Rectifier for supplying double voltage and RFID tag thereof

Details Rectifier for supplying double voltage and RFID tag thereof Rectifier for supplying double voltage and RFID tag thereof

2006-02-17

2008-03-04

Lieu, Julie Bichngoc (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S645000, C340S662000, C340S572100, C340S539100, C363S125000, C363S126000

Reexamination Certificate

active

07339485

ABSTRACT:
Disclosed is a rectifier for supplying double voltage and an RFID tag thereof. The rectifier includes a charging part for charging an input voltage induced to input ends by a received radio frequency (RF) signal; a power provider for charging a sum voltage corresponding to the sum of the input voltage induced to the input end and the voltage charged in the charging part as a power voltage, and discharging the charged power voltage to provide a direct current (DC) power; and a switching part for switching to supply the input voltage induced at the input ends to the charging part during a first interval and switching to supply the sum voltage to the power provider during a second interval. Accordingly, double voltage can be supplied to other electric elements formed in the RFID tag and overcurrent caused by overvoltage can be prevented from flowing into the elements.

REFERENCES:
patent: 5200887 (1993-04-01), Ioroi et al.
patent: 5541495 (1996-07-01), Gali
patent: 6950767 (2005-09-01), Yamashita et al.
patent: 2007/0115704 (2007-05-01), Ito
patent: 2000-0183709 (2000-06-01), None
patent: 2003-0073587 (2003-09-01), None

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