The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 2015
Filed:
Jan. 10, 2012
Masaki Nagaoka, Saitama, JP;
Akihiko Kudo, Ibaraki, JP;
Mutsumi Kikuchi, Ibaraki, JP;
Kenichiro Tsuru, Ibaraki, JP;
Tatsumi Yamauchi, Ibaraki, JP;
Akihiko Emori, Ibaraki, JP;
Masaki Nagaoka, Saitama, JP;
Akihiko Kudo, Ibaraki, JP;
Mutsumi Kikuchi, Ibaraki, JP;
Kenichiro Tsuru, Ibaraki, JP;
Tatsumi Yamauchi, Ibaraki, JP;
Akihiko Emori, Ibaraki, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Ibaraki, JP;
Abstract
A suppressed noise cell controller includes, corresponding to a number of cell packs, a plurality of ICs each having a voltage detecting circuit detecting voltages of respective cells of a cell pack in which four cells are connected in series, a switch control circuit controlling conduction and a blocking operation of a plurality of switch elements connected in parallel to the respective cells via capacity adjusting resistors, terminal LINfor inputting control information, terminal LINfor outputting control information, terminal Vcc and GND terminal, and terminal LINof a higher-order IC and terminal LINof a lower-order IC are daisy chain connected. The Vcc terminal of each IC is connected to a positive electrode of a higher-order cell among cells constituting a corresponding cell pack via a noise eliminating inductor, and the GND terminal is coupled directly to Vcc of the lower-order IC. Noise isn't superposed on LINor LIN