Electric power conversion systems – Current conversion – With voltage multiplication means
Patent
1987-05-15
1989-03-14
Salce, Patrick R.
Electric power conversion systems
Current conversion
With voltage multiplication means
363 63, H02M 318
Patent
active
048129615
ABSTRACT:
A charge pump circuit is integrated form utilizes a dual emitter transistor switch having low saturation voltage. The low saturation voltage for the transistor is provided by deriving a base bias voltage from the doubled voltage (2V.sub.cc) and a collector voltage from the voltage supply (V.sub.cc). Current-limiting for the transistor is provided by connecting one emitter to the base bias circuitry whereby the second emitter acts as a collector when the transistor saturates, thereby limiting the base drive and causing current-limiting.
REFERENCES:
patent: 2056376 (1936-10-01), Travis
patent: 4679134 (1987-07-01), Bingham et al.
Dobkin Robert C.
Essaff Robert
Linear Technology Inc.
Peckman Kristine
Salce Patrick R.
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