Antiviral acyclic phosphonomethoxyalkylsubstituted alkenyl and alkynyl
purine and pyrimidine derivatives
    31.
    发明授权
    Antiviral acyclic phosphonomethoxyalkylsubstituted alkenyl and alkynyl purine and pyrimidine derivatives 失效
    抗病毒非环磷酰氧基烷基取代的烯基和炔基嘌呤和嘧啶衍生物

    公开(公告)号:US5696263A

    公开(公告)日:1997-12-09

    申请号:US350851

    申请日:1994-12-06

    CPC classification number: C07F9/65616 C07F9/65121

    Abstract: Compounds are provided that generally have the structure BCH.sub.2 CH(R)OCH.sub.2 P(O)(OH).sub.2, wherein B is a purinyl or pyrimidinyl base and R is C.sub.1-2 alkyl substituted with azido or amino, straight or branched alkenyl of 2-6 carbon atoms or alkynyl of 2-6 carbon atoms, together with the monester and diesters of such compounds with a C.sub.1-5 alkanol, and the corresponding salts, hydrates, solvates, the (R) or (S) isomers and the racemic (RS) mixtures thereof. The compounds have desirable antiviral activity.

    Abstract translation: 提供的化合物通常具有结构BCH 2 CH(OCH 2 P(O)(OH)2),其中B是嘌呤基或嘧啶基,R是被叠氮基或氨基取代的C 1-2烷基,直链或支链的2-6位的链烯基 碳原子或2-6个碳原子的炔基以及这些化合物与C1-5链烷醇的单酯和二酯,以及相应的盐,水合物,溶剂合物,(R)或(S)异构体和外消旋(RS )混合物。 该化合物具有所需的抗病毒活性。

    Apparatus for feeding raw material bars to a melting furnace

    公开(公告)号:US10119763B2

    公开(公告)日:2018-11-06

    申请号:US14933519

    申请日:2015-11-05

    Applicant: Chai-Long Yu

    Inventor: Chai-Long Yu

    Abstract: An apparatus feeds raw material bars to a furnace body of a melting furnace, and includes an enclosure body provided with a vertical feed passage to be disposed above an open top side of the furnace body. A feeding unit includes a push mechanism extending into an upper part of the feed passage, and a material retarder extending into a lower part of the feed passage. A transferring unit transfers a raw material bar to the feed passage in a manner that the raw material bar extends vertically in the feed passage. The push mechanism pushes the raw material bar in the feed passage downwardly, and the material retarder retards downward movement of the raw material bar out of the feed passage and into the furnace body.

    Methods for Precise Output Voltage Stability and Temperature Compensation of High Voltage X-ray Generators Within the High-Temperature Environments of a Borehole

    公开(公告)号:US20180239052A1

    公开(公告)日:2018-08-23

    申请号:US15955263

    申请日:2018-04-17

    Abstract: A control mechanism for a high-voltage generator for supplying voltage and current to an electronic radiation source in high-temperature environments is provided, the control mechanism including at least one voltage feedback loop for monitoring the output of the generator; at least one environmental temperature monitor; a control bus; and at least one control processor. A method of controlling a high-voltage generator that powers an electronic radiation source in high-temperature environments is also provided, the method including at least: measuring the output voltage of the generator; measuring the temperature within the generator's environment, using a control mechanism to modify a driving frequency, and using a control mechanism to modify a driving pulse-train, such that changes in properties of the electronic components of the generator as a result of changes in environmental temperature are characterized and the generator's driving signals modified to maintain optimally efficient input parameters for a specific environmental temperature.

    Segmented magneto-conductive structure applied in rotating machines
    35.
    发明授权
    Segmented magneto-conductive structure applied in rotating machines 有权
    在旋转机械中应用的分段磁导结构

    公开(公告)号:US09246361B2

    公开(公告)日:2016-01-26

    申请号:US13437744

    申请日:2012-04-02

    CPC classification number: H02K1/148 H02K1/02 H02K1/24

    Abstract: A segmented magneto-conductive structure applied in rotating machines comprises a rotor assembly and a stator assembly. The rotor assembly includes a rotor yoke component and a plurality of rotor teeth components. The rotor yoke component is made of non-oriented silicon steel. The rotor teeth components are made of grain-oriented silicon steel. The stator assembly includes a plurality of stator yoke components and a plurality of stator teeth components. The stator yoke components and the stator teeth components are made of grain-oriented silicon steel. Thereby, an operational efficiency of a motor applying the segmented magneto-conductive structure is enhanced.

