Muncy, Geissler, Olds & Lowe, P.C.
Cross-interference reduction of a buck power converter
A power converter includes a first conversion stage for converting an input voltage to a first output voltage and a second conversion stage for converting the first output voltage to a second output voltage. An error signal is generated according to a reference voltage and a feedback signal extracted from the second conversion stage, and a feed forward signal is generated from the error signal and injected into the first conversion stage to stabilize the first output voltage. The feedback signal is a function of the second output voltage and thus, the error signal varies with the second output voltage. As a result, the first output voltage will be stabilized when the second output voltage varies, due to the varied feed forward signal.
Richtek Technology Corp.
H H Y H
H02M H02M Y02B H02M
inventional additional additional additional
Jing-Meng
Liu