Power supply with chopping circuit

Details Power supply with chopping circuit Power supply with chopping circuit

1975-12-04

1977-05-24

Beha, Jr., William H.

321 14, H02P 1322

Patent

active

040258629

ABSTRACT:
An improved power supply apparatus for providing a stabilized low voltage d.c. output from the a.c. mains, comprises two distinct chopper stages, each having its regulation control loop which operates by duty cycle control. The first loop includes a current limiter and provides a rough regulation of the output voltage as a function of the mains variations, whereas the second loop provides a fine regulation of the output voltage as a function of the load variations, and isolation with respect to the load.

REFERENCES:
patent: 3551777 (1970-12-01), Bigley
patent: 3702434 (1972-11-01), Ryan
patent: 3818308 (1974-06-01), Tamari
patent: 3840798 (1974-10-01), Burchall
patent: 3909702 (1975-09-01), Hart

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