Pulse width controller adopting feedback PWM integration system

Details Pulse width controller adopting feedback PWM integration system Pulse width controller adopting feedback PWM integration system

1995-05-26

1996-05-21

Grimm, Siegfried H.

Modulators

Pulse or interrupted continuous wave modulator

Pulse width modulator

375238, H03K 708

Patent

active

055193617

ABSTRACT:
A pulse width controller comprising a circuit for generating a carrier signal; a carrier synchronization circuit for generating a carrier synchronous variable pulse signal that varies in accordance with the voltage level of the carrier signal; an integrator for integrating a reference signal, the carrier signal and the carrier synchronous variable pulse signal to generate an integrated input signal; a comparator for comparing the integrated input signal with a comparison signal to generate a compared input signal; and a circuit for synchronizing the compared input signal with one or more of the carrier signal and carrier synchronous variable pulse signal to generate a synchronous input signal and providing the synchronous input signal to the input of the integrator to be integrated with other signals.

REFERENCES:
patent: 4145652 (1979-03-01), Hayashi
patent: 5457435 (1995-10-01), Hoffman

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