DC motor driver having output FETS that conduct to rectify outpu

Details DC motor driver having output FETS that conduct to rectify outpu DC motor driver having output FETS that conduct to rectify outpu

1998-04-28

1999-03-23

Wysocki, Jonathan

Electricity: motive power systems

Switched reluctance motor commutation control

318439, H02B 700

Patent

active

058864873

ABSTRACT:
A motor-winding driver circuit includes a high-side double-diffused metal-oxide-semiconductor (DMOS) field-effect transistor (FET) connected between a direct-current (DC) power supply node and a driver output node, and a low-side DMOS FET connected between the driver output node and ground. A high-side drive circuit and a low-side drive circuit regulate the driver output voltage to prevent a parasitic bipolar PNP transistor in the high-side FET from conducting, so that latchup is avoided. A parasitic N+/P-substrate diode in the low-side FET is also prevented from conducting. The low-side and high-side driver circuits have additional circuitry causing them to act as active clamp circuits during extreme over- or under-voltage conditions. A body-switching circuit connects the body of the high-side DMOS FET to the driver output node during normal operation, and connects the body to the DC supply node when the driver output voltage exceeds the DC source voltage.

REFERENCES:
patent: 4364004 (1982-12-01), Bourbeau
patent: 4384242 (1983-05-01), Ono
patent: 4686436 (1987-08-01), Archer
patent: 4958115 (1990-09-01), Miller
patent: 5041768 (1991-08-01), Herrmann
patent: 5119000 (1992-06-01), Schultz
patent: 5331258 (1994-07-01), Lankin et al.
patent: 5397967 (1995-03-01), Carobolante et al.
patent: 5504402 (1996-04-01), Menegoli
patent: 5513058 (1996-04-01), Hollenbeck
patent: 5610486 (1997-03-01), Li

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