32V H-bridge driver with CMOS circuits

Details 32V H-bridge driver with CMOS circuits 32V H-bridge driver with CMOS circuits

2005-01-25

2005-01-25

Nguyen, Minh (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C360S046000, C363S063000

Reexamination Certificate

active

06847237

ABSTRACT:
A motor bridge driver interface, implemented in an ASIC using cost-efficient CMOS technology, is designed to control four external MOS power transistors in a H-bridge configuration for DC-motor driving to achieve accurate and fast switching. Main components of the -interface are comprising a charge pump for generating the control voltage for the high-side N-channel MOS transistors, high-side (HSD) circuits, low-side (LSD) circuits and a complex digital interface for supplying the control signals in a programmable timing scheme. A “strong” charge pump is used to realize a simple CMOS switch to steer the output to the high-side transistors of said H-bridge. The motor bridge is connected to the battery supply by an additional N-channel MOS transistor to implement a reverse supply protection.

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patent: 19803040 (1998-08-01), None
patent: 1193824 (2002-04-01), None

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