Blocking oscillator switched power supply with standby circuitry

Details Blocking oscillator switched power supply with standby circuitry Blocking oscillator switched power supply with standby circuitry

1986-10-17

1988-04-26

Salce, Patrick R.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363 21, H02M 7537

Patent

active

047408790

ABSTRACT:
A circuit for providing standby operation in a switched power supply with a blocking oscillator, includes a control circuit, an electronic switch driven by the control circuit, and a transformer having a primary winding connected in series with the electronic switch, a first secondary winding supplying power supply to a normal load of electrical equipment, a second secondary winding driving the control circuit, and a further transformer winding strongly coupled to the primary winding and loosely coupled to the first secondary winding for generating a control signal for a standby load supply.

REFERENCES:
patent: 4228493 (1980-10-01), de Sartre et al.
patent: 4486822 (1984-12-01), Marinus
patent: 4564820 (1986-01-01), Peruth et al.
patent: 4593347 (1986-06-01), Peruth et al.
patent: 4595977 (1986-06-01), von de Ohe
patent: 4597036 (1986-06-01), Paulix et al.
patent: 4631652 (1986-12-01), Wendt
patent: 4631654 (1986-12-01), Houre et al.
patent: 4692852 (1987-09-01), Hoover

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