Invention Grant
- Patent Title: Low electromagnetic interference and switch loss motor driver
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Application No.: US16459814Application Date: 2019-07-02
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Publication No.: US11218072B2Publication Date: 2022-01-04
- Inventor: Rajarshi Mukhopadhyay , Sooping Saw , Anuj Jain
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Brian D. Graham; Charles A. Brill; Frank D. Cimino
- Main IPC: H02P6/08
- IPC: H02P6/08 ; H02M1/44 ; H02M7/5387 ; H02M1/00

Abstract:
Modulating a gate drive current supplied to an output drive switch coupled to an electric motor by performing at least the following: obtain a gate drive current modulation profile, supply, based on the gate drive current modulation profile, a first gate drive current level as the gate drive current when the output drive switch is operating within a first region, drop the first gate drive current level to a second gate drive current level when the output drive switch transitions from the first region to operating within a Miller region, increase the second gate drive current level to a third gate drive current level within the Miller region, and set the gate drive current to a fourth gate drive current level when the output drive switch transitions from the Miller region to operating within a third region.
Public/Granted literature
- US20190326902A1 LOW ELECTROMAGNETIC INTERFERENCE AND SWITCH LOSS MOTOR DRIVER Public/Granted day:2019-10-24
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