会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 11. 发明授权
    • On/off time modulation for constant on-time and constant off-time switching regulators
    • 用于恒定导通时间和恒定关断时间开关调节器的开/关时间调制
    • US08970191B1
    • 2015-03-03
    • US12658021
    • 2010-02-01
    • Lik-Kin WongIssac Kuan-Chun HsuTze-Kau Man
    • Lik-Kin WongIssac Kuan-Chun HsuTze-Kau Man
    • G05F1/00
    • H02M3/156H02M1/44
    • An apparatus includes a constant on-time or constant off-time (COT) switching regulator configured to generate an output signal. The switching regulator includes a switch that is turned on or off for a specified amount of time during each of multiple switching cycles. The apparatus also includes a modulator configured to modulate the specified amount of time that the switch is turned on or off during at least some of the switching cycles. The specified amount of time that the switch is turned on or off during each of the switching cycles could be equal to tON/OFF+ΔtMODF(ωMOD), where tON/OFF denotes a constant amount of time, ΔtMOD denotes an amplitude of the second signal, ωMOD denotes a frequency of the second signal, and F( ) denotes a modulation function. This could help to modulate switching noise over a range of frequencies and spread electro-magnetic interference generated by the switching regulator.
    • 一种装置包括经配置以产​​生输出信号的恒定导通时间或恒定关断时间(COT)开关调节器。 开关调节器包括在多个开关周期中的每一个期间接通或断开指定时间量的开关。 该装置还包括调制器,其配置成在至少一些开关周期期间调制开关导通或关断的指定时间量。 在每个开关周期期间开关导通或关断的指定时间量可以等于tON / OFF +&Dgr; tMODF(ωMOD),其中tON / OFF表示恒定的时间量,Dgr; tMOD表示 第二信号的幅度ωMOD表示第二信号的频率,F()表示调制函数。 这可以帮助调制频率范围内的开关噪声,并扩展由开关调节器产生的电磁干扰。
    • 12. 发明授权
    • Bi-directional wireless charger
    • 双向无线充电器
    • US08901875B2
    • 2014-12-02
    • US13044186
    • 2011-03-09
    • James E. Schuessler
    • James E. Schuessler
    • H01M10/44H01M10/46H02J5/00H02J7/02H02J17/00
    • H02J7/02G01R31/3689H01M10/46H02J5/005H02J7/025H02J7/35H02J17/00H02J50/10H02J50/12H02J50/40H02J50/80
    • A bi-directional charging device includes a rechargeable battery, a coil coupled to the rechargeable battery, a selection mechanism that selectively causes power to be delivered from the coil to the battery and selectively causes power to be delivered from the battery to the coil, and a control mechanism. Upon determining that the coil is to provide power to the battery, the control mechanism causes the selection mechanism to selectively cause power to be delivered from the coil to the battery, and upon determining that the coil is to receive power from the battery, the control mechanism causes the selection mechanism to selectively cause power to be delivered from the battery to the coil.The bi-directional charging device includes a housing enclosing the rechargeable battery, the coil, the selection mechanism, and the control mechanism.
    • 双向充电装置包括可再充电电池,耦合到可再充电电池的线圈,选择机构,其选择性地使电力从线圈传送到电池并且选择性地使电力从电池传送到线圈;以及 一个控制机制。 在确定线圈要向电池供电时,控制机构使得选择机构选择性地使电力从线圈传送到电池,并且在确定线圈要从电池接收电力时,控制器 机构使选择机构选择性地使电力从电池传送到线圈。 双向充电装置包括封装可再充电电池,线圈,选择机构和控制机构的外壳。
    • 13. 发明授权
    • Clock generator with duty cycle control and method
    • 具有占空比控制和方法的时钟发生器
    • US08884676B2
    • 2014-11-11
    • US13215774
    • 2011-08-23
    • Kern Wai Wong
    • Kern Wai Wong
    • G01R29/02H03K9/08H03K3/017H03K5/04H03K7/08G06F1/04H03K3/00
    • H03K3/017
    • A clock generator circuit for producing a clock output having a controlled duty cycle is disclosed. A bi-stable circuit provides the clock output which is switchable to a first state in response to an edge of the input clock signal and to a second state in response to a feedback signal. A duty cycle detection circuit is configured to source a current to a node and to sink a current from the node depending upon the output clock state. A capacitor is connected to receive a duty cycle current relating to the current at the node, with a comparator circuit being configured to sense a voltage on the capacitor and to produce the feedback signal when the voltage is at a selected level.
