Dual edge pulse width modulation system

Details Dual edge pulse width modulation system Dual edge pulse width modulation system

1992-05-29

1993-03-30

Grimm, Siegfried H.

Modulators

Pulse or interrupted continuous wave modulator

Pulse width modulator

375 22, 307265, H03K 708

Patent

active

051987856

ABSTRACT:
A dual edge pulse width modulation system includes a ramp generator for generating a voltage ramp; an n bit digital to analog converter having a normal and an inverted output for establishing a leading edge and a trailing edge reference; a comparator responsive to the ramp and the leading edge and trailing edge references, respectively, for defining the leading edge and the trailing edge of a pulse; and a pulse generator for producing a pulse having the width determined by the defined leading and trailing edges.

REFERENCES:
patent: 4891828 (1990-01-01), Kawazoe
patent: 5045800 (1991-09-01), Kung
patent: 5119045 (1992-06-01), Sato

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