CN106787800A - A kind of intelligent amendment wave voltage change-over circuit based on PFC normal shock half-bridges - Google Patents
A kind of intelligent amendment wave voltage change-over circuit based on PFC normal shock half-bridges Download PDFInfo
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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
- 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
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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
- 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
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
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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
- H02M3/22—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
- H02M3/3353—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 having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
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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
- 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
- H02M7/5387—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 in a bridge configuration
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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
- 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
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0038—Circuits or arrangements for suppressing, e.g. by masking incorrect turn-on or turn-off signals, e.g. due to current spikes in current mode control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- 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
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Abstract
本发明公开了一种基于PFC正激半桥的智能型修正波电压转换电路，其包括有：输入整流滤波单元；PFC升压单元；隔离型双管正激变换器，包括有第一开关管、第二开关管、第一二极管、第二二极管、第三二极管、第四二极管、变压器和滤波电感，第一开关管的源极连接于变压器初级绕组的第一端，变压器初级绕组的第二端连接第二开关管的漏极，第一开关管的栅极和第二开关管的栅极用于接入相同的PWM信号，变压器初级绕组的第一端连接于第三二极管的阳极，滤波电感的后端作为隔离型双管正激变换器的输出端正极，第四二极管的阳极作为隔离型双管正激变换器的输出端负极；逆变倒相单元。本发明可提高PF值和输出电压质量。
The invention discloses an intelligent modified wave voltage conversion circuit based on a PFC forward half-bridge, which includes: an input rectification filter unit; a PFC boost unit; an isolated double-tube forward converter, including a first switch tube , the second switching tube, the first diode, the second diode, the third diode, the fourth diode, the transformer and the filter inductor, the source of the first switching tube is connected to the first primary winding of the transformer end, the second end of the primary winding of the transformer is connected to the drain of the second switching tube, the grid of the first switching tube and the grid of the second switching tube are used to access the same PWM signal, and the first end of the primary winding of the transformer is connected to For the anode of the third diode, the rear end of the filter inductor is used as the positive pole of the output terminal of the isolated two-tube forward converter, and the anode of the fourth diode is used as the negative pole of the output terminal of the isolated two-tube forward converter; Inversion unit. The invention can improve PF value and output voltage quality.
Description
技术领域technical field
本发明涉及电压转换电路，尤其涉及一种基于PFC正激半桥的智能型修正波电压转换电路。The invention relates to a voltage conversion circuit, in particular to an intelligent modified wave voltage conversion circuit based on a PFC forward half-bridge.
背景技术Background technique
现有技术中，由AC转AC的智能升降压转换装置又被称为旅行插排，该装置中，修正波电压转换电路是其关键电路，是一种能实现AC-AC变换的电路，可以在AC-AC变换中实现升降压并稳定电压与频率的功能。然而目前的AC-AC便隽式设备市场大多数为非隔离型的拓扑电路，且PF值低、输出电压质量低、安全可靠性差。In the prior art, the intelligent buck-boost conversion device from AC to AC is also called a travel plug-in strip. In this device, the modified wave voltage conversion circuit is the key circuit, which is a circuit that can realize AC-AC conversion. In the AC-AC conversion, it can realize the functions of step-up and step-down and stabilize the voltage and frequency. However, most of the current AC-AC portable equipment market is a non-isolated topology circuit with low PF value, low output voltage quality, and poor safety and reliability.
发明内容Contents of the invention
本发明要解决的技术问题在于，针对现有技术的不足，提供一种可提高电压转换装置的PF值、可提高输出电压质量，并且安全可靠的基于PFC正激半桥的智能型修正波电压转换电路。The technical problem to be solved by the present invention is to provide a safe and reliable intelligent correction wave voltage based on PFC forward half-bridge that can improve the PF value of the voltage conversion device and improve the quality of the output voltage. conversion circuit.
为解决上述技术问题，本发明采用如下技术方案。In order to solve the above technical problems, the present invention adopts the following technical solutions.
