Abstract: The present invention provides a highly reliable electric power converter reduced in parasitic inductance.

Abstract: The present invention provides a vehicle power module and a power converter including a power semiconductor element (328), a plurality of connecting conductors (371U, 372U, 373U) for transmitting current to the power semiconductor element (328), and a metallic base (304) upon which the power semiconductor element (328) and the plurality of connecting conductors (371U, 372U, and 373U) are mounted; and the power semiconductor element (328) and the plurality of connecting conductors (371U, 372U, and 373U) are mounted upon the metallic base (304) so as to form a looped current path. Desirably, the power semiconductor element (328) and the plurality of connecting conductors (371U, 372U, 373U) are arranged so as to form two or more looped current paths.

Abstract: A power module includes an upper arm circuit unit and a lower arm circuit unit each having a power semiconductor element; an insulating substrate with the units mounted on one surface thereof; a metal base bonded onto the other surface of the substrate opposite to the one surface where the units are mounted; a first connection conductor for supplying a high potential to the upper unit from outside; a second connection conductor for supplying a low potential to the lower unit from outside; an insulating sheet interposed between the conductors; and a resin case disposed on the metal base to support the conductors, the conductors are flat conductors and laminated with the sheet sandwiched therebetween; the sheet extends from one end of the laminated structure to secure the creepage distance between the conductors; and the case is furnished with a recess for containing the laminated structure.

Abstract: The present invention provides a highly reliable electric power converter reduced in parasitic inductance.

Abstract: A capacitor module in which the structure of a connecting portion is highly resistant against vibration and has a low inductance. The capacitor module includes a plurality of capacitors and a laminate made up of a first wide conductor and a second wide conductor joined in a layered form with an insulation sheet interposed between the first and second wide conductors. The laminate comprises a first flat portion including the plurality of capacitors which are supported thereon and electrically connected thereto, a second flat portion continuously extending from the first flat portion while being bent, and connecting portions formed at ends of the first flat portion and the second flat portion and electrically connected to the exterior.

Abstract: The present invention provides a highly reliable electric power converter reduced in parasitic inductance.

Abstract: A power converter of the present invention is connected between a direct current power source and controls power to a load by switching equipment. The converter is equipped with a first conductor for connecting a negative pole of the power converter and the switching equipment, and a second conductor for connecting a housing of the power converter and the negative pole of the power converter to the first conductor through a resistor.

Abstract: The present invention provides a power module, power converter, and vehicular electric machine system capable of reducing inductance of a peripheral section of an output terminal in a power module, and additionally, reducing a surge voltage. A positive emitter conductor 3 connected to an emitter electrode of a positive power semiconductor element Mpu and an output terminal U are electrically interconnected by using a plurality of aluminum wires 7, a negative collector conductor 4 connected to a collector electrode of a negative power semiconductor element Mnu and the output terminal U are electrically interconnected by using a plurality of aluminum wires 9, and the positive emitter conductor 3 connected to the emitter electrode of the positive power semiconductor element Mpu and the negative collector conductor 4 connected to the collector electrode of the negative power semiconductor element Mnu are further electrically interconnected by using a plurality of aluminum wires 8.

Abstract: The power conversion apparatus uses the semiconductor device. Said semiconductor device includes a first group of power semiconductor elements at least one of which is electrically connected between a first potential and a third potential, a second group of power semiconductor elements at least one of which is electrically connected between a second potential and the third potential, and a third group of power semiconductor elements at least one of which is electrically connected between the first potential and the third potential. The second group is disposed between the first group and third group. Thereby, a low-loss semiconductor device having both inductance reducibility and heat generation balancing capability and also an electric power conversion apparatus using the same is provided.

