原边控制反激式AC/DC变换器的自补偿过流保护控制方案

Primary-side controlled universal-line flyback converters have been widely used in low-power applications due to their simplicity, low standby power, and low cost. However, conventional OCP schemes normally cause too large a variation in output current when the input voltage varies. This paper proposes a self-compensating OCP circuit to achieve a high-precision constant current at different input ...