Alternating current chopper circuit with low noise
    2.
    发明授权
    Alternating current chopper circuit with low noise 失效
    交流斩波电路噪声低

    公开(公告)号:US08547053B2

    公开(公告)日:2013-10-01

    申请号:US13069432

    申请日:2011-03-23

    IPC分类号: H02P3/18

    CPC分类号: H02M5/293 H02P7/29

    摘要: An alternating current chopper circuit with low noise is disclosed. The circuit includes a switching circuit, a first freewheel circuit, and a second freewheel circuit. The switching circuit has a control switching unit, which turns on and or off accordingly to a control signal. The first freewheel circuit and the second freewheel circuit are for providing a current-conducting path to the motor, when the control switching unit is turned off.

    摘要翻译: 公开了一种具有低噪声的交流斩波电路。 电路包括开关电路,第一续流电路和第二续流电路。 开关电路具有控制切换单元,其根据控制信号而导通和/或关断。 当控制切换单元关闭时,第一飞轮回路和第二飞轮回路用于向马达提供导流路径。

    System and method for providing notes in measurement devices
    3.
    发明授权
    System and method for providing notes in measurement devices 有权
    在测量设备中提供笔记的系统和方法

    公开(公告)号:US08078430B2

    公开(公告)日:2011-12-13

    申请号:US12632447

    申请日:2009-12-07

    IPC分类号: G06F19/00

    CPC分类号: G16H40/63 G06F19/00 G16H10/20

    摘要: A measurement device. The measurement device comprises a note control component, adapted to obtain and record a note that is input with respect to a measuring event of the measurement device; and a Central Processing Unit (CPU), adapted to link the note with the measuring event.

    摘要翻译: 测量装置。 测量装置包括音符控制部件,适于获得并记录关于测量装置的测量事件输入的音符; 以及适于将音符与测量事件相链接的中央处理单元(CPU)。

    BLOOD PRESSURE MEASUREMENT DEVICE
    4.
    发明申请
    BLOOD PRESSURE MEASUREMENT DEVICE 审中-公开
    血压测量装置

    公开(公告)号:US20090062664A1

    公开(公告)日:2009-03-05

    申请号:US11848025

    申请日:2007-08-30

    IPC分类号: A61B5/021

    CPC分类号: A61B5/02233 A61B5/022

    摘要: A blood pressure measurement device. The device comprises a measurement component for measuring blood pressure and a display component for displaying the blood pressure data measured. The display component is adapted to display simultaneously at least two sets of blood pressure measurement data measured at different date or time. Alternatively, the device further comprises a measurement state control component for recording and storing at least one measurement state related to the measurement of the blood pressure, and means for providing the at least one measurement state. Alternatively, the device further comprises an interfacing component that comprises a bi-direction multifunctional port, for exchanging blood pressure data measured between the blood pressure measurement device and at least one external device.

    摘要翻译: 血压测量装置 该装置包括用于测量血压的测量部件和用于显示测量的血压数据的显示部件。 显示部件适于同时显示在不同日期或时间测量的至少两组血压测量数据。 或者,该装置还包括用于记录和存储与血压测量相关的至少一个测量状态的测量状态控制部件和用于提供至少一个测量状态的装置。 或者,该装置还包括接口部件,其包括双向多功能端口,用于交换在血压测量装置和至少一个外部装置之间测量的血压数据。

    Belt-disc sander having speed adjuster
    5.
    发明授权
    Belt-disc sander having speed adjuster 失效
    带式砂光机具有调速器

    公开(公告)号:US06949006B1

    公开(公告)日:2005-09-27

    申请号:US10915540

    申请日:2004-08-11

    IPC分类号: B24B1/00 B24B21/04 B24B21/20

    CPC分类号: B24B21/20 B24B21/04

    摘要: A speed adjuster is provided in a belt-disc sander for controlling the rotating speed of a motor of the belt-disc sander. A speed adjust knob is disposed outside the belt-disc sander. The speed adjuster has a control circuit, a current sensor, a drive circuit, and a converter. The current sensor detects the motor current and feeds back to the control circuit, which controls the frequency variation of a SPWM signal of the drive circuit in response to the input of the speed adjust knob. The converter transforms the square wave voltage into an AC voltage for driving the motor. The desired rotating speed can be adjusted through the speed adjust knob. The control circuit will compare the present rotating speed of the motor with the set rotating speed to determine whether the present rotating speed conforms to the set one for correcting the rotating speed of the motor.

