Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
Reexamination Certificate
2007-08-02
2008-09-30
Patel, Rajnikant B (Department: 2838)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
Automatic regulation
C315S291000
Reexamination Certificate
active
07429834
ABSTRACT:
An active current regulator circuit. In one embodiment, the active current regulator circuit includes a first input node for receiving a first reference electrical signal, a second input node for receiving a second reference electrical signal, a ground node, and an output node for outputting an output electrical signal with respect to the ground node. The active current regulator circuit further includes a PI controller having a first input node, a second input node, and an output node, and a linear regulator having a first input node electrically coupled to the output of the PI controller for receiving a voltage signal V0generated the PI controller, a first output node and a second output node. In operation the voltage signal V0is responsive to at least one input voltage signal applied to the first input of the second input of the amplifier, and drives the linear regulator to have a controlled electrical signal at its first output node accordingly.
REFERENCES:
patent: 5130635 (1992-07-01), Kase
patent: 5397963 (1995-03-01), Manson
patent: 6060843 (2000-05-01), Primisser et al.
patent: 6496393 (2002-12-01), Patwardhan
patent: 7009348 (2006-03-01), Mogilner et al.
Liu Chun-Ting
Sun Chia-Hung
Wey Chin-Der
AU Optronics Corporation
Morris Manning & Martin LLP
Patel Rajnikant B
Tingkang Xia, Esq. Tim
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