Electricity: power supply or regulation systems – Output level responsive – Using an impedance as the final control device
Reexamination Certificate
2007-01-26
2010-11-16
Laxton, Gary L (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using an impedance as the final control device
C323S231000, C324S765010
Reexamination Certificate
active
07834607
ABSTRACT:
A voltage generator with current limiting generates a voltage to be fed to a load of which load current is limited. The voltage generator includes an operational amplifier; an output resistance connected between an output terminal of the operational amplifier and a load connecting terminal; a feedback resistor connected between the load connecting terminal and an inverting input terminal of the operational amplifier; a first clamper connected between the output terminal of the operational amplifier and the inverting input terminal of the operational amplifier; and a second clamper connected between the load connecting terminal and a non-inverting input terminal of the operational amplifier and configured with diodes. The first clamper generates a predetermined constant voltage, limits a current flowing into the output resistance, and varies the generated constant voltage. The first clamper has a predetermined abrupt current-voltage characteristic.
REFERENCES:
patent: 5264781 (1993-11-01), Miller et al.
patent: 5739678 (1998-04-01), Nagaraj
patent: 5754041 (1998-05-01), Kaito et al.
patent: 7071663 (2006-07-01), Okubo et al.
patent: 7521937 (2009-04-01), Nagata
patent: 7579813 (2009-08-01), Fan
patent: 7602161 (2009-10-01), McLeod
patent: 7612549 (2009-11-01), Kao et al.
patent: 54-022552 (1979-02-01), None
patent: 2002-123320 (2002-04-01), None
patent: 2002-182755 (2002-06-01), None
patent: 2005-293423 (2005-10-01), None
Patent Abstracts of Japan, Publication No. 2002-123320 dated Apr. 26, 2002, 1 page.
Patent Abstracts of Japan, Publication No. 2002-182755 dated Jun. 26, 2002, 1 page.
Patent Abstracts of Japan, Publication No. 2005-293423 dated Oct. 20, 2005, 2 pages.
Patent Abstracts of Japan, Publication No. 54-022552 dated Feb. 20, 1979, 1 page.
International Search Report issued in PCT/JP2007/051295 mailed on Apr. 24, 2007, 1 page.
Written Opinion issued in PCT/JP2007/051295 mailed on Apr. 13, 2007, 3 pages.
Notification from the International Bureau along with the English Translation of the International Preliminary Report on Patentability and the Writtein Opinion of the Searching Authority for International Application No. PCT/JP2007/051295, mailed Aug. 6, 2009, 6 pages.
Advantest Corporation
Laxton Gary L
Osha & Liang LLP
LandOfFree
Voltage generator with current limiting and semiconductor... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Voltage generator with current limiting and semiconductor..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage generator with current limiting and semiconductor... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4248767