Invention Grant
- Patent Title: Thermal management of power stages for passive motor braking
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Application No.: US17863751Application Date: 2022-07-13
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Publication No.: US12074555B2Publication Date: 2024-08-27
- Inventor: Hannes Mathias Geike
- Applicant: Infineon Technologies Austria AG
- Applicant Address: AT Villach
- Assignee: Infineon Technologies Austria AG
- Current Assignee: Infineon Technologies Austria AG
- Current Assignee Address: AT Villach
- Agency: Harrity & Harrity, LLP
- Main IPC: H02P6/12
- IPC: H02P6/12 ; H02P6/24

Abstract:
A method of passively braking a motor to reduce a current motor speed includes generating at least one control signal to control a first load current generated by a first half bridge circuit and a second load current generated by a second half bridge circuit. During passive braking, the method includes synchronously driving a first high-side transistor and a second high-side transistor between their respective switching states at an alternating shorting frequency such that they are simultaneously in a same switching state, and synchronously driving a first low-side transistor and a second low-side transistor between their respective switching states at the alternating shorting frequency such that they are simultaneously in a same switching state, wherein the first high-side transistor and the second high-side transistor are driven in a complementary manner to the first low-side transistor and the second low-side transistor according to a predetermined duty cycle.
Public/Granted literature
- US20240022188A1 THERMAL MANAGEMENT OF POWER STAGES FOR PASSIVE MOTOR BRAKING Public/Granted day:2024-01-18
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