Title :
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
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 Vref is only 19ppm/°C. Vref has only deviation of 0.29mV when power supply voltage VDD changes from 2.5V to 9V. By adopting pre-regulator technique, the PSRR of the designed BGR output voltage Vref 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;
Conference_Titel :
Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2013
Conference_Location :
Chengdu
DOI :
10.1109/CSQRWC.2013.6657429
