induction de filtre (L3), et un premier condensateur de filtre (C3), une première extrémité de l'enroulement côté primaire du transformateur (T1) étant connectée à une extrémité de sortie de l'unité d'amplification de tension PFC (20), une seconde extrémité de l'enroulement côté primaire du transformateur (T1) étant connectée à une électrode de drain du premier transistor de commutation (Q6), une électrode de source du premier transistor de commutation (Q6) étant connectée à une masse d'extrémité avant, une électrode de grille du premier transistor de commutation (Q6) accédant à un signal de modulation de largeur d'impulsions, une première extrémité d'un enroulement secondaire du transformateur (T1) étant connectée à une anode de la première diode de redressement (D5), la cathode de la première diode de redresseur (D5) étant connectée à l'extrémité avant de l'inducteur de filtre (L3), et l'extrémité arrière de la bobine d'induction de filtre (L3) étant une extrémité de sortie de l'unité de convertisseur d'isolation indirecte (30) ; et une unité d'inversion de phase (60), utilisée pour délivrer en sortie une puissance de courant alternatif après la réalisation d'une conversion inversée. Le circuit de conversion peut améliorer la valeur PF et améliorer la qualité de la tension de sortie.
PCT/CN2017/079187 2016-12-15 2017-04-01 Circuit de conversion de tension sinusoïdale intelligent basé sur un pont complet indirect pfc WO2018107621A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201611159566.4 2016-12-15
CN201611159566.4A CN106787792A (zh) 2016-12-15 2016-12-15 一种基于pfc反激全桥的智能型正弦波电压转换电路

Publications (1)

Publication Number Publication Date
WO2018107621A1 true WO2018107621A1 (fr) 2018-06-21

Family

ID=58889174

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/079187 WO2018107621A1 (fr) 2016-12-15 2017-04-01 Circuit de conversion de tension sinusoïdale intelligent basé sur un pont complet indirect pfc

Country Status (2)

Country Link
CN (1) CN106787792A (fr)
WO (1) WO2018107621A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108880289A (zh) * 2018-08-14 2018-11-23 广州易达包装设备有限公司 一种可调高压电场发生装置
CN109245515A (zh) * 2018-09-05 2019-01-18 广西师范大学 一种无桥pfc充电电路及其控制算法
CN110350809A (zh) * 2019-07-31 2019-10-18 清正源华（北京）科技有限公司 一种用于高速电主轴驱动器的隔离ac-dc电源
CN111830423A (zh) * 2020-06-24 2020-10-27 东风电驱动系统有限公司 一种隔离式高压采样电路
CN110350809B (zh) * 2019-07-31 2024-06-04 清正源华（北京）科技有限公司 一种用于高速电主轴驱动器的隔离ac-dc电源

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107875508A (zh) * 2017-11-02 2018-04-06 彭得保 一种智能理疗系统及其方法
CN108988666A (zh) * 2018-07-16 2018-12-11 黄奕奋 一种多周期分段接通电源电路
CN109245568B (zh) * 2018-09-12 2024-05-24 杭州海兴电力科技股份有限公司 一种交流转直流隔离开关电源电路
CN109362159B (zh) * 2018-12-25 2020-09-01 福州大学 一种具有漏感能量回收的低纹波led驱动电源
CN114884368A (zh) * 2022-05-23 2022-08-09 广州市因博电子科技有限公司 一种基于高压输入的开关电源电路

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6970364B2 (en) * 2002-03-08 2005-11-29 University Of Central Florida Low cost AC/DC converter with power factor correction
CN102064712A (zh) * 2010-12-24 2011-05-18 东南大学 一种基于简易pfc的电力电子变压器
CN102573213A (zh) * 2011-11-28 2012-07-11 宁波凯耀电器制造有限公司 一种led调光系统
CN103296904A (zh) * 2012-02-29 2013-09-11 黄煜梅 功率因数校正恒流控制器及控制方法
CN103716952A (zh) * 2013-09-17 2014-04-09 宁波凯耀电器制造有限公司 一种led开关电源及其控制方法
CN106208638A (zh) * 2015-04-30 2016-12-07 神华集团有限责任公司 电能转换装置及相应的电能管理连接系统
CN106787794A (zh) * 2016-12-15 2017-05-31 广东百事泰电子商务股份有限公司 一种基于pfc反激全桥的智能型修正波电压转换电路
CN206332617U (zh) * 2016-12-15 2017-07-14 广东百事泰电子商务股份有限公司 一种基于pfc反激全桥的智能型修正波电压转换电路