一种基于PFC正激半桥的智能型修正波电压转换电路，其包括有：一输入整流滤波单元，其输入端连接电网，用于对电网电压进行整流和滤波；一PFC升压单元，连接于输入整流滤波单元的输出端，用于对输入整流滤波单元的输出电压进行升压转换；一隔离型双管正激变换器，包括有第一开关管、第二开关管、第一二极管、第二二极管、第三二极管、第四二极管、变压器和滤波电感，所述第一开关管的漏极连接于PFC升压单元的输出端，所述第一开关管的源极连接于变压器初级绕组的第一端，所述变压器初级绕组的第二端连接第二开关管的漏极，所述第二开关管的源极连接前端地，所述第一二极管的阴极连接于第一开关管的漏极，所述第一二极管的阳极连接于变压器初级绕组的第二端，所述第二二极管的阴极连接于变压器初级绕组的第一端，所述第二二极管的阳极连接于第二开关管的源极，所述第一开关管的栅极和第二开关管的栅极用于接入相同的PWM信号，所述变压器初级绕组的中间抽头连接于后端地，所述变压器初级绕组的第一端连接于第三二极管的阳极，所述第三二极管的阴极连接于滤波电感的前端，所述滤波电感的后端作为隔离型双管正激变换器的输出端正极，所述变压器初级绕组的第二端连接于第四二极管的阴极，所述第四二极管的阳极作为隔离型双管正激变换器的输出端负极；一逆变倒相单元，连接于隔离型双管正激变换器的输出端，所述逆变倒相单元用于对隔离型双管正激变换器的输出电压进行逆变转换后输出交流电。An intelligent modified wave voltage conversion circuit based on PFC forward half-bridge, which includes: an input rectification filter unit, the input end of which is connected to the grid for rectifying and filtering the grid voltage; a PFC boost unit connected to At the output end of the input rectification and filtering unit, it is used for step-up conversion of the output voltage of the input rectification and filtering unit; an isolated double-tube forward converter includes a first switch tube, a second switch tube, and a first diode tube, a second diode, a third diode, a fourth diode, a transformer and a filter inductor, the drain of the first switch tube is connected to the output end of the PFC step-up unit, and the first switch tube The source of the transformer is connected to the first end of the primary winding of the transformer, the second end of the primary winding of the transformer is connected to the drain of the second switch tube, the source of the second switch tube is connected to the front-end ground, and the first diode The cathode of the tube is connected to the drain of the first switching tube, the anode of the first diode is connected to the second end of the primary winding of the transformer, and the cathode of the second diode is connected to the first end of the primary winding of the transformer , the anode of the second diode is connected to the source of the second switching tube, the grid of the first switching tube and the grid of the second switching tube are used to access the same PWM signal, and the primary of the transformer The middle tap of the winding is connected to the rear end ground, the first end of the primary winding of the transformer is connected to the anode of the third diode, the cathode of the third diode is connected to the front end of the filter inductor, and the filter inductor The rear end is used as the positive pole of the output terminal of the isolated dual-transistor forward converter, the second end of the primary winding of the transformer is connected to the cathode of the fourth diode, and the anode of the fourth diode is used as the positive pole of the isolated dual-transistor forward converter. The negative pole of the output terminal of the excitation converter; an inverter and phase-inverting unit, which is connected to the output terminal of the isolated two-tube forward converter, and the inverter and phase-inverting unit is used for the output voltage of the isolated two-tube forward converter Output alternating current after inverter conversion.
优选地，所述输入整流滤波单元包括有插座、保险、防雷电阻、共模抑制电感、安规电容和整流桥，所述保险串接于插座的零线或火线上，所述共模抑制电感的前端并联于插座，所述防雷电阻并联于共模抑制电感的前端，所述安规电容和整流桥的输入端均并联于共模抑制电感的后端，所述整流桥的输出端并联有滤波电容。Preferably, the input rectifying and filtering unit includes a socket, an insurance, a lightning protection resistor, a common-mode suppression inductor, a safety capacitor and a rectifier bridge, the insurance is connected in series with the neutral wire or live wire of the socket, and the common-mode suppression The front end of the inductance 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, the safety capacitor and the input end of the rectifier bridge are connected in parallel to the rear end of the common mode suppression inductor, and the output end of the rectifier bridge A filter capacitor is connected in parallel.
优选地，所述PFC升压单元包括有升压电感、第三开关管、第一整流二极管和第二电解电容，所述升压电感的前端连接于输入整流滤波单元的输出端，所述升压电感的后端连接于第三开关管的漏极，所述第三开关管的源极接前端地，所述第三开关管的栅极用于接入一路PWM控制信号，所述第三开关管的漏极连接第一整流二极管的阳极，所述第一整流二极管的阴极作为PFC升压单元的输出端，且该第一整流二极管的阴极连接第二电解电容的正极，第二电解电容的负极接前端地。Preferably, the PFC boost unit includes a boost inductor, a third switch tube, a first rectifier diode and a second electrolytic capacitor, the front end of the boost inductor is connected to the output terminal of the input rectifier filter unit, and the boost The rear end of the piezoelectric inductance is connected to the drain of the third switching tube, the source of the third switching tube is connected to the front ground, and the gate of the third switching tube is used to access a PWM control signal. The drain of the switch tube is connected to the anode of the first rectifier diode, the cathode of the first rectifier diode is used as the output end of the PFC boost unit, and the cathode of the first rectifier diode is connected to the positive pole of the second electrolytic capacitor, and the second electrolytic capacitor The negative terminal of the terminal is connected to the ground.
优选地，还包括有一MCU控制单元，所述第一开关管的栅极、第二开关管的栅极和第三开关管的栅极分别连接于MCU控制单元，所述MCU控制单元用于分别输出PWM信号至第一开关管、第二开关管和第三开关管，以控制第一开关管、第二开关管和第三开关管通断状态。Preferably, it also includes an MCU control unit, the grid of the first switch tube, the grid of the second switch tube and the grid of the third switch tube are respectively connected to the MCU control unit, and the MCU control unit is used for respectively Outputting PWM signals to the first switch tube, the second switch tube and the third switch tube to control the on-off states of the first switch tube, the second switch tube and the third switch tube.
优选地，还包括有一交流采样单元，所述交流采样单元连接于输入整流滤波单元的输入端与MCU控制单元之间，所述交流采样单元用于采集输入整流滤波单元交流侧的电压并反馈至MCU控制单元。Preferably, an AC sampling unit is also included, the AC sampling unit is connected between the input terminal of the input rectification and filtering unit and the MCU control unit, and the AC sampling unit is used to collect the voltage on the AC side of the input rectification and filtering unit and feed it back to MCU control unit.
