Recoverable synchronous rectification absorption circuit

• Main Authors: LIAO GUANGYU, ZHU XINGCHENG
• Format: Patent
• Language: Chinese; English
• Published: 15.12.2020
• Subjects: ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY

The utility model discloses a recoverable synchronous rectification absorption circuit which comprises a transformer leakage inductor LS, an inductor L2, two metal oxide semiconductor field effect transistors MOSFET, three capacitors, four diodes, two resistors and one triode. Two drain electrodes (D electrodes) of the two metal oxide semiconductor field-effect tube MOSFETs are respectively connected with two ends of a leakage inductor LS of the transformer, and two source electrodes (S electrodes) of the two metal oxide semiconductor field-effect tube MOSFETs are grounded; the middle end of the transformer leakage inductor LS is grounded through the inductor L2 and the output capacitor C0, and the voltage V + is connected between the inductor L2 and the output capacitor C0; according to the utility model, peak energy is recovered, the efficiency is improved, the peak voltage is reduced, the reliability of the MOSFET is improved, and the EMI interference is reduced. 本实用新型公开了一种可回收的同步整流吸收电路，包括变压器漏感LS，电感L2，2个金属氧