Switching regulator having improved switching control arrangemen

Details Switching regulator having improved switching control arrangemen Switching regulator having improved switching control arrangemen

1990-04-06

1991-11-05

Stephan, Steven L.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 97, 323902, H02M 3335

Patent

active

050634895

ABSTRACT:
In order to obtain a stable dc output from a switching regulator of a type in which a switching control arrangement is provided with an optical coupler, an A-D converter is arranged to provide the optical coupler with a digital error signal. This error signal corresponds to a difference between the regulated dc output and a reference voltage. The digital output of the optical coupler is converted into a corresponding analog signal at a D-A converter. The output of the D-A converter is applied to a comparator and is compared thereat with a reference signal voltage for controlling a switching device.

REFERENCES:
patent: 3909702 (1975-09-01), Hart
patent: 4156273 (1979-05-01), Sato
patent: 4196320 (1980-04-01), Townsend
patent: 4378585 (1983-03-01), Bete
patent: 4521672 (1985-06-01), Fronius
patent: 4761724 (1988-08-01), Brown et al.

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