优选地，所述交流采样单元包括有运放，所述运放的两个输入端分别通过限流电阻而连接于输入整流滤波单元的输入端，所述运放的输出端连接于MCU控制单元。Preferably, the AC sampling unit includes an operational amplifier, the two input terminals of the operational amplifier are respectively connected to the input terminals of the input rectification and filtering unit through a current limiting resistor, and the output terminal of the operational amplifier is connected to the MCU control unit .
优选地，所述第三开关管的源极与前端地之间连接有第一采样电阻，所述第三开关管的源极连接于MCU控制单元，藉由所述第一采样电阻而令MCU控制单元采集第三开关管源极的电信号。Preferably, a first sampling resistor is connected between the source of the third switching tube and the front-end ground, the source of the third switching tube is connected to the MCU control unit, and the MCU is controlled by the first sampling resistor. The control unit collects the electrical signal of the source of the third switch tube.
优选地，还包括有一DC电压采样单元，所述DC电压采样单元包括有依次串联的第二采样电阻和第三采样电阻，所述第二采样电阻的前端连接于滤波电感的后端，所述第三采样电阻的后端连接于MCU控制单元，藉由所述第二采样电阻和第三采样电阻而令MCU控制单元采集滤波电感后端的电信号。Preferably, it also includes a DC voltage sampling unit, the DC voltage sampling unit includes a second sampling resistor and a third sampling resistor connected in series in sequence, the front end of the second sampling resistor is connected to the rear end of the filter inductor, the The rear end of the third sampling resistor is connected to the MCU control unit, and the MCU control unit collects the electrical signal at the rear end of the filter inductor through the second sampling resistor and the third sampling resistor.
优选地，所述逆变倒相单元包括有第四开关管、第五开关管、第三电解电容和第四电解电容，所述第四开关管的漏极连接于隔离型双管正激变换器的输出端正极，所述第四开关管的源极连接于第五开关管的漏极，所述第五开关管的源极连接于隔离型双管正激变换器的输出端负极，所述第四开关管的栅极和第五开关管的栅极分别用于接入两路相位相反的PWM脉冲信号，所述第三电解电容的正极连接于第四开关管的漏极，所述第三电解电容的负极连接后端地，所述第三电解电容的负极还连接于第四电解电容的正极，所述第四电解电容的负极连接于第五开关管的源极，所述第四开关管的源极和第三电解电容的负极作为逆变倒相单元的输出端。Preferably, the inverter and inverter unit includes a fourth switch tube, a fifth switch tube, a third electrolytic capacitor and a fourth electrolytic capacitor, the drain of the fourth switch tube is connected to the isolated two-tube forward conversion The positive pole of the output terminal of the switch, the source of the fourth switching tube is connected to the drain of the fifth switching tube, and the source of the fifth switching tube is connected to the negative pole of the output terminal of the isolated dual-transistor forward converter, so The grid of the fourth switching tube and the grid of the fifth switching tube are respectively used to access two PWM pulse signals with opposite phases, the positive pole of the third electrolytic capacitor is connected to the drain of the fourth switching tube, and the The negative pole of the third electrolytic capacitor is connected to the rear end, the negative pole of the third electrolytic capacitor is also connected to the positive pole of the fourth electrolytic capacitor, the negative pole of the fourth electrolytic capacitor is connected to the source of the fifth switching tube, and the negative pole of the first electrolytic capacitor is connected to the source of the fifth switching tube. The source poles of the four switch tubes and the negative pole of the third electrolytic capacitor serve as the output terminals of the inverter unit.
优选地，所述第四开关管的栅极和源极之间连接有第一电阻，所述第五开关管的栅极和源极之间连接有第二电阻。Preferably, a first resistor is connected between the gate and source of the fourth switch transistor, and a second resistor is connected between the gate and source of the fifth switch transistor.
本发明公开的基于PFC正激半桥的智能型修正波电压转换电路中，利用输入整流滤波单元对电网电压进行整流和滤波后输出脉动直流电压，之后利用PFC升压单元对脉动直流电压进行升压处理，在隔离型双管正激变换器中，第一开关管的栅极和第二开关管的栅极用于接入相同的PWM信号，当第一开关管与第二开关管同时导通，变压器的初级线圈经过磁芯藕合至次级两个线圈，次级两个线圈中的一个同名端与另一个线圈的异端连在一起，通过第三二极管、第四二极管整流后形成正负母线电压，送给滤波电感滤波成直流输出给逆变倒相单元；当第一开关管与第二开关管关断时，为了保持变压器的初级线圈电流方向相同，此时第一二极管和第二二极管开始工作，并对磁芯进行磁复位，通过改变变压器初次级的匝比可以使次级电压低于或高于初级输入电压，达到降压或升压目的。本发明不仅实现了电压的隔离传输，有效提高升压/降压转换装置的PF值，同时还提高了输出电压质量，使得电压转换过程更加安全可靠。In the intelligent modified wave voltage conversion circuit based on the PFC forward half bridge disclosed by the present invention, the input rectification filter unit is used to rectify and filter the grid voltage to output the pulsating DC voltage, and then the PFC booster unit is used to boost the pulsating DC voltage. Voltage processing, in the isolated dual-transistor forward converter, the gate of the first switch and the gate of the second switch are used to access the same PWM signal, when the first switch and the second switch are simultaneously turned on Through, the primary coil of the transformer is coupled to the two secondary coils through the magnetic core, and one of the two secondary coils with the same name is connected to the opposite end of the other coil, through the third diode and the fourth diode After rectification, the positive and negative bus voltages are formed, which are sent to the filter inductor to filter and output to the inverter inverter unit; when the first switching tube and the second switching tube are turned off, in order to keep the current direction of the primary coil of the transformer in the same direction, the first The first diode and the second diode start to work, and magnetically reset the magnetic core. By changing the primary and secondary turns ratio of the transformer, the secondary voltage can be lower or higher than the primary input voltage to achieve the purpose of step-down or boost . The invention not only realizes the isolated transmission of the voltage, effectively improves the PF value of the step-up/down conversion device, but also improves the quality of the output voltage, so that the voltage conversion process is safer and more reliable.
