Abstract: A method for manufacturing a semiconductor device including a base material bonded to the heat dissipating member is configured to more reliably retain the shape of a sealing resin. The method includes a first process, a second process, and a third process. The first process includes bonding a base material to a heat dissipating member, where the base material includes an insulating layer and a conductive layer positioned on a first side in a first direction relative to the insulating layer. The second process includes bonding a semiconductor element to the conductive layer. The third process includes forming the sealing resin that covers the semiconductor element. In the first process, the base material is bonded to the heat dissipating member with the insulating layer positioned between the heat dissipating member and the conductive layer. The third process is performed after completion of each of the first process and the second process.

Abstract: An intelligent power module includes: a heat radiation device; an attachment frame disposed on a mounting surface of the heat radiation device; a power semiconductor module mounted on the attachment frame and configured to seal a semiconductor device; and a drive circuit part mounted on the power semiconductor module via a heat insulating sheet and configured to drive the power semiconductor module.

Abstract: An electric power steering device including: a motor configured to generate a steering assist force; a current command value calculation unit configured to calculate a current command value to control driving current of the motor; a current control unit configured to output a first voltage command value, based on current deviation of a measured value of the driving current to the current command value; a first gain setting unit configured to set a first gain depending on rotational velocity of the motor; a disturbance voltage suppression unit configured to calculate a third voltage command value by adding output from a first delay element to a second voltage command value obtained by limiting the first voltage command value by the first gain and input the third voltage command value to the first delay element; and a driving circuit configured to drive the motor, based on the third voltage command value.

Abstract: The motor control device includes: a d-axis current command value calculation unit configured to set a first d-axis current command value for field-weakening; a first current limiting unit configured to calculate a first q-axis current command value by limiting a base q-axis current command value as to satisfy a condition of motor rated current; a second current limiting unit configured to calculate a second d-axis current command value and a second q-axis current command value by limiting the first d-axis current command value and the first q-axis current command value, respectively to satisfy and not exceed an allowable upper limit battery current; voltage command value calculation units configured to calculate voltage command values, based on the second d-axis current command value and the second q-axis current command value; and a voltage limiting unit configured to prevent saturation of a duty ratio by limiting the voltage command values.

Abstract: An electric power steering device including: a motor configured to generate a steering assist force; a current command value calculation unit configured to calculate a current command value to control driving current of the motor; a current control unit configured to output a first voltage command value, based on current deviation of a measured value of the driving current to the current command value; a first gain setting unit configured to set a first gain depending on rotational velocity of the motor; a disturbance voltage suppression unit configured to calculate a third voltage command value by adding output from a first delay element to a second voltage command value obtained by limiting the first voltage command value by the first gain and input the third voltage command value to the first delay element; and a driving circuit configured to drive the motor, based on the third voltage command value.

Abstract: The motor control device includes: a d-axis current command value calculation unit configured to set a first d-axis current command value for field-weakening; a first current limiting unit configured to calculate a first q-axis current command value by limiting a base q-axis current command value as to satisfy a condition of motor rated current; a second current limiting unit configured to calculate a second d-axis current command value and a second q-axis current command value by limiting the first d-axis current command value and the first q-axis current command value, respectively to satisfy and not exceed an allowable upper limit battery current; voltage command value calculation units configured to calculate voltage command values, based on the second d-axis current command value and the second q-axis current command value; and a voltage limiting unit configured to prevent saturation of a duty ratio by limiting the voltage command values.

Abstract: Provided is a semiconductor device comprising: a semiconductor element; a supporting board supporting the semiconductor element; a wiring unit electrically connected to the semiconductor element; and a resin member sealing the semiconductor element. The resin member is provided with a first driving-side opening part, a second driving-side opening part, a first control-side opening part, and a second control-side opening part, in which a part of the wiring unit is exposed and on which electronic parts electrically connected to the wiring unit can be mounted.

Abstract: An intelligent power module includes: a heat radiation device; an attachment frame disposed on a mounting surface of the heat radiation device; a power semiconductor module mounted on the attachment frame and configured to seal a semiconductor device; and a drive circuit part mounted on the power semiconductor module via a heat insulating sheet and configured to drive the power semiconductor module.

Abstract: An intelligent power module includes: a heat radiation device; an attachment frame disposed on a mounting surface of the heat radiation device; a power semiconductor module mounted on the attachment frame and configured to seal a semiconductor device; and a drive circuit part mounted on the power semiconductor module via a heat insulating sheet and configured to drive the power semiconductor module.

Abstract: Provided is a semiconductor device comprising: a semiconductor element; a supporting board supporting the semiconductor element; a wiring unit electrically connected to the semiconductor element; and a resin member sealing the semiconductor element. The resin member is provided with a first driving-side opening part, a second driving-side opening part, a first control-side opening part, and a second control-side opening part, in which a part of the wiring unit is exposed and on which electronic parts electrically connected to the wiring unit can be mounted.

Abstract: An intelligent power module includes: a heat radiation device; an attachment frame disposed on a mounting surface of the heat radiation device; a power semiconductor module mounted on the attachment frame and configured to seal a semiconductor device; and a drive circuit part mounted on the power semiconductor module via a heat insulating sheet and configured to drive the power semiconductor module.

Abstract: An intelligent power module includes: a heat radiation device; an attachment frame disposed on a mounting surface of the heat radiation device; a power semiconductor module mounted on the attachment frame and configured to seal a semiconductor device; and a drive circuit part mounted on the power semiconductor module via a heat insulating sheet and configured to drive the power semiconductor module.

Abstract: [Problem] An object of the present invention is to provide a vector control type motor control unit that compensates a dead time of an inverter without a tuning operation, improves a distortion of a current waveform and responsibility of the current control, and suppresses sound, vibration and a torque ripple.