Circuit for driving a switched reluctance motor

Details Circuit for driving a switched reluctance motor Circuit for driving a switched reluctance motor

1997-03-07

1999-08-17

Salata, Jonathan

Electricity: motive power systems

Synchronous motor systems

Hysteresis or reluctance motor systems

318254, H02P 736

Patent

active

059398540

ABSTRACT:
A switch reluctance motor drive circuit includes first drive circuits (50) for driving a plurality of high switching elements (23, 24, 25), in response to an input signal (H.sub.in) for driving a gate of the high switching element, and second drive circuits (52) for driving a low switching elements (26, 27, 28), in response to an input signal (L.sub.in) for driving the gates of the low switching element. A single DC voltage source is commonly applied to the first drive circuits, and the first drive circuits each have a transistor (T1) connected between a gate (G) of the switching element (e.g., 23) and the DC voltage source to turn on the switching element (23) corresponding thereto, and a second transistor (T2) connected between the gate (G) and source (S) of the switching element (23) to turn off the switching element (23). A single DC voltage source is commonly applied to second drive circuits, and the second drive circuits each have a third transistor (T3) connected between the gate (G) of the switching element (26) and the DC voltage source to turn on the switching element (e.g., 26) corresponding thereto, and a fourth transistor (T4) connected between the gate (G) and source (S) of the switching element (26) to turn off the switching element (26).

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