附图说明Description of drawings
图1为输入整流滤波单元和PFC升压单元的电路原理图。Fig. 1 is a circuit schematic diagram of an input rectification filter unit and a PFC boost unit.
图2为隔离型双管正激变换器和DC电压采样单元的电路原理图。Fig. 2 is a circuit schematic diagram of an isolated dual-transistor forward converter and a DC voltage sampling unit.
图3为逆变倒相单元的电路原理图。FIG. 3 is a circuit schematic diagram of an inverter and phase inverting unit.
图4为交流采样单元的电路原理图。Figure 4 is a circuit schematic diagram of the AC sampling unit.
图5为MCU控制单元的电路原理图。Figure 5 is a circuit schematic diagram of the MCU control unit.
具体实施方式detailed description
下面结合附图和实施例对本发明作更加详细的描述。The present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments.
本发明公开了一种基于PFC正激半桥的智能型修正波电压转换电路，结合图1至图5所示，其包括有：The present invention discloses an intelligent corrected wave voltage conversion circuit based on PFC forward half-bridge, which is shown in Fig. 1 to Fig. 5, which includes:
一输入整流滤波单元10，其输入端连接电网，用于对电网电压进行整流和滤波；An input rectification and filtering unit 10, the input end of which is connected to the power grid for rectifying and filtering the power grid voltage;
一PFC升压单元20，连接于输入整流滤波单元10的输出端，用于对输入整流滤波单元10的输出电压进行升压转换；A PFC step-up unit 20, connected to the output end of the input rectification filter unit 10, for boosting the output voltage of the input rectification filter unit 10;
一隔离型双管正激变换器30，包括有第一开关管Q6、第二开关管Q7、第一二极管D3、第二二极管D2、第三二极管D5、第四二极管D8、变压器T1和滤波电感L3，所述第一开关管Q6的漏极连接于PFC升压单元20的输出端，所述第一开关管Q6的源极连接于变压器T1初级绕组的第一端，所述变压器T1初级绕组的第二端连接第二开关管Q7的漏极，所述第二开关管Q7的源极连接前端地，所述第一二极管D3的阴极连接于第一开关管Q6的漏极，所述第一二极管D3的阳极连接于变压器T1初级绕组的第二端，所述第二二极管D2的阴极连接于变压器T1初级绕组的第一端，所述第二二极管D2的阳极连接于第二开关管Q7的源极，所述第一开关管Q6的栅极和第二开关管Q7的栅极用于接入相同的PWM信号，所述变压器T1初级绕组的中间抽头连接于后端地，所述变压器T1初级绕组的第一端连接于第三二极管D5的阳极，所述第三二极管D5的阴极连接于滤波电感L3的前端，所述滤波电感L3的后端作为隔离型双管正激变换器30的输出端正极，所述变压器T1初级绕组的第二端连接于第四二极管D8的阴极，所述第四二极管D8的阳极作为隔离型双管正激变换器30的输出端负极；An isolated two-tube forward converter 30, including a first switching tube Q6, a second switching tube Q7, a first diode D3, a second diode D2, a third diode D5, a fourth diode Tube D8, transformer T1 and filter inductance L3, the drain of the first switch tube Q6 is connected to the output end of the PFC step-up unit 20, the source of the first switch tube Q6 is connected to the first primary winding of the transformer T1 end, the second end of the primary winding of the transformer T1 is connected to the drain of the second switching tube Q7, the source of the second switching tube Q7 is connected to the front-end ground, and the cathode of the first diode D3 is connected to the first The drain of the switching tube Q6, the anode of the first diode D3 is connected to the second end of the primary winding of the transformer T1, and the cathode of the second diode D2 is connected to the first end of the primary winding of the transformer T1, so The anode of the second diode D2 is connected to the source of the second switch Q7, the gate of the first switch Q6 and the gate of the second switch Q7 are used to access the same PWM signal, the The middle tap of the primary winding of the transformer T1 is connected to the back-end ground, the first end of the primary winding of the transformer T1 is connected to the anode of the third diode D5, and the cathode of the third diode D5 is connected to the filter inductor L3 The front end, the rear end of the filter inductor L3 is used as the positive pole of the output end of the isolated two-tube forward converter 30, the second end of the primary winding of the transformer T1 is connected to the cathode of the fourth diode D8, the fourth The anode of the diode D8 is used as the negative pole of the output terminal of the isolated dual-tube forward converter 30;
一逆变倒相单元60，连接于隔离型双管正激变换器30的输出端，所述逆变倒相单元60用于对隔离型双管正激变换器30的输出电压进行逆变转换后输出交流电。An inverting and inverting unit 60, connected to the output end of the isolated two-tube forward converter 30, the inverting and inverting unit 60 is used for inverting and converting the output voltage of the isolated two-tube forward converter 30 Then output AC power.
