Oscillator including a transistor used both as constant current source
and amplifier
    92.
    发明授权
    Oscillator including a transistor used both as constant current source and amplifier 失效
    振荡器包括用作恒流源和放大器的晶体管

    公开(公告)号:US4797638A

    公开(公告)日:1989-01-10

    申请号:US30852

    申请日:1987-04-10

    IPC分类号: H03B1/00 H03B5/18 H03B5/12

    摘要: The local oscillation circuit in accordance with the present invention is characterized as follows. The collector of an oscillation transistor is grounded for atlernating current. A series resonance circuit consisting of a variable capacitance diode and a resonator is connected to the base of the oscillation transistor. The other end of the series resonance circuit is grounded for alternating current. The emitter of the oscillation transistor is connected to the collector of an amplifying transistor. The emitter is grounded through a capacitor that removes or reduces the a.c. component and passes the d.c. component. An oscillation signal taken from the emitter of the oscillation transistor is fed to the base of the amplifier transistor. A local oscillation output signal is taken from the collector of the amplifier transistor, and bias potential to the amplifier transistor is impressed from the power source to the base of the amplifier transistor. With this arrangement, the current in the oscillation transistor is stabilized, even with a change in the d.c. control voltage supplied to the resonance circuit, to improve the reliability and performance of the circuit.

    摘要翻译: PCT No.PCT / JP86 / 00359 Sec。 371日期:1987年4月10日 102(e)日期1987年4月10日PCT提交1986年7月14日PCT公布。 公开号WO87 / 00993 日本1987年2月12日。根据本发明的本地振荡电路的特征如下。 振荡晶体管的集电极接地,用于使电流过大。 由可变电容二极管和谐振器组成的串联谐振电路连接到振荡晶体管的基极。 串联谐振电路的另一端为交流电接地。 振荡晶体管的发射极连接到放大晶体管的集电极。 发射极通过电容器接地,可消除或减少电流。 组件并通过d.c. 零件。 从振荡晶体管的发射极取得的振荡信号被馈送到放大晶体管的基极。 从放大器晶体管的集电极获取本地振荡输出信号,并且将放大器晶体管的偏置电压从电源施加到放大器晶体管的基极。 通过这种布置,即使在直流电压的变化中,振荡晶体管中的电流也稳定。 提供给谐振电路的控制电压,以提高电路的可靠性和性能。

    Frequency conversion apparatus
    93.
    发明授权
    Frequency conversion apparatus 失效
    变频装置

    公开(公告)号:US4677692A

    公开(公告)日:1987-06-30

    申请号:US749416

    申请日:1985-06-27

    摘要: A frequency conversion apparatus for converting a high frequency signal into an intermediate frequency signal includes a mixer section for mixing a high frequency signal with a local oscillator signal so as to obtain an intermediate frequency signal, and an amplifier connected to the mixer section via a high frequency stopping circuit for supplying a constant direct current to the mixer section as a constant current source. A current flowing in the mixer section when the local oscillator signal is applied is kept substantially equal to a direct current flowing in the mixer section when no local oscillator signal is applied thereto. The amplifier is used for amplifying either the high frequency signal or the intermediate frequency signal, or both signals at the same time.

    摘要翻译: 一种用于将高频信号转换为中频信号的变频装置包括:混频器部分,用于将高频信号与本地振荡器信号混频以获得中频信号;以及放大器,通过高频连接到混频器部分 频率停止电路,用于向混频器部分提供恒定的直流电流作为恒定电流源。 当施加本机振荡器信号时,在混频器部分中流动的电流基本上等于在没有施加本地振荡器信号的情况下在混频器部分中流动的直流电流。 该放大器用于同时放大高频信号或中频信号,或两个信号。

    Rankine cycle
    95.
    发明授权
    Rankine cycle 有权
    兰金循环

    公开(公告)号:US09328632B2

    公开(公告)日:2016-05-03

    申请号:US14342876

    申请日:2012-08-14

    摘要: A Rankine cycle includes an waste-heat recovery device that is configured to exchange heat between cooling water coming out from an engine and exhaust gas exhausted from the engine, a heat exchanger including an evaporator through which the cooling water coming out from the engine flows to recover waste-heat of the engine to refrigerant, and a superheater through which the cooling water coming out from the waste-heat recovery device flows to recover the waste-heat of the engine to the refrigerant, an expander that is configured to generate power using the refrigerant coming out from the heat exchanger, a condenser that is configured to condense the refrigerant coming out from the expander, and a refrigerant pump that is configured to supply the refrigerant coming out from the condenser to the heat exchanger by being driven by the expander. The cooling water coming out from the superheater is returned to the engine after being joined with the cooling water coming out from the evaporator.

