| Citation: |
Liu Zhongqi, Zhang Chun, Li Yongming, Wang Zhihua. A current-mode voltage regulator with an embedded sub-threshold reference for a passive UHF RFID transponder[J]. Journal of Semiconductors, 2010, 31(6): 065006. doi: 10.1088/1674-4926/31/6/065006
Liu Z Q, Zhang C, Li Y M, Wang Z H. A current-mode voltage regulator with an embedded sub-threshold reference for a passive UHF RFID transponder[J]. J. Semicond., 2010, 31(6): 065006. doi: 10.1088/1674-4926/31/6/065006.
Export: BibTex EndNote
|
A current-mode voltage regulator with an embedded sub-threshold reference for a passive UHF RFID transponder
doi: 10.1088/1674-4926/31/6/065006
-
Abstract
This paper presents a current-mode voltage regulator for a passive UHF RFID transponder. The passive tag power is extracted from RF energy through the RF-to-DC rectifier. Due to huge variations of the incoming RF power, the rectifier output voltage should be regulated to achieve a stable power supply. By accurately controlling the current flowing into the load with an embedded sub-threshold reference, the regulated voltage varies in a range of 1–1.3 V from –20 to 80 ℃, and a bandwidth of about 100 kHz is achieved for a fast power recovery. The circuit is fabricated in UMC 0.18 μm mixed-mode CMOS technology, and the current consumption is only 1 μA. -
References
-
Proportional views
DownLoad: