Pulse width modulated driver

Details Pulse width modulated driver Pulse width modulated driver

1994-03-25

1995-10-10

Mis, David

Modulators

Pulse or interrupted continuous wave modulator

Pulse width modulator

332109, H03K 708

Patent

active

054574358

ABSTRACT:
The present invention an apparatus provides a pulse width modulated signal to a load in response to an input signal. The apparatus receives the input signal and a feedback signal, determines a difference between the received signals, integrates the difference, and responsively produces an error signal. The error signal is compared with a reference wave signal and a correction signal is produced. The apparatus produces the pulse width modulation signal by conditioning the correction signal. The apparatus determines the feedback signal by attenuating the pulse width modulation signal in a manner similar to the attenuation caused by the load.

REFERENCES:
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patent: 4509547 (1985-04-01), Smith et al.
patent: 4524335 (1985-06-01), Yokoyama
patent: 4591810 (1986-05-01), Mackenzie et al.
patent: 4641683 (1987-02-01), Murner
patent: 4960365 (1990-10-01), Horiuchi
patent: 5113158 (1992-05-01), Tsuji et al.

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