    摘要翻译: 兰金循环包括废热回收装置,其被配置为在从发动机排出的冷却水和从发动机排出的废气之间进行热交换,包括蒸发器的热交换器,从发动机流出的冷却水通过该蒸发器流向 将发动机的废热回收到制冷剂;以及过热器,从废热回收装置排出的冷却水通过该过热器流动,以将发动机的废热回收到制冷剂;膨胀机,其被配置为使用 从热交换器排出的制冷剂,冷凝器,其被配置为冷凝从膨胀机排出的制冷剂;以及制冷剂泵,其构造成通过由膨胀机驱动从冷凝器排出的制冷剂供给到热交换器 。 与从蒸发器出来的冷却水接合后,从过热器出来的冷却水返回发动机。

    RANKINE CYCLE SYSTEM
    99.
    发明申请
    RANKINE CYCLE SYSTEM 审中-公开
    RANKINE CYCLE系统

    公开(公告)号:US20140174087A1

    公开(公告)日:2014-06-26

    申请号:US14233204

    申请日:2012-09-06

    IPC分类号: F01K7/16

    摘要: A Rankine cycle system includes a refrigerant pump which is mounted on an engine and is configured to feed refrigerant, a heat exchanger which is mounted on the engine and is configured to recover exhaust heat of the engine to the refrigerant, an expander which is mounted on the engine and is configured to convert the exhaust heat recovered to the refrigerant into power by expanding the refrigerant whose temperature has been increased by the heat exchanger, and a condenser which is mounted on a vehicle body and is configured to condense the refrigerant expanded by the expander. The expander and the condenser, and the condenser and the refrigerant pump are connected by flexible pipes having higher flexibility than other pipes.

    摘要翻译: 兰金循环系统包括安装在发动机上并被配置为供给制冷剂的制冷剂泵,安装在发动机上并被配置为将发动机的排热恢复到制冷剂的热交换器,安装在发动机上的膨胀器 所述发动机构造为通过使由所述热交换器升温的制冷剂膨胀而将回收到所述制冷剂的废热转换为动力;以及冷凝器,其安装在车体上并且被构造成冷凝由所述热交换器膨胀的制冷剂 扩展器 膨胀机和冷凝器以及冷凝器和制冷剂泵通过比其他管道具有更高柔性的柔性管连接。

    Electronic device test apparatus
    100.
    发明授权
    Electronic device test apparatus 有权
    电子设备测试仪器

    公开(公告)号:US08749255B2

    公开(公告)日:2014-06-10

    申请号:US13018726

    申请日:2011-02-01

    IPC分类号: G01R31/00 G01R31/26

    摘要: An electronic device test apparatus which can optimize throughput and costs is provided.An electronic device test apparatus 1 comprises: a test cell cluster 10 having cell groups 11A to 11H each of which has a plurality of test cells 20; and a conveyor apparatus 30 supplying test carriers to a plurality of the test cells 20, and each of the test cell 20 has: contactors 215; a flow path 221 connected to a vacuum pump 25 and reducing pressure in a recess 211 of a pocket 21 so as to bring external terminals 73 and the contactors 215 into contact; and a test circuit for running a test on an electronic circuit formed into a die 90.

    摘要翻译: 提供了可以优化生产量和成本的电子设备测试装置。 电子设备测试装置1包括:具有单元组11A至11H的测试单元簇10,每个单元组具有多个测试单元20; 以及向多个测试单元20提供测试载体的传送装置30,并且每个测试单元20具有:接触器215; 连接到真空泵25的流路221,并且减小袋21的凹部211中的压力,使外部端子73和接触器215接触; 以及用于在形成为模具90的电子电路上运行测试的测试电路。