Electric power conversion systems – Current conversion – With voltage multiplication means
Patent
1991-11-07
1995-02-21
Stephan, Steven L.
Electric power conversion systems
Current conversion
With voltage multiplication means
363 60, 323311, 323285, H02M 318
Patent
active
053922050
ABSTRACT:
A regulated charge pump (43) includes a charge pump core (114) having a charging capacitor (80). An output voltage on a first terminal (72) of the charging capacitor (80) is transferred to a holding capacitor (81). A second terminal (73) of the charging capacitor (80) is alternatively connected to positive and negative power supply voltage terminals in response to non-overlapping clock signals. The first terminal (72) of the charging capacitor (80) is connected through first (150) and second (151) transistors to the positive power supply voltage terminal. A proportional portion (112) provides a coarse regulation by biasing the first transistor (150) proportional to a comparison between a predetermined fraction of an output voltage and a reference voltage. An integrating portion (113) provides a precise regulation by biasing the second transistor (151) proportional to an integrated difference between the output voltage and a reference voltage.
REFERENCES:
patent: 3909695 (1975-09-01), Peck
patent: 4278929 (1981-07-01), Lee et al.
patent: 4291366 (1981-09-01), Nelson
patent: 4430641 (1984-02-01), Baur et al.
patent: 4438346 (1984-03-01), Chuang et al.
patent: 4471290 (1984-09-01), Yamaguchi
patent: 4553047 (1985-11-01), Dillinger et al.
patent: 4752699 (1988-06-01), Cranford, Jr. et al.
patent: 4803612 (1989-02-01), Skovmand
patent: 4807104 (1989-02-01), Floyd et al.
patent: 4965711 (1990-10-01), Kamp et al.
"MPT 1375, Common Air Interface Specification", Department of Trade and Industry, London, 1989.
"MC145532 ADPCM Transcoder Product Review", in Motorola Telecommunications Device Data, DL 136, Rev. 2, Motorola, Inc. 1989.
"MC145554/MC145557/MC145564/MC145567 PCM Codec-Filter", in Motorola Telecommunications Device Data, DL 136, Rev. 2, Motorola, Inc., 1989.
Berhane Adolf
Motorola Inc.
Polansky Paul J.
Stephan Steven L.
LandOfFree
Regulated charge pump and method therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Regulated charge pump and method therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Regulated charge pump and method therefor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1935728