一种具有恒频控制和新型有源电流检测技术的电流模式迟滞Buck变换器

This article presents a hysteretic-current-controlled buck converter with constant-frequency-controlled and active-current-sensing (ACS) techniques. This converter used phase-frequency-locked techniques to achieve constant switching frequency. Even if the input voltage or output load current changes, the switching frequency will be as stable as possible at 1 MHz. The proposed ACS circuit will not ...