Title :
Balanced charging of series connected battery cells
Author :
Sakamoto, Hiroo ; Murata, Kentaro ; Nishijima, K. ; Harada, Kanako ; Taniguchi, Shinji ; Yamasaki, Kazuhiko
Author_Institution :
Kumamoto Inst. of Technol.
Abstract :
Novel method of charging and discharging the battery cells serially connected is presented. The principle is the control of charge stored in respective cells by using electronic switches so that the voltages of respective cells may be balanced automatically. The circuit to realize this principle is essentially the same as that of the ringing choke converter for the DC-to-DC power converter which is the simplest of minimum number of components. The cell voltage being low from 1.2 V to 3.6 V, the trench type MOSFET for the synchronous rectifier is used as a switching element
Keywords :
AC-DC power convertors; DC-DC power convertors; battery chargers; power MOSFET; power semiconductor switches; rectifying circuits; secondary cells; 1.2 to 3.6 V; DC-to-DC power converter; balanced charging methods; cell voltage balancing; electronic switches; ringing choke converter; series-connected battery cells; synchronous rectifier; trench-type MOSFET switch; Automatic voltage control; Batteries; Consumer electronics; DC-DC power converters; Energy loss; Inductors; Low voltage; MOSFET circuits; Switches; Switching circuits;
Conference_Titel :
Telecommunications Energy Conference, 1998. INTELEC. Twentieth International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-5069-3
DOI :
10.1109/INTLEC.1998.793517
