Novars Inc.

Akihiro Okabe

Kazuhiro Koyama

Tetsuya Nobe

Toshitaka Fukushima

A battery-type power supply device realizes data transmission while also supplying power to a battery-driven external load device in a state in which the battery-type power supply device is mounted in a battery box of the external load device. The battery-type power supply device is mountable in the battery box of the external load device, has a shape and dimensions conforming to battery standards, and is capable of housing a small-size battery therein. An output transistor is interposed between a housed battery and an outer electrode terminal, and opening and closing of the output transistor are controlled by a PWM control section at a duty ratio corresponding to an instruction received from an external information processing device by a radio communication section, so that the battery type power supply device thereby functions as a switching power supply. Opening and closing of the output transistor are controlled by a transmission section in order to transmit data to the external load device through the outer electrode terminal. Connections of the transmission section and the PWM control section to the output transistor is switched by a connection switching section.

Battery-type power supply device and battery-driven load device

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.

Growing community of inventors

Tokyo, Japan

Akihiro Okabe