Chopper-stabilized power supply

Details Chopper-stabilized power supply Chopper-stabilized power supply

1975-10-20

1977-07-05

Pellinen, A. D.

Electricity: power supply or regulation systems

Remote sensing

323DIG1, 363124, G05F 156

Patent

active

040342824

ABSTRACT:
A chopper-stabilized power supply which comprises a switching transistor connected with an integrating filter between a source of unstabilized d.c. energy and a load circuit. A voltage comparator compares the output voltage of the supply to a reference voltage and delivers a rectangular control signal to a control transistor which controls the base current of the switching transistor. In the collector-emitter circuit of the control transistor, there is provided an inductor which is the primary winding of a transformer, the transformer also comprising a secondary winding connected in series with a diode to the base of the switching transistor for neutralizing the charge carriers present in the junction at each cut-off of the current of the control transistor.

REFERENCES:
patent: 3492503 (1970-01-01), Bose
patent: 3590361 (1971-06-01), Bishop et al.
patent: 3631314 (1971-12-01), Hendrikus
patent: 3820008 (1974-06-01), Guarnaschelli
patent: 3839668 (1974-10-01), Black
Hoffman et al., "Transistor Fast Turnoff Insensitive to Drive Transition," IBM TDB vol. 17, No. 4, Sept. 1974, pp. 1089-1090.

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