A high quality CMOS power regulator for a wireless endoscope

Author

Ding, Qiyuan ; Feng, Liang ; Chen, Jianguang ; Cheng, Yuhua

Author_Institution

Shanghai Res. Inst. of Microelectron. (SHRIME), Peking Univ., Beijing, China

fYear

2010

fDate

22-24 Sept. 2010

Firstpage

17

Lastpage

20

Abstract

In this paper, we present the design of a low-power, high-power supply rejection ratio (PSRR) power regulator used in telemetry-powered bioimplantable microsystems in a 0.35μm standard CMOS process. The power regulator is comprised of a CMOS full-wave bridge rectifier, a wide-range and high PSRR voltage reference and a low drop out series voltage regulator. Simulation results show the proposed circuit provides 3V regulated DC output, exhibits load regulation factor of as low as 1% when delivering up to 30mA load current, and demonstrates line regulation factor of as low as 0.01%/V over 4.8V input amplitude variation.

Keywords

CMOS integrated circuits; bioMEMS; endoscopes; telemedicine; CMOS full-wave bridge rectifier; DC output; PSRR voltage reference; amplitude variation; high quality CMOS power regulator; high-power supply rejection ratio; line regulation factor; low drop out series voltage regulator; low-power supply rejection ratio; standard CMOS process; telemetry-powered bioimplantable microsystems; voltage 3 V; wireless endoscope; Bridge circuits; CMOS integrated circuits; MOSFETs; Rectifiers; Regulators; Telemetry; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Microelectronics and Electronics (PrimeAsia), 2010 Asia Pacific Conference on Postgraduate Research in

Conference_Location

Shanghai

Print_ISBN

978-1-4244-6735-8

Electronic_ISBN

978-1-4244-6736-5

Type

conf

DOI

10.1109/PRIMEASIA.2010.5604974

Filename

5604974