Title :
A current sensing circuit used in integrated step-up converter
Author :
Kunlin, Gong ; Quanyuan, Feng ; Fanglan, Zhao
Author_Institution :
Inst. of Microelectron., Southwest Jiaotong Univ., Chengdu, China
Abstract :
According to the characteristics of the step-up converter, this paper presents a novel current sensing circuit. This circuit is simple, and is easy to be integrated. More importantly, its sampling rate is constant when the temperature and input voltage change. It realizes a high precision current sensing circuit. Due to low output voltage of the circuit, a high-precision and low threshold comparator is designed.
Keywords :
comparators (circuits); power convertors; power integrated circuits; current sensing circuit; integrated step-up converter; low output voltage; low threshold comparator; Delay effects; Energy management; Immune system; Inductors; MOSFET circuits; Power MOSFET; Power system management; Sampling methods; Temperature sensors; Threshold voltage;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1607110
