Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
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.
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patent: 6693480 (2004-02-01), Wong
Ang Chew-Hoe
Chen Tupei
Tan Shyue-Seng
Zheng Jia-Zhen
Ackerman Stephen B.
Chartered Semiconductor Manufacturing Ltd.
Saile Ackerman LLC
Zweizig Jeffrey
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