Abstract: This paper presents a power supply solution for fully integrated passive radio-frequency identification (RFID) transponder IC,which has been implemented in 0.35μm CMOS technology with embedded EEPROM from Chartered Semiconductor.The proposed AC/DC and DC/DC charge pumps can generate stable output for RFID applications with quite low power dissipation and extremely high pumping efficiency.An analytical model of the voltage multiplier,comparison with other charge pumps,simulation results,and chip testing results are presented.

Key words: AC/DC, DC/DC, charge pump, RFID, voltage regulator, low-power CMOS