Non-contact rotational position sensor and throttle valve assembly including non-contact rotational position sensor

    公开(公告)号:US06559637B2

    公开(公告)日:2003-05-06

    申请号:US09820327

    申请日:2001-03-29

    IPC分类号: G01B714

    CPC分类号: G01D5/145

    摘要: A non-contact sensor for sensing a rotational position of a rotating object is provided. A ring-shaped permanent magnet magnetized in the axial direction is sandwiched between two pairs of magnetic plates from above and below. Two pairs of upper and lower protruded magnetic substance portions are provided between the upper and lower magnetic plates at opposite outer ends thereof. Magnetic sensitive devices are inserted in air gaps between the two pairs of upper and lower protruded magnetic substance portions. A magnetic flux generated from the ring-shaped permanent magnet is substantially concentrated to the protruded magnetic substance portions and passes the magnetic sensitive devices. The amount of magnetic flux passing each magnetic sensitive device is substantially proportional to the rotational angle of the ring-shaped permanent magnet. The rotational position of the ring-shaped permanent magnet and hence the rotational position of a rotating shaft supporting the ring-shaped permanent magnet can be sensed in a non-contact manner as a signal output from the magnetic sensitive device. Since the magnetic flux is effectively concentrated to positions where magnetic sensitive devices are attached, a non-contact rotational position sensor having high accuracy and high sensitivity can be obtained.

    Lateral field controlled thyristor
    55.
    发明授权
    Lateral field controlled thyristor 失效
    横向场控晶闸管

    公开(公告)号:US4258377A

    公开(公告)日:1981-03-24

    申请号:US19567

    申请日:1979-03-12

    摘要: An improvement in a semiconductor switching device is disclosed which comprises a semiconductor substrate of a first conductivity type, an anode region of a second conductivity type formed in the semiconductor substrate adjacent to a major surface thereof, a gate region of the second conductivity type formed a distance from the anode region, and a cathode region of the first conductivity type formed in the gate region and having a higher impurity concentration than the semiconductor substrate. A channel region is formed immediately below the cathode region thereby to directly contact the cathode region to the semiconductor substrate. A current path extending from the anode region to the cathode region through the semiconductor substrate is interrupted by a depletion layer produced in the vicinity of the channel region upon application of a reverse bias across a pn-junction formed between the gate region and the cathode region. When no reverse bias voltage is applied, the anode region, the semiconductor substrate and the gate region cooperate to function as a thyristor. The semiconductor switching device has a high dv/dt capability and is easily implemented in integrated circuits.

    摘要翻译: 公开了一种半导体开关器件的改进,其包括第一导电类型的半导体衬底,形成在与其主表面相邻的半导体衬底中的第二导电类型的阳极区域,第二导电类型的栅极区形成为 与阳极区域的距离以及形成在栅极区域中并且具有比半导体衬底更高的杂质浓度的第一导电类型的阴极区域。 沟道区形成在阴极区的正下方,从而直接接触阴极区到半导体衬底。 通过在栅极区域和阴极区域之间形成的pn结上施加反向偏压,在由沟道区域附近产生的耗尽层将中断通过半导体衬底从阳极区延伸到阴极区的电流路径 。 当不施加反向偏置电压时,阳极区域,半导体衬底和栅极区域配合作为晶闸管。 半导体开关器件具有高的dv / dt能力,并且易于在集成电路中实现。

    Process for preparation of semiconductor devices utilizing a two-step
polycrystalline deposition technique to form a diffusion source
    56.
    发明授权
    Process for preparation of semiconductor devices utilizing a two-step polycrystalline deposition technique to form a diffusion source 失效
    使用两步多晶沉积技术制备半导体器件以形成扩散源的方法

