Voltage stabilized self-oscillating power supply

Details Voltage stabilized self-oscillating power supply Voltage stabilized self-oscillating power supply

1997-02-14

1998-11-17

Berhane, Adolf

Electric power conversion systems

Current conversion

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

363 19, 320140, H02M 3335, H02J 710

Patent

active

058385533

ABSTRACT:
In a self-oscillating power-supply circuit for charging a battery, the main switching transistor is turned off by a second switching transistor (T2) of an opposite conductivity type, which is arranged in series with the main switching transistor (T1) via a sensing resistor (R8). This configuration allows rapid switching of the main switching transistor (T1). The power-supply circuit can be turned on and off in a simple manner (R7, T4). Moreover, it is simple to provide a compensation (R4) for varying mains voltages, an auxiliary voltage (D6, C4) for powering additional circuits (R9, R10), which auxiliary voltage also remains available when the power-supply circuit is turned off.

REFERENCES:
patent: 4652984 (1987-03-01), Van Der Akker et al.
patent: 4684871 (1987-08-01), Plagge
patent: 4710695 (1987-12-01), Yamada et al.
patent: 5012399 (1991-04-01), Takemura et al.
patent: 5390100 (1995-02-01), Pacata
patent: 5412555 (1995-05-01), Uramoto

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