Low noise motor drive circuit

Details Low noise motor drive circuit Low noise motor drive circuit

1991-02-25

1992-06-02

Wysocki, A. Jonathan

Electricity: motive power systems

Switched reluctance motor commutation control

318293, 363132, H02P 600

Patent

active

051190001

ABSTRACT:
A normally non-conducting motor drive transistor is connected in parallel with a freewheeling diode. The transistor is briefly enabled while reverse recovery transition current is flowing in the freewheeling diode and thereby reduces noise created by the diode when it switches from conducting reverse recovery current to blocking reverse voltage.

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patent: 4947309 (1990-08-01), Jonsson
patent: 5055990 (1991-10-01), Mini et al.

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