上述修正波电压转换电路中，利用输入整流滤波单元10对电网电压进行整流和滤波后输出脉动直流电压，之后利用PFC升压单元20对脉动直流电压进行升压处理，在隔离型双管正激变换器30中，第一开关管Q6的栅极和第二开关管Q7的栅极用于接入相同的PWM信号，当第一开关管Q6与第二开关管Q7同时导通，变压器T1的初级线圈经过磁芯藕合至次级两个线圈，次级两个线圈中的一个同名端与另一个线圈的异端连在一起，通过第三二极管D5、第四二极管D8整流后形成正负母线电压，送给滤波电感L3滤波成直流输出给逆变倒相单元60；当第一开关管Q6与第二开关管Q7关断时，为了保持变压器T1的初级线圈电流方向相同，此时第一二极管D3和第二二极管D2开始工作，并对磁芯进行磁复位，通过改变变压器T1初次级的匝比可以使次级电压低于或高于初级输入电压，达到降压或升压目的。本发明不仅实现了电压的隔离传输，有效提高升压/降压转换装置的PF值，同时还提高了输出电压质量，使得电压转换过程更加安全可靠。In the above modified wave voltage conversion circuit, the input rectification and filtering unit 10 is used to rectify and filter the grid voltage to output the pulsating DC voltage, and then the PFC boost unit 20 is used to boost the pulsating DC voltage. In the converter 30, the gate of the first switching tube Q6 and the gate of the second switching tube Q7 are used to access the same PWM signal. When the first switching tube Q6 and the second switching tube Q7 are turned on at the same time, the transformer T1 The primary coil is coupled to the two secondary coils through the magnetic core, and one of the two secondary coils with the same name is connected to the opposite end of the other coil, and is rectified by the third diode D5 and the fourth diode D8 The positive and negative bus voltages are formed and sent to the filter inductor L3 to be filtered and output to the inverter inverter unit 60; when the first switching tube Q6 and the second switching tube Q7 are turned off, in order to keep the primary coil current direction of the transformer T1 in the same direction, At this time, the first diode D3 and the second diode D2 start to work, and magnetically reset the magnetic core. By changing the primary and secondary turns ratio of the transformer T1, the secondary voltage can be lower or higher than the primary input voltage, reaching buck or boost purpose. The invention not only realizes the isolated transmission of the voltage, effectively improves the PF value of the step-up/down conversion device, but also improves the quality of the output voltage, so that the voltage conversion process is safer and more reliable.
作为一种优选方式，请参照图1，所述输入整流滤波单元10包括有插座、保险F2、防雷电阻RV1、共模抑制电感L1、安规电容CX1和整流桥DB1，所述保险F2串接于插座的零线或火线上，所述共模抑制电感L1的前端并联于插座，所述防雷电阻RV1并联于共模抑制电感L1的前端，所述安规电容CX1和整流桥DB1的输入端均并联于共模抑制电感L1的后端，所述整流桥DB1的输出端并联有滤波电容C1。As a preferred mode, please refer to Fig. 1, the input rectification and filtering unit 10 includes a socket, insurance F2, lightning protection resistor RV1, common mode suppression inductor L1, safety capacitor CX1 and rectifier bridge DB1, the insurance F2 is connected in series Connected to the zero line or live line of 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 suppression inductor L1, the safety capacitor CX1 and the rectifier bridge DB1 The input terminals are all connected in parallel to the rear end of the common mode suppression inductor L1, and the output terminal of the rectifier bridge DB1 is connected in parallel with a filter capacitor C1.
本实施例中，所述PFC升压单元20包括有升压电感L2、第三开关管Q5、第一整流二极管D1和第二电解电容C2，所述升压电感L2的前端连接于输入整流滤波单元10的输出端，所述升压电感L2的后端连接于第三开关管Q5的漏极，所述第三开关管Q5的源极接前端地，所述第三开关管Q5的栅极用于接入一路PWM控制信号，所述第三开关管Q5的漏极连接第一整流二极管D1的阳极，所述第一整流二极管D1的阴极作为PFC升压单元20的输出端，且该第一整流二极管D1的阴极连接第二电解电容C2的正极，第二电解电容C2的负极接前端地。In this embodiment, the PFC boost unit 20 includes a boost inductor L2, a third switch tube Q5, a first rectifier diode D1, and a second electrolytic capacitor C2. The front end of the boost inductor L2 is connected to the input rectifier filter The output end of the unit 10, the back end of the boost inductor L2 is connected to the drain of the third switching tube Q5, the source of the third switching tube Q5 is connected to the front end, and the gate of the third switching tube Q5 For connecting a PWM control signal, the drain of the third switching tube Q5 is connected to the anode of the first rectifying diode D1, the cathode of the first rectifying diode D1 is used as the output end of the PFC boost unit 20, and the first The cathode of a rectifier 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 terminal ground.
