Structure of pulse-width modulator

Details Structure of pulse-width modulator Structure of pulse-width modulator

1998-10-28

2000-05-16

Grimm, Siegfried H.

Modulators

Pulse or interrupted continuous wave modulator

Pulse width modulator

327175, 327176, H03K 708

Patent

active

060642785

ABSTRACT:
A compact structure of a pulse-width modulator is provided which includes a clock generator, a counter, a D/A converter, a comparator, and a latching circuit. The clock generator generates clock signals. The counter counts the clock signals and provides a count signal indicative thereof in a digital form. The D/A converter converts the count signal into an analog signal. The comparator compares the analog signal converted by said D/A converter with an input signal to be pulse-width modulated to provide an output indicative thereof. The latching circuit latches the output of the comparator in response to a latch signal shifted from a change in level of the count signal to provide a pulse-width modulated signal.

REFERENCES:
patent: 5277497 (1994-01-01), Enomoto
patent: 5481214 (1996-01-01), Tamaki et al.
patent: 5742249 (1998-04-01), Hicok et al.

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