Electrical transmission or interconnection systems – Wave form or wave shape determinative or pulse-producing... – With rectification or derectification
Reexamination Certificate
2005-02-23
2010-06-08
Fleming, Fritz M (Department: 2836)
Electrical transmission or interconnection systems
Wave form or wave shape determinative or pulse-producing...
With rectification or derectification
Reexamination Certificate
active
07732945
ABSTRACT:
Disclosed is a rectifier circuit that realizes a low threshold voltage without using a process step to enable reduction in cost and in variation of devices. An NMOS transistor has a threshold voltage. In the transistor, a voltage to be rectified is inputted to a second node, and a rectified voltage is outputted to a first node. A threshold voltage generator is connected to a gate of the transistor and the first node. The generator generates a voltage and outputs it to the gate of the transistor. The voltage is a voltage which is elevated by the threshold voltage with respect to a voltage of the first node and is decreased by a microvoltage sufficiently small with respect to the threshold voltage. Thus, when the voltage of the second node is decreased by the microvoltage or more with respect to that of the first node, the transistor is turned on.
REFERENCES:
patent: 6060943 (2000-05-01), Jansen
patent: 6078512 (2000-06-01), Bouvier
patent: 6421261 (2002-07-01), Fujisawa et al.
patent: 6747880 (2004-06-01), Grover
patent: 1 071 211 (2001-01-01), None
patent: 59-111514 (1984-06-01), None
patent: 59-228770 (1984-12-01), None
patent: 2002-152080 (2002-05-01), None
patent: 2003-348773 (2003-12-01), None
patent: WO 2004/077190 (2004-09-01), None
Karthaus et al., “Fully Integrated Passive UHF RFID Transponder IC with 16.7-uW Minimum RF Input Power”, IEEE Journal of Solid-State Circuits, vol. 38, No. 10, pp. 1602-1608 (Oct. 2003).
Nantoh, “Electronic Circuit and Analogue IC”, Kougatosho Ltd., p. 174-175.
Gotoh Kunihiko
Yamazaki Daisuke
Amaya Carlos
Arent & Fox LLP
Fleming Fritz M
Fujitsu Limited
LandOfFree
Rectifier circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rectifier circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rectifier circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4206712