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    • 1. 发明授权
    • Power converter for vehicle
    • 车用电源转换器
    • US08829739B2
    • 2014-09-09
    • US13553954
    • 2012-07-20
    • Takuya OkuboTsuyoshi Yamashita
    • Takuya OkuboTsuyoshi Yamashita
    • H01H9/54H01H33/59H01H47/00H01H85/46H01H3/26H01H3/28
    • H02M1/36B60L2210/40Y02T10/7241Y10T307/944
    • A power converter capable of activating a control circuit therein without increasing a length of a wiring for conveying an external activation signal. In the power converter, a converter circuit isolates a first voltage of a first power supply, converts the first voltage into a second voltage, and outputs the second voltage to a second power supply. A first power supply connecting circuit connects the first power supply to the converter circuit in response to the activation signal. An activation circuit determines whether or not the activation signal has been received by the first power supply connecting circuit on the basis of a voltage between input terminals of the converter circuit and activates the control circuit when it is determined that the activation signal has been received by the first power supply connecting circuit.
    • 一种功率转换器,其能够在不增加用于传送外部激活信号的布线的长度的情况下激活其中的控制电路。 在功率转换器中,转换器电路隔离第一电源的第一电压,将第一电压转换成第二电压,并将第二电压输出到第二电源。 第一电源连接电路响应于激活信号将第一电源连接到转换器电路。 激活电路基于转换器电路的输入端子之间的电压来确定第一电源连接电路是否已经接收到激活信号,并且当确定已经接收到激活信号被激活时激活控制电路 第一个电源连接电路。
    • 2. 发明申请
    • ELECTRONIC DEVICE TESTING APPARATUS
    • 电子设备测试设备
    • US20130169303A1
    • 2013-07-04
    • US13724664
    • 2012-12-21
    • Tsuyoshi YAMASHITA
    • Tsuyoshi YAMASHITA
    • G01R1/04
    • G01R1/0416G01R1/0466G01R31/2893
    • There is provided an electronic device testing apparatus which can effectively use a space in an electronic device handling apparatus since a preciser is not necessary.The electronic device testing apparatus, which tests DUTs including terminals, comprises: a test head which includes sockets to which the DUTs are electrically connected; and a handler which loads the DUTs onto a test tray, conveys the DUTs, and presses the DUTs against the sockets, the test head is mounted on the handler with an attitude where the sockets are directed downward, the handler loads the DUTs onto the test tray and presses the DUTs against the sockets from below with an attitude where the terminals are directed upward, and each of the sockets includes a positioning plate which positions the DUTs relative to the socket while using the terminals as a reference.
    • 提供了一种电子设备测试设备,其可以有效地使用电子设备处理设备中的空间,因为不需要预除器。 测试包括端子在内的DUT的电子设备测试设备包括:测试头,其包括DUT被电连接的插座; 以及将DUT装载到测试托盘上的处理器,传送DUT并将DUT压在插座上,测试头以插座向下的姿态安装在处理器上,处理器将DUT加载到测试 托盘,并将DUT从下方按照端子朝向上方的姿态按压在插座上,并且每个插座包括一个定位板,该定位板在使用端子作为参考的位置使DUT相对于插座定位。
    • 3. 发明授权
    • Electronic component pressing device and electronic component test apparatus
    • 电子元件按压装置和电子元件测试装置
    • US08164355B2
    • 2012-04-24
    • US12527976
    • 2008-01-18
    • Tsuyoshi Yamashita
    • Tsuyoshi Yamashita
    • G01R31/20
    • G01R31/2891
    • An electronic component pressing device includes a first pressing member for pressing a predetermined first region of the electronic component to be tested; a second pressing member for pressing a predetermined second region other than the first region of the electronic component to be tested; a gimbal mechanism for adhering the first pressing member to the first region when the first pressing member presses the first region of the electronic component to be tested; first pressing load applying means for applying a pressing load on the gimbal mechanism; and second pressing load applying means for applying a pressing load on the second pressing member.
    • 电子部件按压装置包括:第一按压部件,用于按压待测试的电子部件的预定的第一区域; 第二按压构件,用于按压除了待测试的电子部件的第一区域之外的预定的第二区域; 当所述第一按压构件按压所述待测电子部件的所述第一区域时,将所述第一按压构件粘合到所述第一区域的万向接头机构; 第一按压负荷施加装置,用于在万向节机构上施加按压负荷; 以及用于对第二按压部件施加按压负荷的第二按压负荷施加机构。
    • 5. 发明授权
    • Control apparatus for inhibiting synchronous-rectifier switching elements at low output current for a voltage transforming apparatus
    • 用于抑制用于电压变换装置的低输出电流下的同步整流器开关元件的控制装置
    • US07697310B2
    • 2010-04-13
    • US11699076
    • 2007-01-29
    • Kimikazu NakamuraTsuyoshi Yamashita
    • Kimikazu NakamuraTsuyoshi Yamashita
    • H02M3/335
    • H02M3/33592Y02B70/1475
    • The control apparatus for controlling a voltage transforming apparatus having a transformer, power switching elements disposed in a primary side, and synchronous-rectifying switching elements disposed in a secondary side includes a judging circuit making a judgment as to whether or not an output current of the voltage transforming apparatus is smaller than a specified current on the basis of a primary-side current of the transformer and an inhibition circuit inhibiting the synchronous-rectifying switching elements from performing their synchronous-rectifying control operation when the judging circuit judges that the output current is smaller than the specified current. The judging circuit makes the judgment with compensating for a variation of a relationship between the primary side-current and the output current due to variation of duty ratio of the power switching elements, and variation of at least one of the DC output voltage and the DC input voltage of the voltage transforming apparatus.
