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Patent Searching and Data


Title:
VOLTAGE DETECTING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2019/044854
Kind Code:
A1
Abstract:
A voltage detecting circuit of the present invention measures each cell voltage of an assembled battery configured by connecting a plurality of cells in series. With a voltage detecting circuit as a first voltage detecting circuit, the voltage detecting circuit comprises: a downstream-side communication circuit that performs communication with a host device that performs communication with a plurality of voltage detecting circuits connected to each other in series; an upstream-side communication circuit that performs communication with a third voltage detecting circuit provided further to the upstream side than the first voltage detecting circuit; a reply signal generating circuit that generates a reply signal containing data detected by the first voltage detecting circuit; an upstream-side transfer circuit that transfers signals received by the upstream-side communication circuit to the downstream side; a dummy current consumption circuit that consumes a dummy current; and a control circuit that performs control to selectively operate one of the reply signal generating circuit, the upstream-side transfer circuit, and the dummy current consumption circuit on the basis of a communication command signal received from the host device.

Inventors:
HATANI NAOHISA
MORI GOROU
Application Number:
PCT/JP2018/031829
Publication Date:
March 07, 2019
Filing Date:
August 28, 2018
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
PANASONIC ASIA PACIFIC PTE LTD (SG)
International Classes:
H02J7/02; G01R19/00; G01R31/36; H01M10/48; H01M50/569
Foreign References:
JP2011078200A2011-04-14
JP2017112697A2017-06-22
JP2003017134A2003-01-17
JPS553924B21980-01-28
Other References:
See also references of EP 3678279A4
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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