Inductance and capacitance charge pump circuit for driving power

Details Inductance and capacitance charge pump circuit for driving power Inductance and capacitance charge pump circuit for driving power

1992-12-14

1995-09-26

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

327306, 327530, 327589, H03K 301, H03L 500

Patent

active

RE0350419

ABSTRACT:
The circuit comprises a tank capacitance and a charge circuit supplied with the same voltage as the bridge and comprising an inductance and a control transistor. There is also provided a control circuit, which comprises an oscillator controlling the periodic switching of control transistor and a comparator which controls the momentary clamping of control transistor in the condition wherein the charge circuit is interrupted when the difference between the voltage across capacitance and the power supply voltage exceeds a present maximum value and the unclamping of the same transistor when such difference falls below a preset minimum value. A further comparator similarly clamps control transistor if there is an excess current in the transistor itself.

REFERENCES:
patent: 4097773 (1978-06-01), Lindmark
patent: 4312029 (1982-01-01), Zellmer
patent: 4348598 (1982-09-01), Smith
patent: 4751403 (1988-06-01), Maekawa et al.
patent: 4837457 (1989-06-01), Bergstrom

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