Regulator with rectifier IR drop compensation

Details Regulator with rectifier IR drop compensation Regulator with rectifier IR drop compensation

1985-12-17

1987-03-24

Salce, Patrick R.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 53, 323267, H02P 1326

Patent

active

046529870

ABSTRACT:
A regulator for compensating for the IR drop of a rectifier coupled between the secondary winding of a transformer and a load circuit includes a pass transistor connected between the load circuit and the rectifier. A DC reference voltage is developed by a circuit connected across the secondary winding that is not subject to current fluctuations. A differential amplifier is supplied with the reference voltage as one input and the load voltage as another input. The output of the differential amplifier controls the conductivity of the pass transistor. A current limiting transistor is included in the base circuit of the pass transistor and, in turn, is controlled by another differential amplifier supplied with potentials representative of the IR drop across the rectifier. A shut down transistor is provided for cutting of the pass transistor in the event the load circuit voltage drops below a predetermined level.

REFERENCES:
patent: 3435295 (1969-03-01), Ladd, Jr. et al.
patent: 3566246 (1971-02-01), Seer, Jr.
patent: 3886410 (1975-05-01), Seer, Jr.
patent: 3979610 (1976-09-01), Gordon
patent: 4017789 (1977-04-01), Morris
patent: 4439819 (1984-03-01), Regan

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