Switching mode power supply

Details Switching mode power supply Switching mode power supply

1987-05-07

1988-05-10

Salce, Patrick R.

Electric power conversion systems

Current conversion

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

363 56, 363 97, 323289, H02M 3335

Patent

active

047440201

ABSTRACT:
A switching mode power supply where an input rectified voltage feeds in chopped mode the primary winding of a power transformer under the control of a transistor turned on by voltage pulses periodically generated by an oscillator directly fed by the input voltage and applied to the transistor through a control transformer, said transistor being turned off by a voltage pulse generated by regulating circuits fed by the output voltage of the power supply and applied to the transistor through the same control transformer which is further provided with a winding where anelectromotive force is induced which is proportional to the current flowing through the primary winding of the power transformer.

REFERENCES:
patent: 3983418 (1976-09-01), Wallace
patent: 4092711 (1978-05-01), Gerding et al.
patent: 4128867 (1978-12-01), Heyman
patent: 4277824 (1981-07-01), Alberkrack
patent: 4629971 (1986-12-01), Kirk

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