Design of bandgap voltage reference for DC-DC converter

Author

Zhou Qianneng ; Xue Rong ; Li Hongjuan ; Li Yunsong ; Tang Liang ; Zhai Pengpeng

Author_Institution

Coll. of Electron. Eng., Chongqing Univ. of Posts & Telecommun., Chongqing, China

fYear

2013

fDate

21-25 July 2013

Firstpage

361

Lastpage

364

Abstract

In this paper, a high PSRR bandgap voltage reference (BGR) is designed for DC-DC converter by adopting pre-regulator technique. The designed BGR is analyzed and simulated in CSMC 0.5μm CMOS mixed signal process. When temperature is in the range from -30°C to 75°C, the temperature coefficient of the BGR output voltage V_ref is only 19ppm/°C. V_ref has only deviation of 0.29mV when power supply voltage V_DD changes from 2.5V to 9V. By adopting pre-regulator technique, the PSRR of the designed BGR output voltage V_ref at 10Hz, 100Hz, 1kHz, 10kHz and 100kHz achieves -98.41dB, -98.38dB, -96.28dB, -78.24dB and -43.39dB respectively.

Keywords

CMOS integrated circuits; DC-DC power convertors; reference circuits; BGR output voltage; CSMC CMOS mixed signal process; DC-DC converter; PSRR bandgap voltage reference; frequency 1 kHz; frequency 10 Hz; frequency 10 kHz; frequency 100 Hz; frequency 100 kHz; power supply voltage; preregulator technique; size 0.5 mum; voltage 0.29 mV; voltage 2.5 V to 9 V; MOSFET; Photonic band gap; Power supplies; Simulation; Temperature distribution; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2013

Conference_Location

Chengdu

Type

conf

DOI

10.1109/CSQRWC.2013.6657429

Filename

6657429