摘要
分析了一种限流保护电路应用于 Boost,Buck-Boost,Flyback 等输出电流断续型拓扑时限流保护电流随输入电压变化而波动的原理。之后对该限流保护电路加以改进,使限流保护电流的波动范围限制在一个较小的范围之内。最后的实验结果验证了该改进方案的有效性。
An over current protection(OCP)circuit is presented and it is analysed the principle of the instability of protection point when it applied in Boost,Buck-Boost,Flyback and any other topologies with discontinuous output current,then the OCP circuit is improved to limit the variation of the protection point in a low range.The final experimental result verifies the availability of the improved circuit.
出处
《电源技术应用》
2004年第8期473-475,共3页
Power Supply Technologles and Applications
关键词
限流保护
宽范围
输出电流断续
OCP
wide input range
discontinuous output current
