Title :
A Novel Switch-Mode Charger Controller IC for VRLA Batteries
Author :
Yi, Zhang ; Xiaobo, Wu ; Xiaolang, Yan ; Shiming, Han
Author_Institution :
Zhejiang Univ., Hangzhou
Abstract :
A novel switch-mode charger controller IC was proposed to improve the charging efficiency of VRLA (Valve Regulated Lead-Acid) battery and save its life. Cooperated with an MCU, the controller IC could provide four charging modes: trickle charge, bulk charge, over-charge and float charge according to demands of battery in different charging phases, which results in efficient charging and reliable protecting both battery and charge system. The controller IC was designed and fabricated in 1.5 mum BCD technology. Experimental results showed that all expectations were implemented and the performances of the chip met specifications well.
Keywords :
battery chargers; lead acid batteries; switched mode power supplies; BCD technology; MCU; VRLA batteries; battery system; bulk charge; charge system; charging efficiency; charging modes; charging phases; float charge; over-charge; switch-mode charger controller IC; trickle charge; valve regulated lead-acid battery; Batteries; Communication system control; Control systems; Industrial Electronics Society; Notice of Violation; Power supplies; Protection; Valves; Very large scale integration; Voltage control;
Conference_Titel :
Industrial Electronics Society, 2007. IECON 2007. 33rd Annual Conference of the IEEE
Conference_Location :
Taipei
Print_ISBN :
1-4244-0783-4
DOI :
10.1109/IECON.2007.4460259
