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Ultra-Low-Power Series Voltage Regulator for Passive Microwave RFID transponders. Giuseppe De Vita, Giuseppe Iannaccone Dipartimento di Ingegneria dell ’ Informazione: Elettronica, Informatica,Telecomunicazioni Universit à degli Studi di Pisa, Via Caruso 16, I-56122 Pisa, Italy

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Ultra-Low-Power Series Voltage Regulator for

Passive Microwave RFID transponders

Giuseppe De Vita, Giuseppe Iannaccone

Dipartimento di Ingegneria dell’Informazione: Elettronica, Informatica,Telecomunicazioni

Università degli Studi di Pisa, Via Caruso 16, I-56122 Pisa, Italy

NORCHIP Conference,2005.23rd

指導教授:林志明 教授

級別:碩一

學生:張家瑋


Outline

‧Abstract

‧Introduction

‧Reference Voltage Generator

‧Series Voltage Regulator

‧Experimental Results

‧Conclusion

‧References


Abstract

‧operating in the 868/916 MHz

‧implemented in a 0.35μm BiCMOS technology

‧provide a regulated voltage of 0.6 V





Where VA is the Early voltage


As the supply voltage has large variations, we have an unacceptable PSRR of the series voltage regulator.


.use a cascode current mirror unacceptable PSRR of the series voltage regulator.

where λ is the channel length modulation coefficient


.By setting k1/k2=0.5 and R= 2 MΩ, unacceptable PSRR of the series voltage regulator.

we can get a very good PSRR

for the voltage regulator.


Series voltage regulator
Series Voltage Regulator unacceptable PSRR of the series voltage regulator.


Experimental results
Experimental Results unacceptable PSRR of the series voltage regulator.


Conclusion unacceptable PSRR of the series voltage regulator.

.Experiment confirms that it provides a very low

quiescent power consumption, and a very good PSRR.

. quiescent current of only 34nA

.Provide a regulated voltage of 0.6 V


References
References unacceptable PSRR of the series voltage regulator.

[1] T. Basten, L. Benini, A. Chandrakasan, M. Lindwer, J. Liu, R. Min, F.

Zhao, “Scaling into Ambient Intelligence,”Proc. DATE 2003, Munich,

Germany, March 2003, pp 76-81.

[2] CEPT REC 70-03 Annex 1, ETSI EN 330 220-1.

[3] G. De Vita and G. Iannaccone, “Design Criteria for the RF section of

Long Range Passive RFID Systems,”Proc. NORCHIP 2004, Oslo,

Norway, November 2004, pp 107-110.

[4] V. Balan, “A Low-Voltage Regulator Circuit with Self-Bias to Improve

Accuracy,”IEEE Journal of Solid State Circuits, Vol. 38, No 2, pp. 365-

368, February 2003.

[5] G. A. Rincon-Mora and P. E. Allen, “A Low-Voltage, Low-Quiescent

Current, Low Drop-out Regulators,”IEEE Journal of Solid State Circuits,

Vol. 33, No 1, pp. 36-44, January 1998.

[6] K. N. Leung and P. K. T. Mok, “A CMOS Voltage Reference Based on

Weighted ΔVGS for CMOS Low-Dropout Linear Regulators,”IEEE

Journal of Solid State Circuits, Vol. 38, pp. 146-150, January 2003.


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