Blocking oscillator-switched power supply with peak current redu

Details Blocking oscillator-switched power supply with peak current redu Blocking oscillator-switched power supply with peak current redu

1986-10-17

1988-04-26

Salce, Patrick R.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363 21, 363 49, H02M 3335

Patent

active

047408804

ABSTRACT:
A circuit for reducing peak current in dependence on line voltage in a blocking oscillator-switched power supply, includes a transformer having a primary winding and a control winding, an electronic switch connected in series with the primary winding, and a control circuit supplied by the control winding for controlling the electronic switch, the control circuit including a pulse processing stage addressed by rectified a-c line voltage fed into the primary winding, a start-up stage, and a variable voltage coupling stage coupling the pulse-processing stage to the start-up stage.

REFERENCES:
patent: 4063307 (1977-12-01), Stephens
patent: 4208705 (1980-06-01), Hosoya
patent: 4361865 (1982-11-01), Shono
patent: 4450514 (1984-05-01), Peruth
patent: 4459651 (1984-07-01), Fenter

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