Title:
POWER SUPPLY DEVICE
Document Type and Number:
Japanese Patent JP2014207722
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power supply device capable of charging a desired secondary battery body and monitoring a charging state in a secondary accumulator battery configured by connecting secondary battery bodies in series, and to achieve reduction in the number of selection switches, reduction in wiring load, and simplification of a logical structure.SOLUTION: A power supply device comprises: a secondary accumulator battery 10 configured by connecting a plurality of secondary battery bodies in series; a constant current generation circuit 12; and a selection switch changeover circuit 11 for forming a charging path. The selection switch changeover circuit 11 is configured by a matrix type switch part 14, a row selection signal generation circuit 15, and a column selection signal generation circuit 16. The matrix type switch part 14 consists of a row selection multiplexer part 17 and a column selection multiplexer part 18. A positive electrode terminal and a negative electrode terminal selected by a row selection signal XS and upper column and lower column selection signals YSH and YSL are electrically connected with a supply output terminal BVH and a supply input terminal BVL of the constant current generation circuit 12, respectively.
Inventors:
KUBOKI SHIGEO
Application Number:
JP2013082209A
Publication Date:
October 30, 2014
Filing Date:
April 10, 2013
Export Citation:
Assignee:
KUBOKI SHIGEO
International Classes:
H02J7/02; B60L3/00; H01M10/44; H03K17/00