DC-DC converter

Details DC-DC converter DC-DC converter

1987-01-15

1988-08-09

Wong, Peter S.

Electric power conversion systems

Current conversion

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

363 97, H02M 3335

Patent

active

047632364

ABSTRACT:
A DC-DC converter for supplying stabilized DC power to a load comprises a transformer, a switch, a starting circuit, a resistor, a capacitor, a control circuit, and a rectifying and smoothing circuit. The transformer has a primary winding, a secondary winding and a tertiary winding. The primary winding of the transformer is connected in series to the switch. The secondary winding of the transformer is connected to the rectifying and smoothing circuit, and the tertiary winding is connected to a control terminal of the switch so as to drive the switch by positive feedback voltage. The capacitor is charged and discharged in response to the ON/OFF operation of the switch. The control circuit converts the switch from the ON state into the OFF state in response to the voltage of the control circuit. The power loss of the DC-DC converter is little.

REFERENCES:
patent: 4183080 (1980-01-01), Liebman

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