    Abstract translation: 施加在旋转机器中的分段磁导体结构包括转子组件和定子组件。 转子组件包括转子轭部件和多个转子齿部件。 转子轭部件由无取向硅钢制成。 转子齿部件由晶粒取向硅钢制成。 定子组件包括多个定子轭部件和多个定子齿部件。 定子磁轭部件和定子齿部件由晶粒取向硅钢制成。 从而,提高了施加分段磁导体结构的电动机的操作效率。

    Electronic load for testing voltage stability
    36.
    发明授权
    Electronic load for testing voltage stability 有权
    用于测试电压稳定性的电子负载

    公开(公告)号:US08797701B2

    公开(公告)日:2014-08-05

    申请号:US13541662

    申请日:2012-07-04

    CPC classification number: G01R31/40

    Abstract: An electronic load for testing stability of a power voltage of a power source under test (PSUT) includes a voltage supply device, a field effect transistor (FET), an amplification circuit, and a current sampling resistor. The amplification circuit includes a first input, a second input, and an output. The voltage supply device is connected to the first input. The second input is connected to a source electrode of the FET. The output is connected to a gate electrode of the FET. A drain electrode of the FET is connected to the PSUT. One end of the current sampling resistor is grounded, and the other end of the current sampling resistor is connected to the source electrode of the FET and the second input. The voltage supply device outputs a control voltage. The amplification circuit amplifies the control voltage and drives the FET using the amplified control voltage.

    Abstract translation: 用于测试被测电源(PSUT)的电源电压的稳定性的电子负载包括电压供应装置,场效应晶体管(FET),放大电路和电流采样电阻器。 放大电路包括第一输入,第二输入和输出。 电源装置连接到第一输入。 第二输入端连接到FET的源电极。 输出端连接到FET的栅电极。 FET的漏电极连接到PSUT。 电流采样电阻的一端接地,电流采样电阻的另一端连接到FET的源极和第二个输入端。 电压供给装置输出控制电压。 放大电路放大控制电压,并使用放大的控制电压驱动FET。

    Resistance-measuring circuit and electronic device using the same
    37.
    发明授权
    Resistance-measuring circuit and electronic device using the same 有权
    电阻测量电路及使用该电路的电子装置

    公开(公告)号:US08786296B2

    公开(公告)日:2014-07-22

    申请号:US13278075

    申请日:2011-10-20

    CPC classification number: G01R27/14 G01D5/246

    Abstract: A resistance-measuring circuit includes a controller for outputting a PWM signal and further for adjusting the duty cycle of the PWM signal, and a sampling circuit for processing the PWM signal and transmitting the processed PWM signal to the sensor. The sampling circuit samples the signal outputted from the sensor to generate a sampled signal with the voltage thereof changing according to any change in the duty cycle of the PWM signal, and further transmits the sampled signal to the controller. The controller obtains the real-time duty cycle of the PWM signal when the voltage of the sampled signal reaches a threshold voltage, and further calculates the exact resistance of the sensor according to the obtained real-time duty cycle of the PWM signal and the threshold voltage. An electronic device with the resistance-measuring circuit is also provided.

    Abstract translation: 电阻测量电路包括用于输出PWM信号并进一步用于调整PWM信号的占空比的控制器,以及用于处理PWM信号并将处理过的PWM信号传输到传感器的采样电路。 采样电路对从传感器输出的信号进行采样,根据PWM信号的占空比的任何变化,产生采样信号,其电压变化,并将采样信号发送到控制器。 当采样信号的电压达到阈值电压时,控制器获得PWM信号的实时占空比,并根据获得的PWM信号的实时占空比和阈值计算出传感器的精确电阻 电压。 还提供了具有电阻测量电路的电子设备。

    Analog to digital converter
    38.
    发明授权
    Analog to digital converter 有权
    模数转换器

    公开(公告)号:US08395540B2

    公开(公告)日:2013-03-12

    申请号:US13213099

    申请日:2011-08-19

    CPC classification number: H03M1/56

    Abstract: An ADC includes an analog signal input port for receiving analog signals, a reference voltage generation circuit for producing a reference voltage, a controllable switch, a control unit including a counter, an integral circuit, and a comparison circuit. The control unit outputs an on or off signal to turn on or turn off the controllable switch, the counter starts to count when the control unit outputs the off signal. The integral circuit executes an integral action to integrate the reference voltage and output a voltage enhanced gradually when the controllable switch is turned off. The comparison circuit outputs an interrupt signal to cause the counter to stop counting when comparing the voltage output by the integral circuit is higher than the voltage of the analog signals. The control unit determines a digital value corresponding to the analog signals according to a count value of counted by the counter.