    公开(公告)号:US4164436A

    公开(公告)日:1979-08-14

    申请号:US925792

    申请日:1978-07-18

    摘要: A semiconductor substrate having a single crystal semiconductor layer of one conductivity type exposed to the surface thereof is maintained at a temperature lower than the temperature at which the semiconductors is precipitated from the gas phase. In this state, a gas of a starting material of a semiconductor, a gas containing impurities capable of forming a semiconductor of the other conductivity type and a carrier gas therefore are fed onto the semiconductor substrate. Then, the semiconductor substrate is heated to form an amorphous or polycrystalline semiconductor layer of the other conductivity type on the semiconductor substrate. Simultaneously, the impurities of the other conductivity type are diffused from the amorphous or polycrystal semiconductor layer into the substrate which has a single crystal semiconductor layer of one conductivity type, to form a single crystal semiconductor layer having a p-n junction just below the amorphous or polycrystal semiconductor layer between the amorphous or polycrystalline semiconductor layer and the single crystal semiconductor layer of one conductivity type.In a p-n junction to be formed according to this process, the distribution of the concentration of impurities can be controlled precisely, and the step-like distribution of the concentration of impurities can be attained very well.

    摘要翻译: 具有暴露于其表面的一种导电类型的单晶半导体层的半导体衬底保持在比从气相中半导体析出的温度低的温度。 在这种状态下,半导体衬底上的半导体原料气体,含能够形成其它导电类型的半导体的气体和载气的气体被馈送到半导体衬底上。 然后,半导体衬底被加热以在半导体衬底上形成另一导电类型的非晶或多晶半导体层。 同时,其他导电类型的杂质从非晶或多晶半导体层扩散到具有一种导电类型的单晶半导体层的衬底中,以形成具有刚好在无定形或多晶的下面的pn结的单晶半导体层 非晶或多晶半导体层与一种导电类型的单晶半导体层之间的半导体层。

    Process of manufacturing a stator
    57.
    发明授权
    Process of manufacturing a stator 有权
    制造定子的工艺

    公开(公告)号:US08407881B2

    公开(公告)日:2013-04-02

    申请号:US12698712

    申请日:2010-02-02

    IPC分类号: H02K15/00

    摘要: An object of the present invention is to provide a small, high-power rotating electrical machine by suitably forming a distributed winding coil such that two stator magnetic poles each formed of in-phase coil turns are arranged within an electric angle of 360 degrees formed by magnetic poles of the rotor. The present invention provides a method for manufacturing a stator, the method including a first step of placing a distributed winding coil 207 composed of a wire wound around a reel 210, as a whole, inside a stator core 202, and a second step of moving an insertion blade 213 so as to spread the distributed winding coil 207 in the radial direction of the stator core 202, thus inserting the distributed winding coil 207 into a stator core slot 206.

    摘要翻译: 本发明的目的是通过适当地形成分布式绕组线圈来提供小型高功率旋转电机,使得两个由同相线圈匝构成的定子磁极排列在由360度形成的360度的电角度内 转子的磁极。 本发明提供一种定子的制造方法,该方法包括:第一步骤,将由卷绕在卷轴210上的线组成的分布绕组线圈207整体放置在定子铁心202的内部,以及第二步骤 插入刀片213,以便沿着定子铁心202的径向扩展分布绕组线圈207,从而将分布式绕组线圈207插入定子铁心槽206中。

    INSULATING SHEET, CIRCUIT BOARD, AND PROCESS FOR PRODUCTION OF INSULATING SHEET
    58.
    发明申请
    INSULATING SHEET, CIRCUIT BOARD, AND PROCESS FOR PRODUCTION OF INSULATING SHEET 有权
    绝缘片,电路板和绝缘片生产工艺

    公开(公告)号:US20120188730A1

    公开(公告)日:2012-07-26

    申请号:US13498784

    申请日:2010-09-13

    摘要: An object of the present invention is to provide an insulating sheet superior in heat dissipation efficiency, heat resistance, insulation efficiency and moldability. Provided is a sheet-shaped insulating sheet of a resin composition containing an epoxy resin, a curing agent and an inorganic filler, wherein one or both of the epoxy resin and the curing agent have a naphthalene structure, the inorganic filler contains hexagonal boron nitride, and the inorganic filler is contained in an amount of 70 to 85 vol % in the entire resin composition. It is possible to increase the filling efficiency of an inorganic filler in the insulating sheet by using an epoxy resin and/or a curing agent having a naphthalene structure, which are favorably compatible with the hexagonal boron nitride contained in the inorganic filler.

