Sanyo Electric Co., Ltd.

Panasonic Holdings Corporation

Shinya Nakano

Masaki Yugou

Naohisa Morimoto

Hideki Sakata

Kenji Koizumi

Nobuyuki Ohsumi

Chikara Ohmori

Yoshitaka Ishikawa

A circuit device that is connected to a temperature detection element that detects a temperature of an object via an external signal line and an external signal ground line includes a connector that is connected to the external signal line and the external signal ground line, an internal signal line that is connected to the external signal line via the connector, an internal signal ground line that is connected to the external signal ground line via the connector, a controlling circuit that is connected to the internal signal line and the internal signal ground line and detects the temperature of the object, and a high-frequency filter that is inserted into at least one of a foremost stage of the internal signal line and a foremost stage of the internal signal ground line as viewed from the connector.

Circuit device and temperature detection system

A battery system comprises an assembled battery in which a plurality of battery cells are connected in series, a temperature sensor for detecting temperature of the battery cells of the assembled battery, and a voltage detecting line connected to a voltage detecting location of the battery cell. Further the battery system fixes the connecting terminal at the voltage detecting location. The connecting terminal fixes the temperature sensor in a thermally coupling state, and electrically connects the voltage detecting line.

Battery system

The power source apparatus is provided with a shunt resistor connected in series with batteries, and a current computation circuit that detects the voltage induced by current flow through the shunt resistor to compute battery current. The shunt resistor is provided with a pair of current flow terminals at two separated points on a metal plate connected in series with the batteries via connecting leads, and a pair of voltage detection terminals on a side of the metal plate between the pair of current flow terminals. Further, the shunt resistor has interval adjustment structures to adjust the distance (L) between attachment points where the connecting leads attach to the pair of current flow terminals. The distance (L) between lead attachment points is adjusted with the interval adjustment structures to finely adjust the voltage induced at the voltage detection terminals due to current flow between the two attachment points.

Power source apparatus

Growing community of inventors

Hyogo, Japan

Shinya Nakano