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
    • 41. 发明授权
    • Power converter with first and second resonant circuits
    • 具有第一和第二谐振电路的功率转换器
    • US09065332B2
    • 2015-06-23
    • US13361736
    • 2012-01-30
    • John W. PooreGene A. Bornzin
    • John W. PooreGene A. Bornzin
    • H02M7/5383H02M3/145H03F3/217H02M3/155H02J17/00
    • H02M3/145H02J17/00H02J50/12H02M7/5383H02M2003/1557H03F3/2176
    • A high voltage resonant step-up convertor converts a lower voltage signal to a higher voltage signal. The converter may be used, for example, to supply power via electromagnetic coupling to an implantable medical device. In some embodiments, a power converter comprises a driver circuit and a resonant circuit. The resonant circuit generates a high voltage output signal at a selected frequency. The driver circuit is controlled by a low voltage signal and periodically generates a higher frequency signal (e.g., approximately twice the selected frequency) to drive the resonant circuit. In some embodiments, the driver circuit comprises another resonant circuit and a switching circuit. The switching circuit periodically pumps current to the other resonant circuit and isolates the two resonant circuits. The other resonant circuit periodically pumps current to the output resonant circuit.
    • 高压谐振升压转换器将较低电压信号转换为较高电压信号。 转换器可以用于例如通过电磁耦合向可植入医疗装置供电。 在一些实施例中,功率转换器包括驱动器电路和谐振电路。 谐振电路以选定的频率产生高电压输出信号。 驱动器电路由低电压信号控制,并且周期性地产生较高频率信号(例如,大约是所选频率的两倍)以驱动谐振电路。 在一些实施例中,驱动器电路包括另一个谐振电路和开关电路。 开关电路周期性地将电流泵送到另一个谐振电路并隔离两个谐振电路。 另一个谐振电路周期性地将电流泵送到输出谐振电路。
    • 43. 发明授权
    • DC/DC converter control circuits and DC/DC converter systems with power saving mode in accordance with an external control signal
    • DC / DC转换器控制电路和DC / DC转换器系统,具有符合外部控制信号的省电模式
    • US06882133B2
    • 2005-04-19
    • US10134751
    • 2002-04-30
    • Akira HaraguchiTakashi MatsumotoKyuichi Takimoto
    • Akira HaraguchiTakashi MatsumotoKyuichi Takimoto
    • H02M3/145H02M1/36H02M3/00H02M3/155G05F1/40
    • H02M1/36H02M3/155H02M2001/0032Y02B70/16Y10S323/901
    • There are provided a DC/DC converter control circuit and a DC/DC converter system having high degree of freedom of mounting and achieving the following matters: (1) housing a DC/DC converter control circuit in a package miniaturized by reducing the number of terminals; and (2) starting-up a power saving mode in response to an input of an external control signal to a DC/DC converter system. A frequency setting terminal (RT) is connected to a resistance element RT and a switching section 1 in series, between the terminal and ground voltage. An external control signal CTL is inputted to the switching section 1. When an external control signal CTL turns off the switching section 1, connection to the ground voltage is opened and an oscillation driving section 4 does not operate. Thereby, power saving mode is kept. When the switching section 1 is turned on, connection to the ground voltage is closed and the oscillation driving section 4 starts up. Subsequently, a bias control section 5 starts up and bias condition toward the resistance element RT is controlled. Thereby oscillation frequencies approximate to a setting value. Control of power saving mode can be thus carried out without a dedicated terminal for an external control signal CTL.
    • 提供了具有高安装自由度的DC / DC转换器控制电路和DC / DC转换器系统,并且实现以下事项:(1)通过减少数量来容纳小型化的封装中的DC / DC转换器控制电路 终端; 以及(2)响应于向DC / DC转换器系统的外部控制信号的输入而启动省电模式。 频率设定端子(RT)在端子和接地电压之间串联连接到电阻元件RT和开关部分1。 外部控制信号CTL被输入到切换部分1.当外部控制信号CTL关闭切换部分1时,与地电压的连接打开,振荡驱动部分4不工作。 从而,保持省电模式。 当开关部1接通时,接地电压的接通闭合,振荡驱动部4起动。 随后,偏置控制部分5启动,并且控制朝向电阻元件RT的偏压状态。 从而振荡频率接近设定值。 无需外部控制信号CTL的专用端子即可进行省电模式的控制。
    • 47. 发明授权
    • Control having conduction limit means to vary duty cycle of power switch
    • 控制具有导通限制意味着电力开关的变化周期
    • US3855520A
    • 1974-12-17
    • US31759672
    • 1972-12-22
    • ALLIS CHALMERS
    • STICH F
    • H02M3/145H02P7/29H02P7/14
    • H02P7/29Y10S388/903Y10S388/921
    • A pulse width modulation control for supplying variable width voltage pulses from a battery to a motor includes a power switch, an oscillator for providing a succession of triggering pulses, a monostable multivibrator operated by each triggering pulse to generate a rectangular guard pulse, a bistable logic gate latch triggered by each guard pulse to a first condition wherein it generates a control signal to turn on the power switch, a variable delay circuit operated by each triggering pulse to initiate a timing interval and to provide a timing signal after a selectively variable time delay which triggers the bistable latch to a second condition wherein it removes the control signal to thereby turn off the power switch, a conduction limit circuit which senses the collector-to-emitter voltage across the power switch and generates a conduction limit signal when the power switch comes out of saturation, a first logic gate between the bistable latch and the power switch which, when enabled, transmits the control signal to turn on the power switch, and a second logic gate which is operated by the conduction limit signal in the absence of a guard pulse to disable the first gate to thus turn off the power switch and reduce the duty cycle of each voltage pulse and is operated by each guard pulse to enable the first gate and thus permit the power switch to turn on at the beginning of each voltage pulse.
    • 用于从电池向电动机提供可变宽度电压脉冲的脉冲宽度调制控制器包括电源开关,用于提供一连串触发脉冲的振荡器,由每个触发脉冲操作的单稳态多谐振荡器以产生矩形保护脉冲,双稳态逻辑 门闩锁由每个保护脉冲触发到第一状态,其中它产生控制信号以接通功率开关,可变延迟电路由每个触发脉冲操作以启动定时间隔,并且在选择性可变的时间延迟之后提供定时信号 其将双稳态锁存器触发到第二状态,其中它去除控制信号从而关闭电源开关;导通限制电路,其检测电源开关两端的集电极到发射极的电压,并且当电源开关 出现饱和,双稳态锁存器和电源开关之间的第一个逻辑门,当使能时, 发送控制信号以接通电源开关;以及第二逻辑门,其在没有保护脉冲的情况下由导通极限信号操作,以禁用第一门,从而关闭电源开关,并减少每个 电压脉冲,并且由每个保护脉冲操作以使能第一栅极,从而允许电源开关在每个电压脉冲开始时导通。