Keihin Corporation

Takeshi Chiba

Koji Suzuki

Kenichi Takebayashi

Seiichiro Abe

Tomoya Katanoda

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.

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Kakuda, Japan

Takeshi Chiba