PASSIVE RFID TAG AND RFID SYSTEM
A passive radio frequency identification (RFID) tag includes: a rectifier circuit that rectifies a signal obtained from an antenna and outputs the rectified signal as a DC voltage. A capacitor is connected to an output line of the rectifier circuit. A first regulator circuit generates a first regula...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A passive radio frequency identification (RFID) tag includes: a rectifier circuit that rectifies a signal obtained from an antenna and outputs the rectified signal as a DC voltage. A capacitor is connected to an output line of the rectifier circuit. A first regulator circuit generates a first regulator voltage by stabilizing the output DC voltage from the rectifier circuit. A control circuit starts operating when the first regulator voltage is applied, and the control circuit generates a control signal upon receipt of the modulation signal section of the wireless signal. A second regulator circuit generates a second regulator voltage by stabilizing the output DC voltage from the rectifier circuit in response to the control signal and outputs the second regulator voltage to the outside. |
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