上述PFC升压单元20中，若滤波电容C1输出半波交流电压，PFC进入升压模式，以提高AC转AC智能降压转换拓扑电路的PF值，升压后通过第二电解电容C2滤波后的电压为400V，具体的升压原理如下：第三开关管Q5导通时，滤波电容C1上的电流经升压电感L2、第三开关管Q5到GND形成回路，升压电感L2储存能量；当第三开关管Q5关断时，升压电感上会形成比输入电压高得多的感应电动势，感应电动势经续流管D1进行整流后形成单向脉冲电压再送给第二电解电容C2电容进滤波，滤波成400V的直流电压。并且第三开关管Q5是根据控制芯片采到的输入交流正弦波变化来加大或减少第三开关管Q5的导通时间，以使电流与电压相位变一致来提高PF值。In the above-mentioned PFC boost unit 20, if the filter capacitor C1 outputs a half-wave AC voltage, the PFC enters the boost mode to increase the PF value of the AC-to-AC intelligent step-down conversion topology circuit, and after the boost is filtered by the second electrolytic capacitor C2 The voltage is 400V, and the specific boost principle is as follows: when the third switch tube Q5 is turned on, the current on the filter capacitor C1 forms a loop through the boost inductor L2 and the third switch tube Q5 to GND, and the boost inductor L2 stores energy; When the third switching tube Q5 is turned off, an induced electromotive force much higher than the input voltage will be formed on the boost inductor, and the induced electromotive force will be rectified by the freewheeling tube D1 to form a one-way pulse voltage and then sent to the second electrolytic capacitor C2 for further Filtering, filtering into 400V DC voltage. And the third switch tube Q5 increases or decreases the conduction time of the third switch tube Q5 according to the change of the input AC sine wave collected by the control chip, so that the phase of the current and the voltage become consistent to increase the PF value.
作为一种优选方式，请参照图5，本实施例还包括有一MCU控制单元80，所述第一开关管Q6的栅极、第二开关管Q7的栅极和第三开关管Q5的栅极分别连接于MCU控制单元80，所述MCU控制单元80用于分别输出PWM信号至第一开关管Q6、第二开关管Q7和第三开关管Q5，以控制第一开关管Q6、第二开关管Q7和第三开关管Q5通断状态。As a preferred manner, please refer to FIG. 5, this embodiment also includes an MCU control unit 80, the gate of the first switch Q6, the gate of the second switch Q7 and the gate of the third switch Q5 Respectively connected to the MCU control unit 80, the MCU control unit 80 is used to respectively output PWM signals to the first switch tube Q6, the second switch tube Q7 and the third switch tube Q5, so as to control the first switch tube Q6, the second switch tube The switch Q7 and the third switch Q5 are in the on-off state.
为了便于监测交流侧的电信号，请参照图4，还包括有一交流采样单元70，所述交流采样单元70连接于输入整流滤波单元10的输入端与MCU控制单元80之间，所述交流采样单元70用于采集输入整流滤波单元10交流侧的电压并反馈至MCU控制单元80。For the convenience of monitoring the electrical signal of the AC side, please refer to Fig. 4, also includes an AC sampling unit 70, the AC sampling unit 70 is connected between the input end of the input rectification filter unit 10 and the MCU control unit 80, the AC sampling unit The unit 70 is used to collect the voltage input to the AC side of the rectification and filtering unit 10 and feed it back to the MCU control unit 80 .
进一步地，所述交流采样单元70包括有运放U9B，所述运放U9B的两个输入端分别通过限流电阻而连接于输入整流滤波单元10的输入端，所述运放U9B的输出端连接于MCU控制单元80。Further, the AC sampling unit 70 includes an operational amplifier U9B, the two input terminals of the operational amplifier U9B are respectively connected to the input terminals of the input rectification and filtering unit 10 through a current limiting resistor, and the output terminals of the operational amplifier U9B Connected to the MCU control unit 80 .
为了便于对电流进行实时采集，所述第三开关管Q5的源极与前端地之间连接有第一采样电阻R2A，所述第三开关管Q5的源极连接于MCU控制单元80，藉由所述第一采样电阻R2A而令MCU控制单元80采集第三开关管Q5源极的电信号。In order to facilitate real-time collection of current, a first sampling resistor R2A is connected between the source of the third switching tube Q5 and the front-end ground, and the source of the third switching tube Q5 is connected to the MCU control unit 80, by The first sampling resistor R2A enables the MCU control unit 80 to collect the electrical signal of the source of the third switching transistor Q5.
作为一种优选方式，为了对直流侧电信号进行采集，本实施例还包括有一DC电压采样单元40，所述DC电压采样单元40包括有依次串联的第二采样电阻R13和第三采样电阻R15，所述第二采样电阻R13的前端连接于滤波电感L3的后端，所述第三采样电阻R15的后端连接于MCU控制单元80，藉由所述第二采样电阻R13和第三采样电阻R15而令MCU控制单元80采集滤波电感L3后端的电信号。As a preferred manner, in order to collect the DC side electric signal, this embodiment also includes a DC voltage sampling unit 40, the DC voltage sampling unit 40 includes a second sampling resistor R13 and a third sampling resistor R15 connected in series in sequence , the front end of the second sampling resistor R13 is connected to the rear end of the filter inductor L3, the rear end of the third sampling resistor R15 is connected to the MCU control unit 80, through the second sampling resistor R13 and the third sampling resistor R15 enables the MCU control unit 80 to collect the electrical signal at the rear end of the filter inductor L3.
