Inductor current-sensing circuitry

Details Inductor current-sensing circuitry Inductor current-sensing circuitry

1992-09-29

1996-01-02

Wong, Peter S.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 98, H02M 112

Patent

active

054814464

ABSTRACT:
A pulse width modulated system for driving an inductive load. In the system, a switched current is supplied to the load. A duty cycle of the switched current is derived from a pulse width modulation controller and the amplitude of the switched current is determined. A multiplier device is provided to process the amplitude of the current supplied to a driver stage and to derive, in conjunction with the duty cycle, the load current.

REFERENCES:
patent: 4409535 (1983-10-01), Hickman
patent: 4458194 (1984-07-01), Geppert et al.
patent: 4520437 (1985-05-01), Boettcher, Jr. et al.
patent: 4694194 (1987-09-01), Hansel et al.
patent: 5097403 (1992-03-01), Smith
patent: 5204594 (1993-04-01), Carobolante

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