Patent ID: 8264204
Filing Date: 2012-09-11
Classification: B60L,H02J,Y02T

Abstract:
1. A cell controller for controlling a serially connected body of cells constituted by connecting a plurality of groups of cells in series, each of said groups being constituted of a plurality of cells connected in series, the cell controller comprising a plurality of ICs for each of said groups, said plurality of ICs each having a voltage detecting unit for detecting voltages of respective cells constituting said groups, a switch control unit for controlling conduction and a blocking operation of a plurality of switch elements connected in parallel to said respective cells via resistors, an information input terminal for inputting control information, an information output terminal for outputting control information, a power supply terminal, and a reference potential terminal, said plurality of ICs operating based on power supplied from said cells constituting said groups to said power supply terminal and said reference potential terminal; said plurality of ICs detecting voltages of respective cells by said voltage detecting unit and controlling said plurality of switch elements connected in parallel to said respective cells via resistors by said switch control unit to adjust states of charges of said cells, wherein: among said groups connected in series, said information output terminal of one IC corresponding to one group of adjacent groups and said information input terminal of the other IC corresponding to the other group of said adjacent groups are connected electrically; transmission of control information is performed from said information output terminal of said one IC to said information input terminal of said the other IC; and a power supply terminal of each of said ICs is connected to a positive electrode of a higher-order cell among said cells constituting said corresponding group via a first inductor.