Title:
FILTER CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2014/203822
Kind Code:
A1
Abstract:
Resistors (Rf) and ceramic capacitors (Cf) comprise low-pass filters (21(01)—21(10)) and eliminate noise. On the basis of a standard Vx value (n) for the direct current voltage that occurs in output terminals (T01—T10) of a battery pack circuit (10), the resistance value of each resistor (Rf) includes a compensation value such that decreases in the capacitance of each capacitor (Cf) are anticipated in advance and cutoff frequencies for the low-pass filters are within a desired range. The occurrence of cutoff frequency dispersion can be prevented, and noise in an unnecessary frequency region can be sufficiently reduced, even when high voltage is handled.
Inventors:
CHIYAJO YUKI (JP)
SHIMIZU HIDEHIKO (JP)
WAKASUGI YASUTAKA (JP)
SHIMIZU HIDEHIKO (JP)
WAKASUGI YASUTAKA (JP)
Application Number:
PCT/JP2014/065746
Publication Date:
December 24, 2014
Filing Date:
June 13, 2014
Export Citation:
Assignee:
YAZAKI CORP (JP)
International Classes:
G01R19/00; G01R31/36; H01M10/48; H03H7/01
Foreign References:
| JP2011069639A | 2011-04-07 | |||
| JP2012159406A | 2012-08-23 | |||
| JP2013094032A | 2013-05-16 | |||
| JP2007240299A | 2007-09-20 | |||
| JP2007281915A | 2007-10-25 |
Attorney, Agent or Firm:
TORANOMON-IP FIRM (JP)
Patent business corporation Toranomon intellectual property office (JP)
Patent business corporation Toranomon intellectual property office (JP)
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