AC-DC chopper converter type of supply

Details AC-DC chopper converter type of supply AC-DC chopper converter type of supply

1990-11-16

1991-12-10

Stephan, Steven L.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363124, 323263, 323284, H02M 704

Patent

active

050723553

ABSTRACT:
Disclosed is a supply of the AC-DC converter type where the regulation is achieved by successive operations for charging and discharging a capacitor. The supply includes an input oscillator circuit, the period of which is very small as compared with that of the input AC voltage. A first switch is closed during the time necessary for the charging of the capacitor of the oscillator circuit. When it opens, a second switch gets closed to enable the transfer of energy towards the load. The regulation is done by an oscillator circuit which is controlled by an error voltage on the load and which triggers a monostable trigger circuit to close the first switch and open the second one during the period when this monostable trigger circuit is in its quasi-stable state.

REFERENCES:
patent: 4118641 (1978-10-01), Lannuzel
patent: 4347474 (1982-08-01), Brooks et al.
patent: 4591963 (1986-05-01), Retotar
patent: 4720667 (1988-01-01), Lee et al.
patent: 4814685 (1988-03-01), Renger
Patent Abstracts of Japan, vol. 7, No. 251 (E-209)(1396), Nov. 8, 1983, & JP-A-58-136265, Aug. 13, 1983, T. Kitajima, "Input/Output Non-Insulating Type Switching Power Source".

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