Rectifier circuit and RFID tag

Details Rectifier circuit and RFID tag Rectifier circuit and RFID tag

2008-08-05

2010-12-14

Trinh, Sonny (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

C455S333000, C455S127100

Reexamination Certificate

active

07853236

ABSTRACT:
A rectifier circuit includes a first MOS transistor; a first capacitor connected between a gate and a source of the first MOS transistor; a first switching circuit for supplying a bias voltage to the first capacitor in response to a control signal; a second MOS transistor whose drain is connected to the source of the first MOS transistor; a second capacitor connected between a gate and a source of the second MOS transistor; and a second switching circuit for supplying the bias voltage to the second capacitor in response to the control signal. The rectifier circuit also includes a third MOS transistor for imitating the first MOS transistor; a third capacitor for imitating the first capacitor; a dummy switching circuit for supplying the bias voltage to the third capacitor in response to the control signal; and a generating circuit for generating the control signal based on a potential of the third capacitor.

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Usami, et al., Powder LSI; An Ultra Small RF Identification Chip for Individual Recognition Applications, ISSCC TD: Embedded Technologies Paper, pp. 398-399, Feb. 2003.

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