Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2005-11-15
2008-10-21
Tra, Quan (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
Reexamination Certificate
active
07439798
ABSTRACT:
A regulator circuit includes: a detection circuit, for outputting a feedback voltage in accordance with an output voltage; a reference voltage input section; a feedback voltage input section; an operational amplification circuit, for comparing a reference voltage and the feedback voltage and outputting a voltage as a comparison result; an output circuit, for supplying an output voltage in accordance with the output of the operational amplification circuit; a connection/disconnection circuit, for connecting or disconnecting the output terminal of the detection circuit and the feedback voltage input section; and a voltage setup circuit, for setting for the feedback voltage input section a predetermined voltage. In the standby state, the connection/disconnection circuit disconnects the output terminal of the detection circuit from the feedback voltage input section, and the voltage setup circuit sets a predetermined voltage for the feedback input section.
REFERENCES:
patent: 5982226 (1999-11-01), Rincon-Mora
patent: 7046079 (2006-05-01), Van Blerkom et al.
patent: 2000-331479 (2000-11-01), None
patent: 2002-083494 (2002-03-01), None
patent: 2002-312043 (2002-10-01), None
patent: 2004157613 (2004-06-01), None
Japanese Office Action, with English translation, issued in Japanese Patent Application No. JP2004-333312 dated on Jun. 13, 2008.
Hattori Norio
Kouno Kazuyuki
Matsushita Electric - Industrial Co., Ltd.
McDermott Will & Emery LLP
Tra Quan
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