Regulated power supply

Details Regulated power supply Regulated power supply

1976-04-16

1980-01-08

Pellinen, A. D.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

323 20, 323 22T, 323 25, H02M 7217

Patent

active

041830822

ABSTRACT:
A regulated power supply capable of providing an output DC voltage of substantially constant level determined by an AC line voltage to a load irrespective of variations in load current. The regulated power supply comprises first and second rectifiers adapted to generate unregulated DC voltages in accordance with an input AC voltage, a control circuit coupled between the load and the first rectifier and including at least one active device, and a voltage comparator adapted to compare the output of the second rectifier and the output of the detector and generate an output proportional to a difference between the second rectifier output and the detector output, thereby controlling the control circuit and regulating the DC voltage to a constant level corresponding to the input AC voltage irrespective of variations in load current. The regulated power supply can prominently decrease a permissible dissipation of the active device in the control circuit and it is therefore very suitable for a power supply in an audio amplifier.

REFERENCES:
patent: 3564388 (1971-02-01), Nolf
patent: 3566246 (1971-02-01), Seer
patent: 3581187 (1971-02-01), Grady
patent: 3697854 (1972-10-01), Berger

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