关于逆变部分，请参照图3，所述逆变倒相单元60包括有第四开关管Q2、第五开关管Q4、第三电解电容C3和第四电解电容C4，所述第四开关管Q2的漏极连接于隔离型双管正激变换器30的输出端正极，所述第四开关管Q2的源极连接于第五开关管Q4的漏极，所述第五开关管Q4的源极连接于隔离型双管正激变换器30的输出端负极，所述第四开关管Q2的栅极和第五开关管Q4的栅极分别用于接入两路相位相反的PWM脉冲信号，所述第三电解电容C3的正极连接于第四开关管Q2的漏极，所述第三电解电容C3的负极连接后端地，所述第三电解电容C3的负极还连接于第四电解电容C4的正极，所述第四电解电容C4的负极连接于第五开关管Q4的源极，所述第四开关管Q2的源极和第三电解电容C3的负极作为逆变倒相单元60的输出端。Regarding the inverter part, please refer to FIG. 3 , the inverter and phase inverting unit 60 includes a fourth switching tube Q2, a fifth switching tube Q4, a third electrolytic capacitor C3 and a fourth electrolytic capacitor C4, and the fourth switching tube The drain of Q2 is connected to the positive pole of the output terminal of the isolated two-transistor forward converter 30, the source of the fourth switching transistor Q2 is connected to the drain of the fifth switching transistor Q4, and the source of the fifth switching transistor Q4 The pole is connected to the negative pole of the output terminal of the isolated dual-transistor forward converter 30, and the grid of the fourth switching tube Q2 and the grid of the fifth switching tube Q4 are respectively used to access two PWM pulse signals with opposite phases, The anode of the third electrolytic capacitor C3 is connected to the drain of the fourth switching transistor Q2, the negative electrode of the third electrolytic capacitor C3 is connected to the back-end ground, and the negative electrode of the third electrolytic capacitor C3 is also connected to the fourth electrolytic capacitor The positive pole of C4, the negative pole of the fourth electrolytic capacitor C4 is connected to the source of the fifth switching transistor Q4, the source of the fourth switching transistor Q2 and the negative pole of the third electrolytic capacitor C3 serve as the inverter inverter unit 60 output.
进一步地，所述第四开关管Q2的栅极和源极之间连接有第一电阻R17，所述第五开关管Q4的栅极和源极之间连接有第二电阻R23。Further, a first resistor R17 is connected between the gate and source of the fourth switching transistor Q2, and a second resistor R23 is connected between the gate and source of the fifth switching transistor Q4.
上述逆变电路中，经过滤波电感L3滤波电感滤成直流电压经第四开关管Q2、负载、第四电解电容C4形成回路给负载供电形成第一个半周期修正波电平；第二个半周期修正弦电平通过第五开关管Q4、负载、第三电解电容C3形成回路，这样在负载上就形成了一个完整的工频修正波交流电压。控制芯片输出的PWM信号经驱动电路后分别送出PWM2H、PWM2L给第四开关管Q2、第五开关管Q4的GATE极。逆变倒相电路中的相位与频率按照控制芯片内部设定的模式进行工作。同时第三电解电容C3、第四电解电容C4还有滤波的作用，可以与滤波电感L3组成滤波电路。本逆变电路控制简单，电路只用两个MOS管，成本低廉。In the above inverter circuit, the DC voltage is filtered by the filter inductor L3 to form a loop through the fourth switching tube Q2, the load, and the fourth electrolytic capacitor C4 to supply power to the load to form the first half-cycle correction wave level; the second half-cycle The periodically corrected sinusoidal level forms a loop through the fifth switch tube Q4, the load, and the third electrolytic capacitor C3, so that a complete power frequency corrected wave AC voltage is formed on the load. The PWM signal output by the control chip is sent to the GATE poles of the fourth switching tube Q2 and the fifth switching tube Q4 respectively after passing through the driving circuit to PWM2H and PWM2L. The phase and frequency in the inverter inverter circuit work according to the mode set inside the control chip. At the same time, the third electrolytic capacitor C3 and the fourth electrolytic capacitor C4 also have the function of filtering, and can form a filtering circuit with the filtering inductor L3. The control of the inverter circuit is simple, the circuit only uses two MOS tubes, and the cost is low.
本发明公开的基于PFC正激半桥的智能型修正波电压转换电路，其具有高PF值，可实现电网与输出端隔离，且安全性非常高。在输入全电压范围内能够能自动调节输出电压，可固定输出频率，并且输出电压是以修正波输出，对交流电压有自动整形功能，此外，本发明电路简单，控制方便，并且含有电压与电流采样电路，能防浪涌电压与电流。The intelligent modified wave voltage conversion circuit based on the PFC forward half-bridge disclosed by the invention has a high PF value, can realize the isolation of the power grid and the output terminal, and has very high safety. The output voltage can be automatically adjusted within the full input voltage range, the output frequency can be fixed, and the output voltage is output by a modified wave, which has an automatic shaping function for the AC voltage. In addition, the circuit of the present invention is simple, easy to control, and contains voltage and current. The sampling circuit can prevent surge voltage and current.
