Error-compensated charge pump circuit, and method for...

Details Error-compensated charge pump circuit, and method for... Error-compensated charge pump circuit, and method for...

2007-04-10

2007-04-10

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S148000, C327S536000

Reexamination Certificate

active

11104706

ABSTRACT:
A charge pump circuit has a charge pump having at least two switched current sources arranged in series. The difference between the currents produced in the two switched current sources contributes to the output current from the charge pump. At least one of the two current sources is controlled by means of a control signal. A control circuit produces the control signal for the at least one controlled current source such that the currents produced in the two current sources are regulated to the same value.

REFERENCES:
patent: 6124755 (2000-09-01), Parker et al.
patent: 6320435 (2001-11-01), Tanimoto
patent: 6812754 (2004-11-01), Nakanishi
patent: 6850102 (2005-02-01), Hsu et al.
patent: 6897692 (2005-05-01), Hughes
patent: 7020793 (2006-03-01), Hsieh
patent: 7123085 (2006-10-01), Gu
patent: 2003/0076141 (2003-04-01), Hsu et al.
patent: 199 39 104 (2001-07-01), None

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