用互补双稳态触发器作过载截流保护的功率放大器

Power Amplifier Cut-off Current Protection for Overburden Using Complementary Bistable Flip-flop

文中介绍了一种截流式保护电路,能对推挽式功率放大器的过载与短路起到良好的保护作用。其效果优于限流式保护电路。

Power amplifier, sometimes, can be damaged due to overburden or short-circuit, especially used as frequency changing AC. power. The amplifier would be damaged,even though the trouble time is short. This paper introduces a cut-off current protection circuit that can protect push and pull mode power amplifier. This method has many excellent functions that common current limitation mode protection circuits can not achieve.