Three state driver for inductive loads

Details Three state driver for inductive loads Three state driver for inductive loads

1982-11-08

1985-01-29

Truhe, J. V.

Electricity: motive power systems

Switched reluctance motor commutation control

318332, 318373, 318375, 318678, H02P 706, H02P 600

Patent

active

044968868

ABSTRACT:
A three state driver for an inductive load, e.g., a stator winding of a variable reluctance motor, allows the use of charge, idle, and discharge states in which a positive voltage, a short, and a reverse voltage are connected across the inductive load, respectively. An H-bridge comprising two electronic switches and two diodes is used to switch the inductive load voltages as commanded by a comparator circuit which compares the load current to a desired load current.

REFERENCES:
patent: 3652913 (1972-03-01), Leland
patent: 4066945 (1978-01-01), Korte, Jr.
patent: 4319170 (1982-03-01), Brent
patent: 4347464 (1982-08-01), Park et al.

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