Switching regulator provided with charge-discharge circuit havin

Details Switching regulator provided with charge-discharge circuit havin Switching regulator provided with charge-discharge circuit havin

1979-08-13

1981-06-09

Pellinen, A.D.

Electric power conversion systems

Current conversion

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

363 49, 363 56, H02M 3335

Patent

active

042728053

ABSTRACT:
A switching regulator in which an input DC voltage is chopped and then applied to drive a transformer from which an AC voltage is derived which in turn is rectified in a rectifier circuit, and the output of the rectifier circuit is compared with a first reference voltage so that an output is provided which corresponds to the difference between the two voltages compared with each other and which causes a current to be charged at a capacitor incorporated in a charge-discharge circuit which is arranged to vary the charged current, and the output of the charge-discharge circuit is compared with a second reference voltage so that a trigger signal is produced and applied to the base of a switching transistor only when the output of the charge-discharge circuit exceeds the second reference voltage.

REFERENCES:
patent: Re29510 (1978-01-01), Hull
patent: 4121282 (1978-10-01), Ohsawa
patent: 4130862 (1978-12-01), Holt

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