Rectifier circuits using transistors as rectifying elements

Details Rectifier circuits using transistors as rectifying elements Rectifier circuits using transistors as rectifying elements

1974-11-22

1976-02-24

Shoop, William M.

321 2, H02M 723, H02M 721

Patent

active

039406822

ABSTRACT:
Full-wave and half-wave rectifier circuits are disclosed; the former circuit using two transistors and the latter circuit using one transistor. In both circuits transistors are connected in an inverted mode so that, for example, with an NPN transistor current flow is such that line current flows into the emitter and load current flows out of the collector. Furthermore, voltage blocking is performed by the collector-base junction instead of the emitter-base junction. High efficiency is achieved by controlling the transistor base current in response to the emitter current so that the base current is proportional to the emitter current and is also at an optimum magnitude so as to minimize circuit losses.

REFERENCES:
patent: 3581186 (1971-05-01), Weinberger
patent: 3582758 (1971-06-01), Gunn
patent: 3667028 (1972-05-01), Leufgen
patent: 3735235 (1973-05-01), Hamilton et al.
IBM Journal, "A Symmetrical-Transistor Steering Circuit," J. L. Walsh, Apr., 1957, pp. 185-188.

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