Switching power supply apparatus for converting a high DC voltag

Details Switching power supply apparatus for converting a high DC voltag Switching power supply apparatus for converting a high DC voltag

1996-10-23

1998-06-30

Wong, Peter S.

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

323274, 323284, G05F 110, G05F 140

Patent

active

057739650

ABSTRACT:
A power supply circuit has a switching transistor and a inductance coil that are connected between an input terminal and an output terminal. A voltage across a capacitor that is connected between the output terminal and a ground potential node is extracted as an output voltage. Between the output terminal and the ground potential node, a Zener diode and a resistor are connected in series. When a voltage across the resistor exceeds a predetermined value, the switching transistor is put into a cut-off state by a drive circuit.

REFERENCES:
patent: 4760324 (1988-07-01), Underhill
patent: 4829259 (1989-05-01), Konopka
patent: 4862013 (1989-08-01), Konopka
patent: 4885522 (1989-12-01), Konopka
patent: 4893228 (1990-01-01), Orrick et al.
patent: 5105144 (1992-04-01), Trump
patent: 5280233 (1994-01-01), Poletto et al.
patent: 5422562 (1995-06-01), Mammano et al.
patent: 5469046 (1995-11-01), Wong et al.
patent: 5510697 (1996-04-01), Dormer
patent: 5574357 (1996-11-01), Otake et al.

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