Power converter with adaptive zero-crossing current detection
A power converter with adaptive zero-crossing current detection is provided. The power converter includes a first transistor, a second transistor, a PWM (Pulse Width Modulation) controller, a low-pass filter, and a delay controller. The first transistor is coupled between a supply voltage and a common node. The second transistor is coupled between the common node and a ground voltage. The common node has a reactive voltage. A reactive current flows through the common node. The PWM controller selectively enables and disables the first transistor and the second transistor according to a second control signal and a first transistor control signal. The low-pass filter is coupled between the common node and an output node. The delay controller generates the second control signal according to the reactive voltage.
MEDIATEK INC.
H H H H Y
H02M H02M H02M H02M Y02B
additional inventional inventional additional additional
Kuan-Yu Yung Hsu
Chu Chen