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6724152B2 (en) * 2002-07-19 2004-04-20 Donald K. Gladding Lighting control system with variable arc control including start-up circuit for providing a bias voltage supply
JP5481939B2 (ja) * 2009-05-29 2014-04-23 ソニー株式会社 電源装置
CN105006957A (zh) * 2015-08-14 2015-10-28 南京理工大学 一种单相交错反激逆变器输入电流脉动抑制的装置及方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6970364B2 (en) * 2002-03-08 2005-11-29 University Of Central Florida Low cost AC/DC converter with power factor correction
CN102064712A (zh) * 2010-12-24 2011-05-18 东南大学 一种基于简易pfc的电力电子变压器
CN102573213A (zh) * 2011-11-28 2012-07-11 宁波凯耀电器制造有限公司 一种led调光系统
CN103296904A (zh) * 2012-02-29 2013-09-11 黄煜梅 功率因数校正恒流控制器及控制方法
CN103716952A (zh) * 2013-09-17 2014-04-09 宁波凯耀电器制造有限公司 一种led开关电源及其控制方法
CN106208638A (zh) * 2015-04-30 2016-12-07 神华集团有限责任公司 电能转换装置及相应的电能管理连接系统
CN106787794A (zh) * 2016-12-15 2017-05-31 广东百事泰电子商务股份有限公司 一种基于pfc反激全桥的智能型修正波电压转换电路
CN206332617U (zh) * 2016-12-15 2017-07-14 广东百事泰电子商务股份有限公司 一种基于pfc反激全桥的智能型修正波电压转换电路

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108880289A (zh) * 2018-08-14 2018-11-23 广州易达包装设备有限公司 一种可调高压电场发生装置
CN108880289B (zh) * 2018-08-14 2024-06-07 广州易达包装设备有限公司 一种可调高压电场发生装置
CN109245515A (zh) * 2018-09-05 2019-01-18 广西师范大学 一种无桥pfc充电电路及其控制算法
CN109245515B (zh) * 2018-09-05 2023-09-26 深圳美盈达科技有限公司 一种无桥pfc充电电路及其控制算法
CN110350809A (zh) * 2019-07-31 2019-10-18 清正源华（北京）科技有限公司 一种用于高速电主轴驱动器的隔离ac-dc电源
CN110350809B (zh) * 2019-07-31 2024-06-04 清正源华（北京）科技有限公司 一种用于高速电主轴驱动器的隔离ac-dc电源
CN111830423A (zh) * 2020-06-24 2020-10-27 东风电驱动系统有限公司 一种隔离式高压采样电路

Also Published As

Publication number Publication date
CN106787792A (zh) 2017-05-31

Similar Documents

Publication Publication Date Title
WO2018107623A1 (fr) Circuit de conversion de tension d'onde sinusoïdale intelligent basé sur un double pont complet pfc
WO2018107619A1 (fr) Circuit de conversion de tension sinusoïdale en pont complet intelligent basé sur la résonance pfc et llc
WO2018129825A1 (fr) Circuit de conversion de tension à onde sinusoïdale en demi-pont intelligent fondé sur un convertisseur indirect entrelacé pfc
WO2018107600A1 (fr) Circuit de conversion de tension à onde modifiée intelligent basé sur un pont complet direct pfc
WO2018107621A1 (fr) Circuit de conversion de tension sinusoïdale intelligent basé sur un pont complet indirect pfc
WO2018120483A1 (fr) Circuit de conversion de tension sinusoïdale intelligent basé sur un pont complet à tranfert en retour entrelacé de pfc
WO2018107599A1 (fr) Circuit de conversion de tension sinusoïdale intelligent basé sur un pont complet direct pfc
WO2018107620A1 (fr) Circuit de conversion de tension d'onde de correction intelligente basé sur un pont complet indirect pfc
WO2018120523A1 (fr) Circuit de conversion de tension sinusoïdale intelligent à demi-pont de conversion de transfert direct de pfc
WO2018126557A1 (fr) Circuit de conversion de tension d'onde sinusoïdale en demi-pont intelligent basé sur la résonance llc et la pfc
WO2018126554A1 (fr) Circuit de conversion de tension d'onde de correction intelligente basé sur pfc, pont complet et demi-pont
WO2018107622A1 (fr) Circuit de conversion de tension d'onde de correction intelligent basé sur un double pont complet de pfc
WO2018129824A1 (fr) Circuit de conversion de tension à onde modifiée en demi-pont intelligent basé sur un transfert indirect entrelacé pfc
WO2018120482A1 (fr) Circuit de conversion de tension d'onde de correction intelligent basé sur un pont complet à transfert en retour étagé de pfc
WO2018126555A1 (fr) Circuit de conversion de tension sinusoïdale intelligent basé sur un pont complet et un demi-pont à pfc
WO2018126556A1 (fr) Circuit de conversion de tension d'ondes de correction de demi-ponts intelligents sur la base de résonances pfc et llc
CN206620058U (zh) 基于pfc与llc谐振的智能半桥正弦波电压转换电路
CN206364711U (zh) 基于pfc、全桥和半桥的智能型正弦波电压转换电路
WO2018129832A1 (fr) Circuit de conversion de tension à onde modifiée en demi-pont intelligent basé sur une pfc de vienne
CN208508805U (zh) 基于pfc与llc谐振的智能全桥正弦波电压转换电路
WO2018129835A1 (fr) Circuit de conversion de tension d'onde sinusoïdale en demi-pont intelligent à base de pfc de vienne
US10498249B1 (en) Smart sine wave step-down converter
WO2018120522A1 (fr) Circuit de conversion de tension d'onde sinusoïdale modifié intelligent basé sur un demi-pont de conversion directe pfc
CN206364710U (zh) 基于pfc与llc谐振的智能半桥修正波电压转换电路
CN206620057U (zh) 基于pfc、全桥和半桥的智能型修正波电压转换电路

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17881587

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17881587

Country of ref document: EP

Kind code of ref document: A1