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    • 69. 发明授权
    • Power converter
    • 电源转换器
    • US5608616A
    • 1997-03-04
    • US351027
    • 1994-12-07
    • Atsushi UmedaNorihito TokuraHirohide Sato
    • Atsushi UmedaNorihito TokuraHirohide Sato
    • H01L29/24H01L29/45H01L29/78H02J7/14H02K1/22H02K11/04H02K21/04H02M7/00H01L29/10
    • H01L29/7813H01L29/1608H01L29/7803H02J7/1492H02K11/046H02M7/003H01L29/45Y02T10/92
    • A power converter for an AC generator for motor vehicles for converting a generated voltage of the AC generator driven by an engine into a DC voltage to feed to a battery includes at least either high-side MOS power transistors for connecting an output end of an armature coil which generates the generated voltage of the AC generator with a high potential end of a battery or low-side MOS power transistors for connecting the output end of the armature coil with a low potential end of the battery. The MOS power transistors each has a source region, a well region and a drain region. A high resistance connected with either a parasitic diode on the side connected with the source generated between the source region and well region or a parasitic diode on the side connected with the drain generated between the drain region and well region in parallel is formed in the MOS power transistors. Thereby, it allows blocking a reverse current produced by the parasitic diode and giving a necessary potential to the well region. Further, SiC is used in the MOS power transistors rather than Si.
    • 一种用于机动车辆的交流发电机的电力转换器,用于将由发动机驱动的交流发电机的发电电压转换为直流电压以供电至电池,至少包括用于连接电枢的输出端的高侧MOS功率晶体管 线圈,其产生具有用于将电枢线圈的输出端与电池的低电位端连接的电池或低侧MOS功率晶体管的高电位端的交流发电机的发电电压。 MOS功率晶体管各自具有源极区,阱区和漏极区。 在源极区域和阱区域之间产生的与源极连接的一侧的寄生二极管或与漏极区域和阱区域之间并联产生的漏极侧的寄生二极管并联连接的高电阻形成在MOS 功率晶体管。 因此,它允许阻挡由寄生二极管产生的反向电流并为阱区提供必要的电位。 此外,SiC用于MOS功率晶体管而不是Si。
    • 70. 发明授权
    • Rotary electric machinery
    • 旋转电机
    • US5449962A
    • 1995-09-12
    • US134941
    • 1993-10-13
    • Akiya ShichijyoShin KusaseHiroaki KajiuraAtsushi Umeda
    • Akiya ShichijyoShin KusaseHiroaki KajiuraAtsushi Umeda
    • H02K1/24H02K3/28H02K5/24H02K17/12H02K19/22H02K3/00
    • H02K1/243H02K3/28
    • A stator coil of a rotary electric machine includes a three-phase Y-form connection circuit including first windings Y1, Y2 and Y3, which are connected in Y-form, and a three-phase delta-form connection circuit including second windings .increment.x3, .increment.y3 and .increment.z3 which are connected in delta-form, wherein the second windings .increment.x3, .increment.y3 and .increment.z3 are sequentially inserted in slots of a stator core to have a phase difference of 120.degree. therebetween, and each of the first windings Y1, Y2 and Y3 is divided into two windings, and the divided first windings are separately inserted in the slots, in which the second windings .increment.x3, .increment.y3 and .increment.z3 have been inserted, so that the resultant composite voltage vector of each pair of the divided first windings is shifted by 30.degree. in phase from the voltage vector of one of the second windings .increment.x3, .increment.y3 and .increment.z3. By virtue of the foregoing structure of the rotary electric machinery, the number of slots decreases and an electromagnetic noise is reduced, since a magnetic force due to the air gap magnetomotive force distribution becomes substantially constant independently of a rotational position of a rotor.
    • 旋转电机的定子线圈包括三相Y型连接电路,其包括以Y形连接的第一绕组Y1,Y2和Y3以及包括第二绕组INCREMENT x3的三相三角形连接电路 ,以三角形形式连接的INCREMENT y3和INCREMENT z3,其中第二绕组INCREMENT x3,INCREMENT y3和INCREMENT z3依次插入定子铁芯的槽中,在其间具有120°的相位差,并且第一 绕组Y1,Y2和Y3被分成两个绕组,并且分开的第一绕组被分别插入插入第二绕组INCREMENT x3,INCREMENT y3和INCREMENT z3的槽中,使得所得到的复合电压矢量 一对分割的第一绕组从第二绕组INCREMENT x3,INCREMENT y3和INCREMENT z3之一的电压矢量的相位偏移30°。 由于旋转电机的上述结构,由于气隙磁动势分布引起的磁力与转子的旋转位置无关,所以槽的数量减少并且电磁噪声减小。