Novars Inc.

Tetsuya Nobe

Kazuhiro Koyama

Akihiro Okabe

An objective of the present invention is to realize a voltage detection function in a cell type power supply device having a wireless communication function. A cell type power supply deviceis attached to a cell boxof an external load devicealone or in series with another external cell. A housinghas a shape and dimensions based on a cell standard, and front and rear terminals of the external cell held in a cell holderin the housingare to be in contact with an inner positive terminaland an inner negative terminal. An outer positive terminalconnected to the inner positive terminal is provided on a front end surface of the housing, and an outer negative terminalconnected to the inner negative terminal is provided on a rear end surface of the housing. An output transistoris interposed at least one of between the inner negative terminal and the outer negative terminal and between the inner positive terminal and the outer positive terminal. An RFICgenerates a control signal of the output transistor in accordance with a signal received via an antenna. Voltage detection unitsanddetect at least one of a voltage between the inner positive terminal and GND, and a voltage between the outer negative terminal and GND.

Cell type power supply device having wireless communication function

A cell type power supply device includes: a housing having a shape and dimensions based on a cell standard; a cell holder including an inner positive terminal and an inner negative terminal that are brought into contact with front and rear terminals of the external cell held in the housing; an outer positive terminal connected to the inner positive terminal; an outer negative terminal connected to the inner negative terminal; an output transistor interposed between the inner negative terminal and the outer negative terminal or between the inner positive terminal and the outer positive terminal; a control circuit that generates a control signal of the output transistor in accordance with a signal received via an antenna; and a detection resister interposed between the inner negative terminal and the outer negative terminal or between the inner positive terminal and the outer positive terminal in parallel with the output transistor to change a voltage of the outer negative terminal or the outer positive terminal with respect to a reference voltage in accordance with ON/OFF of a power switch.

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Tokyo, Japan

Tetsuya Nobe