Electric power conversion systems – Current conversion – With voltage multiplication means
Patent
1992-06-23
1993-11-16
Beha, Jr., William H.
Electric power conversion systems
Current conversion
With voltage multiplication means
363 63, H02M 307
Patent
active
052629341
ABSTRACT:
A charge pump circuit for providing a bipolar output that substantially doubles the unipolar voltage input by utilizing a three-phase clock signal to charge a first capacitor in response to the first phase of the three-phase clock signal, then in response to either the second or third phase of the clock signal connect the first capacitor in series between the positive voltage input terminal and positive voltage output terminal to generate an output voltage which is positive in polarity and substantially double the voltage of the input source, then in response to the other of the second and third clock phases connect, between the input terminals, the first and second capacitors in series for providing a second polarity voltage across the second capacitor which is substantially double the source voltage and during either the following first or second clock pulse connect the second capacitor with its positive electrode connected to the negative input terminal and its negative electrode connected to the negative output terminal, thereby providing an output voltage which is negative in polarity and substantially double the voltage of the input source.
REFERENCES:
patent: 4802739 (1989-02-01), Iwamoto
patent: 4812961 (1989-03-01), Essaff et al.
patent: 4999761 (1991-03-01), Bingham et al.
patent: 5051882 (1991-09-01), Grimm et al.
Miller, "New Converter Sidesteps Second Power Supply," Canadian Elect. Eng. vol. 24, No. 5, pp. 48, 49, May 1980.
Analogic Corporation
Beha Jr. William H.
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