Average current controlled switching regulator utilizing digital

Details Average current controlled switching regulator utilizing digital Average current controlled switching regulator utilizing digital

1979-06-18

1982-01-05

Pellinen, A. D.

Electricity: power supply or regulation systems

Output level responsive

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

323285, H02P 1332

Patent

active

043096506

ABSTRACT:
A current controlled switching type voltage regulator achieves voltage regulation by controlling an average current flow through the switching device. This current is sensed and transformed into a signal frequency. The signal frequency is counted to determine its average value and this count is compared to a variable current reference count which is continuously adjusted in response to an output voltage monitor which includes circuitry to generate an error count responsive to the deviation of the voltage output from a desired regulated value. In order to counteract instability problems inherent in current controlled switching type voltage regulators the transducer converting current into a signal frequency has a threshold characteristic to insure a definite fixed signal frequency at very low currents.

REFERENCES:
patent: 3536987 (1970-10-01), Muchnick
patent: 4002963 (1977-01-01), Hunter
patent: 4039897 (1977-08-01), Dragoset
patent: 4095165 (1978-06-01), Boros
patent: 4109194 (1978-08-01), Miller
patent: 4146832 (1979-03-01), McConnell
patent: 4148097 (1979-04-01), Deisch

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