Charge pump current source

Details Charge pump current source Charge pump current source

2006-11-07

2006-11-07

Zweizig, Jeffrey (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S566000

Reexamination Certificate

active

07132878

ABSTRACT:
This invention provides a circuit and a method for generating a low-level current using semiconductor charge pumping. The invention provides a means of generating a range of current sources by varying the frequency of a repetitive voltage pulse input signal. Also, this invention utilizes one or many MOSFET devices in order to produce higher levels of current. The current source embodiments of this invention generate very stable current sources with high input impedances.

REFERENCES:
patent: 5561385 (1996-10-01), Choi
patent: 6166585 (2000-12-01), Bazzani
patent: 6232826 (2001-05-01), Afghahi et al.
patent: 6278315 (2001-08-01), Kim
patent: 6285243 (2001-09-01), Mecier et al.
patent: 6323721 (2001-11-01), Proebsting
patent: 6326839 (2001-12-01), Proebsting
patent: 6366519 (2002-04-01), Hung et al.
patent: 6693480 (2004-02-01), Wong

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