公开(公告)号：US20230130783A1

公开(公告)日：2023-04-27

申请号：US17682747

申请日：2022-02-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Naman BAFNA ,  Cheng Wei Chen ,  Preetam Charan Anand Tadeparthy ,  Sreelakshmi Suresh ,  Ammineni Balaji Balaji

IPC: H02M3/158 ,  H02M1/00

Abstract: An example circuit includes a loop controller having current phase inputs, a feedback input, a control loop output and a transient event output. The feedback input is adapted to be coupled to an output terminal of a multi-phase power stage. A PWM circuit has a blanking input, a control input and a PWM output, the control input coupled to the control loop output. A phase management circuit has a transient detect input, a PWM input, a blanking output and phase outputs. The transient detect input is coupled to the transient event output. The PWM input is coupled to the PWM output and the blanking output is coupled to the blanking input. Each of the phase outputs is adapted to be coupled to a respective phase of the multi-phase power stage. The phase management circuit is configured to provide a blanking control signal representative of a variable blanking time.