以上所述只是本发明较佳的实施例，并不用于限制本发明，凡在本发明的技术范围内所做的修改、等同替换或者改进等，均应包含在本发明所保护的范围内。The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. All modifications, equivalent replacements or improvements made within the technical scope of the present invention shall be included in the protection scope of the present invention.
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| CN201611226307.9A CN106787800A (en) | 2016-12-27 | 2016-12-27 | A kind of intelligent amendment wave voltage change-over circuit based on PFC normal shock half-bridges |
| PCT/CN2017/080987 WO2018120522A1 (en) | 2016-12-27 | 2017-04-19 | Pfc forward conversion half bridge-based smart modified sine wave voltage conversion circuit |
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|---|---|---|---|---|
| CN108696162A (en) * | 2018-04-26 | 2018-10-23 | 深圳市伊力科电源有限公司 | feedback type electronic load circuit and control method with ultra-wide input range |
Families Citing this family (6)
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| CN111193408B (en) * | 2020-03-04 | 2024-06-11 | 深圳英飞源技术有限公司 | Mutual feedback type auxiliary power supply circuit |
| CN112054666B (en) * | 2020-09-03 | 2024-12-27 | 中冶天工集团有限公司 | A current correction topology circuit based on bidirectional boost lossless conversion |
| CN115395767A (en) * | 2022-09-21 | 2022-11-25 | 北京雪迪龙科技股份有限公司 | Infrared light source constant power control circuit |
| CN115589161A (en) * | 2022-09-30 | 2023-01-10 | 佳源科技股份有限公司 | Topology combination circuit and method applied to isolating switch power supply |
| CN115694219A (en) * | 2022-11-11 | 2023-02-03 | 天津铁路信号有限责任公司 | Direct current power supply module |
| CN118157498A (en) * | 2024-03-25 | 2024-06-07 | 长沙学院 | Boosting circuit and electronic equipment based on synchronous magnetic flux extraction |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040012343A1 (en) * | 2002-07-19 | 2004-01-22 | Nostwick Allan Albert | Lighting control system with variable arc control including start-up circuit for providing a bias voltage supply |
| CN101521467A (en) * | 2008-11-14 | 2009-09-02 | 浙江大学 | High-frequency distribution transformer |
| CN201536275U (en) * | 2009-11-18 | 2010-07-28 | 陆乐 | Multifunctional switch power supply |
| CN204030965U (en) * | 2014-08-12 | 2014-12-17 | 深圳市科瑞爱特科技开发有限公司 | A kind of auxiliary power circuit of three-phase main-frequency Driven by inverter plate |
| CN106208638A (en) * | 2015-04-30 | 2016-12-07 | 神华集团有限责任公司 | Device for converting electric energy and corresponding electric energy management connection system |
| CN206402114U (en) * | 2016-12-27 | 2017-08-11 | 广东百事泰电子商务股份有限公司 | An Intelligent Modified Wave Voltage Conversion Circuit Based on PFC Forward Half Bridge |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438286C (en) * | 2006-06-09 | 2008-11-26 | 燕山大学 | Dual-tube dual-forward-excitation boosting type single-stage power factor correction circuit |
| CN106533194A (en) * | 2016-12-15 | 2017-03-22 | 广东百事泰电子商务股份有限公司 | PFC forward full-bridge-based intelligent type correction filtering voltage conversion circuit |
| CN106787799A (en) * | 2016-12-27 | 2017-05-31 | 广东百事泰电子商务股份有限公司 | A kind of intelligent sine voltage change-over circuit based on PFC normal shock half-bridges |
-
2016
- 2016-12-27 CN CN201611226307.9A patent/CN106787800A/en active Pending
-
2017
- 2017-04-19 WO PCT/CN2017/080987 patent/WO2018120522A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040012343A1 (en) * | 2002-07-19 | 2004-01-22 | Nostwick Allan Albert | Lighting control system with variable arc control including start-up circuit for providing a bias voltage supply |
| CN101521467A (en) * | 2008-11-14 | 2009-09-02 | 浙江大学 | High-frequency distribution transformer |
| CN201536275U (en) * | 2009-11-18 | 2010-07-28 | 陆乐 | Multifunctional switch power supply |
| CN204030965U (en) * | 2014-08-12 | 2014-12-17 | 深圳市科瑞爱特科技开发有限公司 | A kind of auxiliary power circuit of three-phase main-frequency Driven by inverter plate |
| CN106208638A (en) * | 2015-04-30 | 2016-12-07 | 神华集团有限责任公司 | Device for converting electric energy and corresponding electric energy management connection system |
| CN206402114U (en) * | 2016-12-27 | 2017-08-11 | 广东百事泰电子商务股份有限公司 | An Intelligent Modified Wave Voltage Conversion Circuit Based on PFC Forward Half Bridge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696162A (en) * | 2018-04-26 | 2018-10-23 | 深圳市伊力科电源有限公司 | feedback type electronic load circuit and control method with ultra-wide input range |
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