公开(公告)号：US20200136494A1

公开(公告)日：2020-04-30

申请号：US16175026

申请日：2018-10-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Taisuke KAZAMA ,  Masahiro YOSHIOKA

IPC: H02M1/08 ,  H02M3/158

Abstract: An apparatus includes a direct-current to direct-current (DC-DC) converter having an output node and at least one electronic switch. The DC-DC converter also includes: 1) a first feedback loop configured to control a voltage at the output node by adjusting a first switching parameter of the at least one electronic switch; and 2) a second feedback loop configured to adjust a second switching parameter of the at least one electronic switch. The second feedback loop includes a switched-capacitor circuit configured to determine a threshold signal based on an error between a reference signal and a control signal for the at least one electronic switch. The second feedback loop is configured to adjust the second switching parameter based on a comparison of an on-time signal with the threshold signal.