公开(公告)号：US20200212830A1

公开(公告)日：2020-07-02

申请号：US16236983

申请日：2018-12-31

Applicant: c/o Texas Instruments Incorporated

Inventor： Michael Edwin Butenhoff ,  Rakesh Raja ,  Nicholas James Oborny

IPC: H02P7/285 ,  H03K17/16

Abstract: Enhanced motor power control circuitry is presented herein. In one implementation, a circuit includes power transistor elements in a half-bridge arrangement configured to selectively switch current for a phase of a motor according to control signals applied to corresponding gate terminals. The circuit also includes control circuitry configured to produce the control signals to achieve target states among the power transistor elements. The control signals have ramp rates determined based at least on polarities of the current through the power transistor elements during inactive states.