Kabushiki Kaisha Yaskawa Denki

Yu Ujita

Masato Higuchi

Koji Nuki

Hiroshi Katayama

Daisuke Yoshimi

Heiji Kaneda

Kiyonori Koguma

Kunihiro Takenaka

Yosuke Katsuki

A driving circuit for a semiconductor circuit which includes a pair of main terminals through which a main current is conducted and a control terminal to which a control voltage is applied to control a circulation state of the main current, includes: driving voltage switching circuitry that receives a control signal, instructs switching between driving voltages based on a change in the control signal, and outputs a driving voltage, among the driving voltages, that has been selected in the switching; low-speed control circuitry that instructs an increase-decrease change in the control voltage at a low speed; speed-increase control circuitry that executes a speed-increase control of increasing a speed of the increase-decrease change made by the low-speed control circuitry; and speed-increase switching circuitry that instructs switching between an execution and a non-execution of the speed-increase control, and instructs switching between levels of a speed-increase change caused by the speed-increase control.

Driving circuit for semiconductor element, method for driving semiconductor element, and motor control apparatus

A motor includes a motor part and an amplifier configured to supply electric power to the motor part. The motor part includes a stator and a rotor. The amplifier includes a first frame constituting a housing of the amplifier and a second frame. The second frame is arranged on a first face located in a direction perpendicular to a rotation axis direction of the rotor at the first frame. At least one substrate housed in the first frame is attached to the second frame.

Motor and producing method for motor

Growing community of inventors

Kitakyushu, Japan

Yu Ujita