    摘要翻译: 本发明的目的是提供一种绝热片,其散热效率,耐热性,绝缘效率和成型性优异。 提供一种含有环氧树脂,固化剂和无机填料的树脂组合物的片状绝缘片,其中一种或两种环氧树脂和固化剂具有萘结构,无机填料含有六方氮化硼, 并且在整个树脂组合物中,无机填料的含量为70〜85体积%。 可以通过使用具有萘结构的环氧树脂和/或固化剂,与无机填料中所含的六方氮化硼有利地相容,来提高绝缘片中无机填料的填充效率。

    Electric motor
    59.
    发明授权
    Electric motor 有权
    电动马达

    公开(公告)号:US07915778B2

    公开(公告)日:2011-03-29

    申请号:US12897378

    申请日:2010-10-04

    IPC分类号: H02K1/00

    CPC分类号: H02K3/28 H02K19/12 H02K19/22

    摘要: An electric motor comprising a rotor having plural magnetic poles in the circumferential direction; and a stator whose teeth are disposed opposite to the periphery of the rotor, with an air gap interposed between the rotor and the stator, wherein the coil conductors are wound on the stator so that two stator magnetic poles may be formed by two coil units of a phase wound around stator teeth within the range of 360 electrical degrees subtended by the magnetic poles of the rotor; each of the two coil units forming the stator magnetic poles spans an electrical angle less than 180 electrical degrees; the two coil turns forming the two stator magnetic poles are laid out so that they may not overlap each other; and the coil conductors are so wound that the adjacent stator magnetic poles exhibit opposite magnetic polarities.

    摘要翻译: 一种电动机,包括:沿圆周方向具有多个磁极的转子; 以及定子,其齿与所述转子的周边相对配置,在所述转子和所述定子之间插入气隙,所述线圈导体缠绕在所述定子上,使得两个定子磁极可以由两个线圈单元形成 在由转子的磁极对着的360度的范围内的绕定子齿缠绕的相; 形成定子磁极的两个线圈单元中的每一个跨越小于180电度的电角度; 形成两个定子磁极的两个线圈圈布置成使得它们可以不重叠; 并且线圈导体被缠绕,使得相邻的定子磁极呈现相反的磁极性。

    ELECTRIC MOTOR
    60.
    发明申请
    ELECTRIC MOTOR 有权
    电动马达

    公开(公告)号:US20110018381A1

    公开(公告)日:2011-01-27

    申请号:US12897378

    申请日:2010-10-04

    IPC分类号: H02K3/28

    CPC分类号: H02K3/28 H02K19/12 H02K19/22

    摘要: An electric motor comprising a rotor having plural magnetic poles in the circumferential direction; and a stator whose teeth are disposed opposite to the periphery of the rotor, with an air gap interposed between the rotor and the stator, wherein the coil conductors are wound on the stator so that two stator magnetic poles may be formed by two coil units of a phase wound around stator teeth within the range of 360 electrical degrees subtended by the magnetic poles of the rotor; each of the two coil units forming the stator magnetic poles spans an electrical angle less than 180 electrical degrees; the two coil turns forming the two stator magnetic poles are laid out so that they may not overlap each other; and the coil conductors are so wound that the adjacent stator magnetic poles exhibit opposite magnetic polarities.

    摘要翻译: 一种电动机,包括:沿圆周方向具有多个磁极的转子; 以及定子,其齿与所述转子的周边相对配置,在所述转子和所述定子之间插入气隙,所述线圈导体缠绕在所述定子上,使得两个定子磁极可以由两个线圈单元形成 在由转子的磁极对着的360度的范围内的绕定子齿缠绕的相; 形成定子磁极的两个线圈单元中的每一个跨越小于180电度的电角度; 形成两个定子磁极的两个线圈圈布置成使得它们可以不重叠; 并且线圈导体被缠绕,使得相邻的定子磁极呈现相反的磁极性。