    Abstract translation: ADC包括用于接收模拟信号的模拟信号输入端口,用于产生参考电压的参考电压产生电路,可控开关,包括计数器,积分电路和比较电路的控制单元。 控制单元输出开启或关闭信号以打开或关闭可控开关,当控制单元输出关闭信号时,计数器开始计数。 积分电路执行积分动作以集成参考电压,并在可控开关关闭时逐渐输出增强的电压。 当比较积分电路的电压高于模拟信号的电压时,比较电路输出中断信号使计数器停止计数。 控制单元根据由计数器计数的计数值来确定与模拟信号相对应的数字值。

    SENSING CIRCUIT
    39.
    发明申请
    SENSING CIRCUIT 有权
    感应电路

    公开(公告)号:US20130018601A1

    公开(公告)日:2013-01-17

    申请号:US13304373

    申请日:2011-11-24

    CPC classification number: G06F3/0416 G06F3/042

    Abstract: A sensing circuit includes a plurality of sensors, a controller, a multiway switch, a linear optocoupler, and a logical control unit. The plurality of sensors are capable of measuring physical quantity, and each of the plurality of sensors is capable of generating a sensing signal in accordance with the physical quantity. The controller is capable of receiving and analyzing the sensing signals, and transforming the sensing signals into sensing events. The multiway switch is capable of selectively connecting one of the plurality of sensors to the controller. The linear optocoupler is connected between the plurality of sensors and the controller. The logical control unit is capable of controlling the multiway switch to selectively connect one of the plurality of sensors to the optocoupler, and generating a control signal to the controller, wherein the control signal indicating the one of the plurality of sensors connected to the controller.

    Abstract translation: 感测电路包括多个传感器,控制器,多路开关,线性光耦合器和逻辑控制单元。 多个传感器能够测量物理量,并且多个传感器中的每一个能够根据物理量产生感测信号。 控制器能够接收和分析感测信号,并将感测信号转换成感测事件。 多路开关能够将多个传感器中的一个选择性地连接到控制器。 线性光耦合器连接在多个传感器和控制器之间。 逻辑控制单元能够控制多路开关以选择性地将多个传感器中的一个连接到光耦合器,并且向控制器产生控制信号,其中指示连接到控制器的多个传感器中的一个传感器的控制信号。

    Charging circuit for balance charging serially connected batteries
    40.
    发明授权
    Charging circuit for balance charging serially connected batteries 有权
    充电电路用于平衡充电串联电池

    公开(公告)号:US08288999B2

    公开(公告)日:2012-10-16

    申请号:US12471728

    申请日:2009-05-26

    CPC classification number: H02J7/0014 Y02T10/7055

    Abstract: A charging circuit includes a battery pack having a plurality of serially connected batteries and being connected to a power supply; a changeover switch being serially connected to and between any two adjacent batteries; and a precision voltage detector being parallelly connected to each of the batteries for independently detecting a voltage of the connected battery and sending out a detected result to a charging control circuit for controlling the ON/OFF of the changeover switch corresponding to the battery. When a battery is detected by a corresponding precision voltage detector as having been fully charged, the corresponding charging control circuit sets the changeover switch corresponding to the battery to OFF to stop charging the battery. The remaining batteries that are subsequently fully charged are disconnected from the power source one by one until all the batteries in the battery pack have been fully charged. Thus, all the batteries are balance-charged.

    Abstract translation: 充电电路包括具有多个串联电池并连接到电源的电池组; 一个转换开关串联连接到任何两个相邻电池之间和之间; 以及并联地连接到每个电池的精密电压检测器,用于独立地检测连接的电池的电压,并将检测结果发送到充电控制电路,以控制对应于电池的切换开关的ON / OFF。 当相应的精密电压检测器检测到电池已经完全充电时,相应的充电控制电路将对应于电池的转换开关设置为OFF以停止对电池充电。 随后完全充电的剩余电池将逐个与电源断开连接,直到电池组中的所有电池都已充满电。 因此,所有的电池都是平衡的。

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