Electric power conversion systems – Current conversion – With voltage multiplication means
Patent
1994-12-05
1996-10-08
Hecker, Stuart N.
Electric power conversion systems
Current conversion
With voltage multiplication means
363 74, 363 60, 320 1, H02M 318, H02M 700
Patent
active
055637795
ABSTRACT:
A regulated supply (10) includes a charge pump (12), an output (14), a sensing circuit (16), and a control circuit (18). The charge pump (12) includes a variable capacitor (33) whose capacitance C.sub.v may be varied to compensate for changing loads and input power supply levels. The sensing circuit (16) senses the voltage level at the output (14) and provides feedback signals (66) and (68) to the control circuit (18). The voltage at the output (14) is dependent upon the capacitance C.sub.v of the variable capacitor (33). Therefore, responsive to the feedback signals (66) and (68) from the sensing circuit, the control circuit (18) varies the capacitance C.sub.v of the variable capacitor (33). The control circuit (18) then may vary the value of C.sub.v in a step-like manner to correct for the voltage at the output (14).
REFERENCES:
patent: 4467248 (1984-08-01), Watanabe et al.
patent: 5262934 (1993-11-01), Price
patent: 5306954 (1994-04-01), Chan et al.
patent: 5491623 (1996-02-01), Jansen
patent: 5499183 (1996-03-01), Kobatake
Cave Michael D.
Zavaleta Mauricio A.
Hecker Stuart N.
Motorola Inc.
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