辅助电路由辅助开关管、耦合电感(反激变压器)和反馈二极管构成。

The auxiliary circuit is composed of an auxiliary switch, a coupled inductor (flyback transformer) and a feedback diode.

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该电路采用脉冲变压器耦合MOSFET管驱动电路，具有输出变压器原边平均电流和副边峰值电流的过流保护功能。

The circuit, with over-current protection of output transformer original side average current and side peak current, adopts pulse transformer coupling MOSFET driving circuit.

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