D.C. voltage supply circuit

Details D.C. voltage supply circuit D.C. voltage supply circuit

1988-04-27

1989-02-21

Wong, Peter S.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

323222, 323285, 363 89, G05F 146

Patent

active

048068438

ABSTRACT:
A d.c. supply circuit containing a series-circuit composed of a switch and an inductor. A regulator circuit is provided to alternatingly drive the switch into conductive and nonconductive states. The control is performed by the inductor and responsive to current (i.sub.L).
The series-circuit also includes an auxiliary switch, to which is connected, in parallel, a series-circuit formed by a diode and a capacitor. In short periods, in which the switch is conductive while the auxiliary switch is nonconductive, the capacitor is charged in order to generate the supply voltage for the regulator circuit.

REFERENCES:
patent: 3975672 (1976-08-01), Lachocki
patent: 4626982 (1986-12-01), Huber
patent: 4695785 (1987-09-01), Mieth et al.

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