公开(公告)号：US20230138767A1

公开(公告)日：2023-05-04

申请号：US17946036

申请日：2022-09-16

Applicant: uPI Semiconductor Corp.

Inventor： Yun-Kuo Lee ,  Wei-Hsiang Wang ,  Yen-Chih Lin ,  Wei-Hsiu Hung

IPC: H02M1/00

Abstract: A control circuit of a power converter and a control method thereof are provided. The control circuit includes an error amplifier, a controller, a digital filter, and a digital pulse width signal modulator. The error amplifying circuit is coupled to an output terminal of the power converter and provides a digital error signal. The controller provides a first working parameter corresponding to the first external control command when receiving a first external control command. The digital filter generates a current digital compensation value. The digital pulse width signal modulator generates a pulse width modulation signal. The controller provides a second working parameter corresponding to the second external control command when receiving a second external control command. The controller calculates a transition value according to the second working parameter and the current digital compensation value. The controller provides the second working parameter and the transition value to the digital filter.

公开(公告)号：US11962239B2

公开(公告)日：2024-04-16

申请号：US17946036

申请日：2022-09-16

Applicant: uPI Semiconductor Corp.

Inventor： Yun-Kuo Lee ,  Wei-Hsiang Wang ,  Yen-Chih Lin ,  Wei-Hsiu Hung

IPC: H02M3/157 ,  H02M1/00

CPC classification number: H02M3/157 ,  H02M1/0019 ,  H02M1/0025

Abstract: A control circuit of a power converter and a control method thereof are provided. The control circuit includes an error amplifier, a controller, a digital filter, and a digital pulse width signal modulator. The error amplifying circuit is coupled to an output terminal of the power converter and provides a digital error signal. The controller provides a first working parameter corresponding to the first external control command when receiving a first external control command. The digital filter generates a current digital compensation value. The digital pulse width signal modulator generates a pulse width modulation signal. The controller provides a second working parameter corresponding to the second external control command when receiving a second external control command. The controller calculates a transition value according to the second working parameter and the current digital compensation value. The controller provides the second working parameter and the transition value to the digital filter.