Keihin Corporation

Seiichiro Abe

Kenichi Takebayashi

Koji Suzuki

Hidefumi Abe

Toshiro Mayumi

Tomoya Katanoda

Takeshi Chiba

Takuya Yagi

Toru Shiba

A semiconductor device is provided with: a semiconductor element; and a connecting conductor that electrically connects at least one of an input terminal and an output terminal of the semiconductor element to a connection terminal of an electronic device. In this semiconductor device, the connecting conductor is a block structure.

Semiconductor device

A semiconductor control device is provided with: a plurality of semiconductor modules each having a cooling member and a semiconductor element; a circuit board mounted with a control element that controls the plurality of semiconductor modules; and a case in which the plurality of semiconductor modules and the circuit board are respectively mounted. The case is provided with a cylindrical sidewall that forms an internal space within the case, and on both ends of the sidewall, a first opening and a second opening are correspondingly formed to be opposite to each other. The plurality of semiconductor modules include a first semiconductor module mounted on the sidewall on a side of the first opening, and a second semiconductor module mounted on the sidewall on a side of the second opening. The circuit board is positioned between the first semiconductor module and the second semiconductor module, in the internal space.

Semiconductor control device

A capacitor module is provided with a plurality of capacitors juxtaposedly disposed to have electrode terminals that are composed of positive electrode terminals and negative electrode terminals, respectively. Neighboring capacitors, among the plurality of capacitors, are disposed adjacent to each other to define neighboring electrode terminals, among the electrode terminals thereof, with the same polarity.

Capacitor module with simplified wiring arrangement and structure

An object of the invention is to provide a PCB transformer having plural output channels, which can suppress a voltage fluctuation in each output channel to supply a stable output without the need for a larger body, even though an input load fluctuates. The PCB transformer include, a core having a core axis, a first layer including a winding for each input line separately wound around said core as plural input coils spaced from each other along the core axis, and a second layer including a winding for an output line corresponding to each output channel separately wound on said first layer as plural output coils spaced from each other along the core axis. One of the input coils and one of the output coils are disposed in one of winding regions defined along the core axis. In each the winding region, one coil having a narrower width of the input coil or the output coil is disposed within a width of another coil along said core axis.

Printed circuit board transformer

The present invention provides a high-voltage measuring device capable of providing sufficient electric isolation between resistors and between resistors and a voltage measurement circuit without necessity of enlarging a size of a substrate for carry thereon the circuit. A high-voltage measuring device mounted on a substrate, including a high-voltage input terminal pair, a measuring terminal pair, a voltage measuring circuit having input terminals connected to the measuring terminal pair, and two resistive parts. One of the resistive parts electrically connects one of high-voltage input terminal pair and one of measuring terminal pair. The other of resistive parts electrically connects between the other of high-voltage input terminal pair and the other of measuring terminal pair. Each of the resistive parts includes a series circuit of at least one high resistance resistor and at least one low resistance resistor, and a distance between the high resistance resistors in each of the resistive parts is larger than that between the low resistance resistors.

Growing community of inventors

Tochigi, Japan

Seiichiro Abe