    摘要翻译: 在带盘式砂光机中设置有速度调节器,用于控制带盘砂光机的电动机的转速。 一个速度调节旋钮设置在皮带盘式砂磨机外面。 速度调节器具有控制电路,电流传感器,驱动电路和转换器。 电流传感器检测电机电流并反馈给控制电路,控制电路响应于速度调节旋钮的输入来控制驱动电路的SPWM信号的频率变化。 转换器将方波电压转换为用于驱动电机的交流电压。 可以通过速度调节旋钮调节所需的转速。 控制电路将电动机的当前转速与设定的转速进行比较,以确定当前转速是否符合用于校正电动机转速的设定转速。

    Process for separating isoprene
    7.
    发明授权
    Process for separating isoprene 失效
    异戊二烯分离方法

    公开(公告)号:US4570029A

    公开(公告)日:1986-02-11

    申请号:US707998

    申请日:1985-03-04

    CPC分类号: C07C7/12 C07C7/13

    摘要: A process for separating isoprene from isobutylene, isopentane, and pentene-1. The process uses an adsorbent comprising activated carbon or molecular sieve carbon to selectively adsorb isoprene from the other hydrocarbons. High purity isoprene is recovered by desorption using desorbent materials which include olefinic hydrocarbons. The process is particularly suited for a simulated moving bed apparatus.

    摘要翻译: 从异丁烯,异戊烷和戊烯-1分离异戊二烯的方法。 该方法使用包含活性炭或分子筛碳的吸附剂从其它烃中选择性吸附异戊二烯。 通过使用包括烯烃的解吸剂材料的解吸来回收高纯度异戊二烯。 该方法特别适用于模拟移动床装置。

    ALTERNATING CURRENT CHOPPER CIRCUIT WITH LOW NOISE
    8.
    发明申请
    ALTERNATING CURRENT CHOPPER CIRCUIT WITH LOW NOISE 失效
    交替使用低噪音的电流选择电路

    公开(公告)号:US20120126734A1

    公开(公告)日:2012-05-24

    申请号:US13069432

    申请日:2011-03-23

    IPC分类号: H02P6/14

    CPC分类号: H02M5/293 H02P7/29

    摘要: An alternating current chopper circuit with low noise is disclosed. The circuit includes a switching circuit, a first freewheel circuit, and a second freewheel circuit. The switching circuit has a control switching unit, which turns on and or off accordingly to a control signal. The first freewheel circuit and the second freewheel circuit are for providing a current-conducting path to the motor, when the control switching unit is turned off.

    摘要翻译: 公开了一种具有低噪声的交流斩波电路。 电路包括开关电路,第一续流电路和第二续流电路。 开关电路具有控制切换单元,其根据控制信号而导通和/或关断。 当控制切换单元关闭时,第一飞轮回路和第二飞轮回路用于向马达提供导流路径。

    SYSTEM AND METHOD FOR PROVIDING NOTES IN MEASUREMENT DEVICES
    9.
    发明申请
    SYSTEM AND METHOD FOR PROVIDING NOTES IN MEASUREMENT DEVICES 有权
    在测量设备中提供注释的系统和方法

    公开(公告)号:US20090063098A1

    公开(公告)日:2009-03-05

    申请号:US11847682

    申请日:2007-08-30

    IPC分类号: G06F17/40

    CPC分类号: G16H40/63 G06F19/00 G16H10/20

    摘要: A measurement device with capabilities of note taking. The measurement device comprises at least one measurement component, adapted to perform measurement in at least one measuring event of the measurement device; a note control component, adapted to obtain and record at least one note input with respect to the at least one measuring event; and a Central Processing Unit (CPU), adapted to link the at least one note with the at least one measuring event.

    摘要翻译: 具有记录功能的测量装置。 测量装置包括至少一个测量部件,适于在测量装置的至少一个测量事件中执行测量; 音符控制组件,适于获得并记录关于所述至少一个测量事件的至少一个音符输入; 以及中央处理单元(CPU),其适于将所述至少一个音符与所述至少一个测量事件相链接。

    Electronic ballast system for emergency lighting applications
    10.
    发明授权
    Electronic ballast system for emergency lighting applications 失效
    用于应急照明应用的电子镇流器系统

    公开(公告)号:US06876159B1

    公开(公告)日:2005-04-05

    申请号:US10722534

    申请日:2003-11-28

    CPC分类号: H02J9/065 H05B41/2821

    摘要: An electronic ballast system with emergency lighting features is presented. Especially, the electronic ballast system is relative to a single-stage converter configuration. The electronic ballast system serves as a regular ballast, a regular/emergency ballast, a battery charger or discharger and a power failure detector, fulfilling emergency lighting features. The single-stage converter used in the ballast is an integration of a bi-directional flyback converter and two half-bridge series-resonant parallel-loaded inverters. Unlike conventional approaches, the rectified and filtered input voltage is directly added to a set of battery voltages in the proposed system, so as to reduce the fabrication cost by simplifying the circuit configuration and the number of active switching elements.

    摘要翻译: 介绍了一种具有应急照明功能的电子镇流器系统。 特别地,电子镇流器系统相对于单级转换器配置。 电子镇流器系统用作常规镇流器,常规/紧急镇流器,电池充电器或放电器和电源故障检测器,满足应急照明功能。 镇流器中使用的单级转换器是双向反激式转换器和两个半桥串联谐振并联负载逆变器的集成。 与常规方法不同,经整流和滤波的输入电压直接添加到所提出的系统中的一组电池电压中,从而通过简化电路配置和有源开关元件的数量来降低制造成本。