Stabilizing power source apparatus

Details Stabilizing power source apparatus Stabilizing power source apparatus

1985-12-30

1987-06-30

Salce, Patrick R.

Electric power conversion systems

Current conversion

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

363 26, 363 97, 323267, H02M 3335

Patent

active

046775340

ABSTRACT:
A stabilizing power source apparatus includes a transformer with one primary and two secondary coils, a switching transistor, first and second differential amplifiers, an oscillator, and a pulse modulator. The oscillator generates a triangular wave of variable frequency. The modulator changes the pulse width and frequency of its output in accordance with a shift of a crossing point between the leading ramp of the triangular wave and the signal from the first differential amplifier. The pulse drives the switching transistor, so that the duty factor of the transistor stabilizes a DC output voltage and a switching frequency thereof stabilizes an AC output voltage. Another stabilizing power source apparatus includes a saturable reactor for stabilizing the DC output voltage and a resonance type inverter to generate a sinusoidal wave voltage.

REFERENCES:
patent: 4371918 (1983-02-01), Schierjott
patent: 4451876 (1984-05-01), Ogata
patent: 4486823 (1984-12-01), Palm
patent: 4535399 (1985-08-01), Szepesi

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