Pulse width modulation signal generating circuit

Details Pulse width modulation signal generating circuit Pulse width modulation signal generating circuit

1992-12-28

1994-03-29

Grimm, Siegfried H.

Modulators

Pulse or interrupted continuous wave modulator

Pulse width modulator

318599, 318684, 318811, H03K 708, H02P 602

Patent

active

052988716

ABSTRACT:
A microcomputer having a signal generating circuit which generates pulse width modulation signals defined by a carrier wave, and which controls controlled portions according to pulse width modulating signals. The signal generating circuit comprises a carrier wave defining timer which outputs a value varying the same as a waveform providing a carrier wave, a control register which controls the time period of the timer, a reload register which holds a count value, control blocks which generate pulse width modulation signals according to the value of the timer and the count value of the reload register.

REFERENCES:
patent: 4105939 (1978-08-01), Culbertson
patent: 5013985 (1991-05-01), Itoh et al.

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