Abstract: The present invention provides a power module, power converter, and vehicular electric machine system capable of reducing inductance of a peripheral section of an output terminal in a power module, and additionally, reducing a surge voltage. A positive emitter conductor 3 connected to an emitter electrode of a positive power semiconductor element Mpu and an output terminal U are electrically interconnected by using a plurality of aluminum wires 7, a negative collector conductor 4 connected to a collector electrode of a negative power semiconductor element Mnu and the output terminal U are electrically interconnected by using a plurality of aluminum wires 9, and the positive emitter conductor 3 connected to the emitter electrode of the positive power semiconductor element Mpu and the negative collector conductor 4 connected to the collector electrode of the negative power semiconductor element Mnu are further electrically interconnected by using a plurality of aluminum wires 8.

Abstract: A power converter of the present invention is connected between a direct current power source and controls power to a load by switching equipment. The converter is equipped with a first conductor for connecting a negative pole of the power converter and the switching equipment, and a second conductor for connecting a housing of the power converter and the negative pole of the power converter to the first conductor through a resistor.

Abstract: The present invention provides a highly reliable electric power converter reduced in parasitic inductance.

Abstract: A power converter of the present invention is connected between a direct current power source and controls power to a load by switching equipment. The converter is equipped with a first conductor for connecting a negative pole of the power converter and the switching equipment, and a second conductor for connecting a housing of the power converter and the negative pole of the power converter to the first conductor through a resistor.

Abstract: A capacitor module in which the structure of a connecting portion is highly resistant against vibration and has a low inductance. The capacitor module includes a plurality of capacitors and a laminate made up of a first wide conductor and a second wide conductor joined in a layered form with an insulation sheet interposed between the first and second wide conductors. The laminate comprises a first flat portion including the plurality of capacitors which are supported thereon and electrically connected thereto, a second flat portion continuously extending from the first flat portion while being bent, and connecting portions formed at ends of the first flat portion and the second flat portion and electrically connected to the exterior.

Abstract: The power conversion apparatus uses the semiconductor device. Said semiconductor device includes a first group of power semiconductor elements at least one of which is electrically connected between a first potential and a third potential, a second group of power semiconductor elements at least one of which is electrically connected between a second potential and the third potential, and a third group of power semiconductor elements at least one of which is electrically connected between the first potential and the third potential. The second group is disposed between the first group and third group. Thereby, a low-loss semiconductor device having both inductance reducibility and heat generation balancing capability and also an electric power conversion apparatus using the same is provided.

Abstract: A magnet device provided with a shield current carrying means in which two sets of magneto-static field generating sources for generating magnetic fields directed towards a first direction are disposed facing each other across a finite region and at least one set of the magneto-static field generating sources are disclosed on at least two almost concentric circles. A first plane includes a first axis, a second axis and a first point. The first point is a point of insertion between the first axis parallel to the first direction and passing almost through the center of the shield current carrying means. The second axis crosses at right angles to the first axis and is spaced almost equal distance from the two sets of the generating sources. The alternately arranged positive and negative current carrying directions of the shield current carrying means are set in the order of increasing value of ?n.

Abstract: A power converter of the present invention is connected between a direct current power source and controls power to a load by switching equipment. The converter is equipped with a first conductor for connecting a negative pole of the power converter and the switching equipment, and a second conductor for connecting a housing of the power converter and the negative pole of the power converter to the first conductor through a resistor.

Abstract: A magnet device provided with a shield current carrying means in which two sets of magneto-static field generating source for generating magnetic fields directed towards a first direction are disposed facing each other across a finite region and at least one set of the magneto-static field generating sources are disclosed on at least two almost concentric circles, wherein, on a first plane including a first axis, a second axis and a first point, the first point being a point of insertion between the first axis parallel to the first direction and passing the almost center of the shield current carrying means and the second axis crossing at right angles the first axis and spaced almost equal distance from the two sets of the generating sources, positive and negative current carrying directions of one set out of two sets of magneto-static field generating sources or those in respective sets are arranged alternately, when an angle formed by a half line at the n-th point position from the first point to extend tow