Charge pump circuit for boosting voltage

Details Charge pump circuit for boosting voltage Charge pump circuit for boosting voltage

1995-04-14

1997-02-18

Wong, Peter S.

Electric power conversion systems

Current conversion

With voltage multiplication means

363 59, 327536, H02M 318

Patent

active

056046715

ABSTRACT:
A charge pump circuit for boosting a supply voltage has two bipolar transistors instead of MOS transistors for obtaining a large current drivability without enlargement in the size of the circuit. One of the bipolar transistors replenishes charge to an internal charge-up node from a high potential source line and the other of the bipolar transistors supply output current to a load. The latter of the bipolar transistors may be replaced by a resistor and a plurality of the charge pump circuits may be cascaded for obtaining a higher boosting function of potential and a large current drivability.

REFERENCES:
patent: 4527213 (1985-07-01), Ariizumi
patent: 4961007 (1990-10-01), Kumanoya et al.
patent: 5280420 (1994-01-01), Rapp
patent: 5289062 (1994-02-01), Wyland
patent: 5426333 (1995-06-01), Meada

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