    • 用于控制具有变压器的电压变换装置的控制装置,设置在初级侧的功率开关元件和设置在次级侧的同步整流开关元件包括判断电路,判断是否输出电流 电压变换装置基于变压器的初级侧电流小于规定电流,抑制电路在判定电路判定为输出电流为止时,禁止同步整流用开关元件进行同步整流控制动作 小于指定电流。 判断电路通过补偿由于功率开关元件的占空比的变化引起的一次侧电流与输出电流之间的关系的变化以及直流输出电压和直流的至少一个的变化的判断 电压变换装置的输入电压。
    • 6. 发明申请
    • ELECTRONIC COMPONENT PRESSING DEVICE AND ELECTRONIC COMPONENT TEST APPARATUS
    • 电子元件压缩装置和电子元件测试装置
    • US20100019791A1
    • 2010-01-28
    • US12527976
    • 2008-01-18
    • Tsuyoshi Yamashita
    • Tsuyoshi Yamashita
    • G01R31/02
    • G01R31/2891
    • An electronic component pressing device includes a first pressing member for pressing a predetermined first region of the electronic component to be tested; a second pressing member for pressing a predetermined second region other than the first region of the electronic component to be tested; a gimbal mechanism for adhering the first pressing member to the first region when the first pressing member presses the first region of the electronic component to be tested; first pressing load applying means for applying a pressing load on the gimbal mechanism; and second pressing load applying means for applying a pressing load on the second pressing member.
    • 电子部件按压装置包括:第一按压部件,用于按压待测试的电子部件的预定的第一区域; 第二按压构件,用于按压除了待测试的电子部件的第一区域之外的预定的第二区域; 当所述第一按压构件按压所述待测电子部件的所述第一区域时,将所述第一按压构件粘合到所述第一区域的万向接头机构; 第一按压负荷施加装置,用于在万向节机构上施加按压负荷; 以及用于对第二按压部件施加按压负荷的第二按压负荷施加机构。
    • 7. 发明申请
    • DC-DC converter
    • DC-DC转换器
    • US20090290388A1
    • 2009-11-26
    • US12458882
    • 2009-07-27
    • Koji KawasakiKeiji ShigeokaTsuyoshi Yamashita
    • Koji KawasakiKeiji ShigeokaTsuyoshi Yamashita
    • H02M3/335H01F27/28
    • H02M3/33592H02M3/33569Y02B70/1475Y10S323/908
    • In a DC to DC converter, first and second primary windings are magnetically coupled to a first secondary winding. Third and fourth primary windings are magnetically coupled to a second secondary winding. The first and second primary windings are magnetically coupled to the first secondary winding. The third and fourth primary windings are magnetically coupled to the second secondary winding. The first and third primary windings are coupled in series to form a first coil member. The second and fourth primary windings are coupled in series to form a second coil member. One end of the first coil member is coupled to the first positive power line. A first switching element is coupled between the first negative power line and the other end of the first coil member. A first capacitor is coupled between the first negative terminal and one end of the second coil member.
    • 在DC-DC转换器中,第一和第二初级绕组被磁耦合到第一次级绕组。 第三和第四初级绕组被磁耦合到第二次级绕组。 第一和第二初级绕组磁耦合到第一次级绕组。 第三和第四初级绕组磁耦合到第二次级绕组。 第一和第三初级绕组串联耦合以形成第一线圈构件。 第二和第四初级绕组串联耦合以形成第二线圈构件。 第一线圈构件的一端与第一正电力线连接。 第一开关元件耦合在第一负电源线和第一线圈构件的另一端之间。 第一电容器耦合在第一负极端子和第二线圈部件的一端之间。
    • 8. 发明授权
    • Input to output isolated DC-DC converter
    • 输入到输出隔离的DC-DC转换器
    • US07289338B2
    • 2007-10-30
    • US11294427
    • 2005-12-06
    • Koji KawasakiKeiji ShigeokaYuji HayashiTsuyoshi Yamashita
    • Koji KawasakiKeiji ShigeokaYuji HayashiTsuyoshi Yamashita
    • H02M3/335
    • H02M3/33592Y02B70/1475
    • In a DC to DC converter, a transformer circuit includes a primary winding and a secondary winding member composed of series-connected first to fourth secondary windings having one and the other ends. The one and the other ends of the series-connected first to fourth secondary windings are connected to a first output terminal. The first and second secondary windings are wound around a first magnetic path in opposite directions, and the third and fourth secondary windings are wound around a second magnetic path in opposite directions. A first rectifying element is connected between the second output terminal and a connection point between the first and second secondary windings. A second rectifying element is connected between the second output terminal and a connection point between the third and fourth secondary windings.
    • 在DC-DC转换器中,变压器电路包括初级绕组和由具有一端和另一端的串联的第一至第四次级绕组构成的次级绕组构件。 串联的第一到第四次级绕组的一端和另一端连接到第一输出端。 第一和第二次级绕组缠绕在相反方向上的第一磁路上,并且第三和第四次级绕组绕相反方向的第二磁路缠绕。 第一整流元件连接在第二输出端子与第一和第二次级绕组之间的连接点之间。 第二整流元件连接在第二输出端子和第三和第四次级绕组之间的连接点之间。