    • 公开了一种用于产生具有受控占空比的时钟输出的时钟发生器电路。 双稳态电路提供时钟输出,该时钟输出响应于输入时钟信号的边沿而可切换到第一状态,并响应于反馈信号而提供到第二状态。 占空比检测电路被配置为根据输出时钟状态将电流发送到节点并从节点吸收电流。 连接电容器以接收与节点处的电流相关的占空比电流,比较器电路被配置为感测电容器上的电压并且当电压处于选定电平时产生反馈信号。
    • 15. 发明授权
    • System and method for over-voltage protection in a photovoltaic system
    • 光伏系统中过电压保护的系统和方法
    • US08884465B2
    • 2014-11-11
    • US12762134
    • 2010-04-16
    • Sameh Sarhan
    • Sameh Sarhan
    • H02J1/00H02J3/00H02H7/00H02H9/00H02M1/32
    • H02M1/32Y02E10/56Y10T307/685Y10T307/707
    • A photovoltaic array for use in an electrical power system includes multiple photovoltaic modules and a voltage converter coupled to at least one of the photovoltaic modules. The photovoltaic array also includes an over-voltage protection circuit. The over-voltage protection circuit includes an interface adapted to couple to an output of the voltage converter. The over-voltage protection circuit also includes a spike detector configured to detect a voltage spike in an output voltage of the voltage converter. The over-voltage protection circuit further includes a voltage control module configured to regulate an output voltage slew rate of the voltage converter in response to an over-voltage signal received from the spike detector.
    • 用于电力系统的光伏阵列包括耦合到至少一个光伏模块的多个光伏模块和电压转换器。 光伏阵列还包括过电压保护电路。 过电压保护电路包括适于耦合到电压转换器的输出的接口。 过电压保护电路还包括尖峰检测器,其被配置为检测电压转换器的输出电压中的电压尖峰。 过电压保护电路还包括电压控制模块,其被配置为响应于从尖峰检测器接收的过电压信号来调节电压转换器的输出电压转换速率。
    • 19. 发明授权
    • Error amplifier with built-in over voltage protection for switched-mode power supply controller
    • 带开关电源控制器的内置过压保护误差放大器
    • US08766612B2
    • 2014-07-01
    • US13082138
    • 2011-04-07
    • Tawen MeiZheng Li
    • Tawen MeiZheng Li
    • G05F1/575
    • H02M3/156
    • An error amplifier includes a first amplification circuit with a reference signal input and a feedback signal input representing the amplitude of a load voltage of a switched mode power supply. The error amplifier includes a difference amplifier providing a difference signal representing a difference between the reference signal and the feedback signal, provided for determining the duty cycle of a switching signal in the switched mode power supply. The first amplification circuit further includes a control circuit providing a control signal generated as a function of the difference between the reference signal and the feedback signal.The error amplifier also includes a second amplification circuit, included in a compensation circuit. The second amplification circuit receives the control signal, and the operating current of the second amplification circuit is adjusted by an amount indicated by the control signal.
    • 误差放大器包括具有参考信号输入的第一放大电路和表示开关模式电源的负载电压的振幅的反馈信号输入。 误差放大器包括差分放大器,其提供表示参考信号和反馈信号之间的差的差信号,用于确定开关模式电源中的开关信号的占空比。 第一放大电路还包括提供作为参考信号和反馈信号之间的差的函数而产生的控制信号的控制电路。 误差放大器还包括包括在补偿电路中的第二放大电路。 第二放大电路接收控制信号,并且将第二放大电路的工作电流调整为由控制信号指示的量。