| 摘要 |
A flyback converter is provided to reduce loss generated in a switching device and stress of the switching device by realizing ZVS(Zero Voltage Switching) in the converter. A flyback converter includes a first switching device(FET1), a first inductor(LM), a second inductor(LR), a condenser(CR), and a second switching device(FET2). The first switching device is connected to one end of a coil of a primary side and a cathode of DC power to control the DC power applied to the coil of the primary side of a transformer. The first inductor is connected with both ends of the coil of the primary side. The second inductor is connected to an anode of the DC power and one end of the coil of the primary side. The condenser and the second switching device are sequentially and serially connected to both electrodes of the DC power and one end of the coil of the primary side.
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