Xu Ji power ZZG22A-10220 DC screen high-frequency switch rectifier original charging module

High-frequency switch rectifier The role of the high-frequency switch rectifier is to convert alternating current to direct current, on the one hand to charge the battery, at the same time to provide the regular load current of the DC system. The main loop of the high-frequency switch rectifier includes EMI filtering, full-bridge rectifier, PFC correction, high-frequency inverter, high-frequency transformer, high-frequency rectification and LC filtering. The functions of each part are as follows: EMI filtering: to suppress the peak voltage interference on the AC input side and reduce the harm of overvoltage impact on the rectifier module to a small extent; Block the high frequency interference generated by the rectifier module to reverse transmission and pollute the power grid. Full bridge rectifier: The rectifier bridge is used to directly convert the AC input voltage to pulsating DC. PFC correction: The single-phase module uses active devices and the three-phase module uses passive devices to convert the pulsating DC generated by rectification into smooth DC and correct the power factor of the AC input circuit. High-frequency conversion: The use of MOSFET or IGBT switching power devices, the input direct current into the pulse width adjustable high-frequency ac pulse impulse wave. High-frequency transformer: the high-frequency AC pulse wave isolation, coupled output, to achieve AC input and DC output electrical isolation and power transmission. High frequency rectification: the use of fast recovery diode, high-frequency alternating pulse wave into high frequency pulsating direct current. LC filtering: Passive LC devices are used to convert high-frequency pulsating DC into smooth DC output. Switch conversion: Soft switching technology is adopted for switch conversion, which can greatly reduce the switching loss of power devices and improve the conversion efficiency. At the same time, because the voltage change rate (dv/dt) and current change rate (di/dt) are greatly reduced, the electrical stress of the power switch device is less, and the reliability is greatly improved. In addition, due to the reduction of dv/dt and di/dt, the electromagnetic interference generated by the high-frequency switching power supply has been greatly improved, and passed all electromagnetic compatibility (EMC) tests, known as green power supply. ZZG21 series rectifier module (single-phase input, MOSFET switch conversion, working frequency of 100kHz) : zzG21-05220 ---- Nominal DC output voltage 220V, rated output current 5A; ZZG21-10220---- Nominal DC output voltage 220V, rated output current 10A; ZZG21-10 110---- Nominal DC output voltage 110V, rated output current 10A; ZZG21-20 110---- Nominal DC output voltage 110V, rated output current 20A. ZZG22 series rectifier module (three-phase input, MOSFET switch conversion, working frequency of 100kHz) : ZZG22-05220---- Nominal DC output voltage 220V, rated output current 5A; ZZG22-10220---- Nominal DC output voltage 220V, rated output current 10A; ZZG22-10 110---- Nominal DC output voltage 110V, rated output current 10A; ZZG22-20 110---- Nominal DC output voltage 110V, rated output current 20A. ZZG23 series rectifier module (three-phase input, IGBT switch conversion, working frequency 50kHz) : zzG23-20220 ---- Nominal DC output voltage 220V, rated output current 20A; ZZG23-30220---- Nominal DC output voltage 220V, rated output current 30A; ZZG23-40220---- Nominal DC output voltage 220V, rated output current 40A; ZZG23-30 110---- Nominal DC output voltage 110V, rated output current 30A; ZZG23-40 110---- Nominal DC output voltage 110V, rated output current 40A; ZZG23-50 110---- Nominal DC output voltage 110V, rated output current 50A. Xu Ji ZZG23A-20220 high frequency switch rectifier