Regulated switching mode power supply

Details Regulated switching mode power supply Regulated switching mode power supply

1978-06-14

1980-06-24

Shoop, William M.

Electric power conversion systems

Current conversion

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

323DIG1, H02M 3335

Patent

active

042098262

ABSTRACT:
A switching mode power supply characterized by an output in the forward conversion mode and a separate output in the flyback mode whereby a device having variable power requirements in one aspect of its operation, and a stable power requirement another aspect of its operation may be powered without interference as between the two sources of power. The flyback power output is monitored for voltage regulation, regulation being achieved by a constant-off-time variable-on-time switch. The power supply likewise includes novel protective circuitry to shut it down in the event of excessive voltage or current therein.

REFERENCES:
patent: 3331012 (1967-07-01), Aiken
patent: 3440520 (1969-04-01), Jones et al.
patent: 3483428 (1969-12-01), LaPlante
patent: 3504263 (1970-03-01), Schaefer
patent: 3564393 (1971-02-01), Williamson
patent: 3599082 (1971-08-01), Besler
patent: 3740640 (1973-06-01), Ravas et al.
patent: 4007425 (1977-02-01), Salisbury
patent: 4020408 (1977-04-01), Grant
patent: 4037271 (1977-07-01), Keller
patent: 4135233 (1979-01-01), Seiersen
"Low Cost 100W Off-Line Isolated Switching-Mode Power Supply", Texas Instruments Application Report No. B174,pp. 1-9.

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