公开(公告)号：US12028076B1

公开(公告)日：2024-07-02

申请号：US18174823

申请日：2023-02-27

Applicant: Renesas Electronics America Inc.

Inventor： Richard Ernest Geiss

IPC: H03K5/135 ,  H03K5/00

CPC classification number: H03K5/135 ,  H03K2005/00019

Abstract: A circuit and corresponding method for determining a delay are presented. The circuit includes a delay circuit, a feedback circuit and a controller. The delay circuit receives an input signal having an input edge and provides an output signal having an output edge. The input edge and the output edge are separated by a delay. The feedback circuit causes the delay circuit to generate a series of consecutive output pulses. The controller sets the delay to a first delay value and measures a first period of output pulses; sets the delay to a second delay value and measure a second period of output pulses. The controller then calculates the delay based on a difference between the first period and the second period.