Charge pump voltage converter

Details Charge pump voltage converter Charge pump voltage converter

1995-03-24

1997-06-03

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Capacitor

Parallel-charge, series-discharge

307109, 307108, 363 60, H02M 318

Patent

active

056357761

ABSTRACT:
A charge pump circuit which has a simple circuit configuration yet can boost the power source voltage 4 or 8 times. The + side electrode of a capacitor C1 is connected to an input terminal 10 via a diode D1; the - side electrode is connected to input terminal 10 via a switch S1 and is also connected to ground potential via a switch S2. The + side electrode of a capacitor C2 is connected to the + side electrode of capacitor C1 via a diode D2; the - side electrode is connected to the + side electrode of capacitor C1 via a switch S3 and is also connected to ground potential via a switch S4. Switching control signals PA, PB, PC, PD with the prescribed frequencies and phase are provided to switches S1, S2, S3, S4 from switch control circuit (14).

REFERENCES:
patent: 4302804 (1981-11-01), Bader
patent: 4451743 (1984-05-01), Suzuki et al.
patent: 4807104 (1989-02-01), Floyd
patent: 4922403 (1990-05-01), Feller
patent: 5159543 (1992-10-01), Yamawaki
patent: 5237209 (1993-08-01), Brewer

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