公开(公告)号：US20230006546A1

公开(公告)日：2023-01-05

申请号：US17364147

申请日：2021-06-30

Applicant: STMicroelectronics S.r.I.

Inventor： Juri Giovannone ,  Valeria Bottarel ,  Stefano Corona

IPC: H02M3/04 ,  H03K5/24

Abstract: A direct current (DC) to DC (DC-DC) converter includes a comparator setting a pulse width of a signal pulse, the pulse width corresponding to a voltage level of an output voltage of the DC-DC converter; a digital delay line (DDL) operatively coupled to the comparator, the DDL adjusting the pulse width of the signal pulse by linearly introducing delays to the signal pulse; a multiplexer operatively coupled to the DDL, the multiplexer selectively outputting a delayed version of the signal pulse; a phase detector operatively coupled to a system clock and the multiplexer, the phase detector generating a phase error between an output of the multiplexer and the system clock; and a logic control circuit operatively coupled to the multiplexer and the DDL, the logic control circuit adjusting the delay introduced to the signal pulse in accordance with the phase error.