| Title |
Design and Implementation of Power Management Circuit for Semi-active RFID Tags |
| Authors |
김영교(Kim, Yeong-Kyo) ; 이경일(Yi, Kyeon-Gil) ; 조성규(Cho, Sung-Kyo) ; 남기훈(Nam, Ki-Hun) ; 김시호(Kim, Shi-Ho) |
| Keywords |
RFID tags ; UHF ; TFB(Thin Film Battery) ; Switched capacitor mode down regulator |
| Abstract |
A power management controller circuit with switched capacitor mode down regulator and battery charger block for semi-active RFID tags was proposed and fabricated. The main purposes of the proposed switched capacitor mode down regulator and battery charger block are to reduce standby current and to provide a self-controlled thin film battery charger by detecting the received RF power, respectively. Fabricated chip area is 360,000μm^2 and measured standby current was about 1.3μA. To further reduction of standby current, a wake-up circuit has to be included in the power management controller. |