一种用于三电平Buck-Boost变换器的无触发双斜坡控制器，实现快速瞬态响应与无缝模式切换

This letter proposes a trigger-free dual-ramp controller for a three-level buck-boost converter. This design improves dynamic responses by eliminating the delay due to the clock edges in traditional pulse width modulation controllers. It can fasten the inductor current slew rate in transient responses. The proposed controller also ensures seamless mode transition and reduces switching losses when ...