VDD/5 or VDD/6 charge-pump

Details VDD/5 or VDD/6 charge-pump VDD/5 or VDD/6 charge-pump

2009-10-16

2011-10-25

Hiltunen, Thomas J (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C363S060000

Reexamination Certificate

active

08044707

ABSTRACT:
Systems and methods to achieve a charge pump for generating from single supply voltage energy efficient supply voltages having a value of ±⅙ Vdd, ±⅕ Vdd, ±¼ Vdd, ±⅓ Vdd, ±½ Vdd or ±1 Vdd that are symmetrical around ground voltage have been disclosed. The charge pump requires two flying capacitors only. The charge pump generates positive and negative supply voltages following a 1/N ratio of Vdd voltage, i.e. +−Vdd/N, and can be generalized to generate +/−Vdd/2Nvoltages. This is especially useful for supplying class-G amplifiers with a voltage or power, which is just enough e.g. for an audio signal to be correctly generated at the output of the amplifier.

REFERENCES:
patent: 5481447 (1996-01-01), Caris et al.
patent: 6922097 (2005-07-01), Chan et al.
patent: 7199641 (2007-04-01), Wei
patent: 7456677 (2008-11-01), Rao et al.
patent: 7830209 (2010-11-01), Woodford et al.
patent: 2008/0044041 (2008-02-01), Tucker et al.
patent: 2008/0088179 (2008-04-01), Oyama et al.
patent: 2008/0116979 (2008-05-01), Lesso et al.
patent: 2008/0150621 (2008-06-01), Lesso et al.
patent: 2008/0159567 (2008-07-01), Lesso et al.
patent: 1 608 066 (2005-12-01), None
patent: 2 455 524 (2009-06-01), None
European Search Report 09368044.5-2207, Mail Date—Nov. 26, 2010, Dialog Semiconductor GmbH.
Co-pending US Patent DS09-010, U.S. Appl. No. 12/589,020, filed Oct. 16, 2009. “Reduced Capacitor Charge-Pump,” assigned to the same assignee as the present invention.

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