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    • 3. 发明专利
    • Semiconductor switch
    • 半导体开关
    • JP2013106310A
    • 2013-05-30
    • JP2011250811
    • 2011-11-16
    • Panasonic Corpパナソニック株式会社
    • NISHIKAWA HIDEOOMORI TAKESHI
    • H03K17/78H03K17/13H03K17/16
    • PROBLEM TO BE SOLVED: To provide a semiconductor switch capable of increasing energy efficiency.SOLUTION: A semiconductor switch 1 drives an LED 2 by a driving circuit 3 to cause the LED 2 to emit light. The light emitted from the LED 2 is received by a light-receiving unit 4. The driving circuit 3 includes a bipolar transistor 31, a coil 32, and a diode 33 and the like. The bipolar transistor 31 is switched to a conductive state and a non-conductive state. When the bipolar transistor 31 is in the conductive state, current is supplied from a power supply to the LED 2. When the bipolar transistor 31 is in the non-conductive state, current is not supplied from the power supply to the LED 2. The coil 32 is connected in series to the LED 2. When the bipolar transistor 31 switches from the conductive state to the non-conductive state, the coil 32 produces an induced electromotive force due to a self-induced action. The diode 33 is connected in parallel to the LED 2 and the coil 32. When the bipolar transistor 31 is in the non-conductive state, the diode 33 recycles current to the LED 2 by the induced electromotive force produced by the coil 32.
    • 要解决的问题:提供能够提高能量效率的半导体开关。 解决方案:半导体开关1通过驱动电路3驱动LED2以使LED2发光。 从LED2发射的光被受光单元4接收。驱动电路3包括双极晶体管31,线圈32和二极管33等。 双极晶体管31切换到导通状态和非导通状态。 当双极晶体管31处于导通状态时,电流从电源提供给LED 2.当双极晶体管31处于非导通状态时,不从电源向LED 2提供电流。 线圈32与LED2串联连接。当双极晶体管31从导通状态切换到非导通状态时,线圈32由于自身引起的动作而产生感应电动势。 二极管33与LED2和线圈32并联连接。当双极晶体管31处于非导通状态时,二极管33通过线圈32产生的感应电动势来再循环到LED2的电流。 P>版权所有(C)2013,JPO&INPIT
    • 4. 发明专利
    • Load control device
    • 负载控制装置
    • JP2012078989A
    • 2012-04-19
    • JP2010222267
    • 2010-09-30
    • Toshiba Lighting & Technology Corp東芝ライテック株式会社
    • MATSUDA MITSUHIRO
    • G05F1/56H02M7/06H03K17/13
    • PROBLEM TO BE SOLVED: To provide a load control device capable of stably providing an operating power for a sensor, a control circuit, and the like, eliminating undesirable power loss, and being miniaturized.SOLUTION: While a constant voltage diode 15 is in a non-conducting state, a transistor 18 is off, a transistor 20 is on, and a charge control switch 13 is on. An operating power supply section 10 is thus charged by an output of an AC power supply AC. When reaching a conduction voltage (a prescribed voltage) of the constant voltage diode 15, a transistor 23 is fed with a bias signal to a base to be turned on. Therefore, an input of an inverter 8 becomes low and an output becomes high, and an FET 5 is turned on. On the other hand, the transistor 18 is on, the transistor 20 is off, and the charge control switch 13 is off.
    • 要解决的问题:提供能够稳定地提供用于传感器,控制电路等的操作功率的负载控制装置,消除不期望的功率损耗并且小型化。 解决方案:当恒压二极管15处于非导通状态时,晶体管18截止,晶体管20导通,充电控制开关13导通。 因此,通过AC电源AC的输出对工作电源部10进行充电。 当达到恒压二极管15的导通电压(规定电压)时,将晶体管23馈送到基极以导通。 因此,逆变器8的输入变低,输出变高,FET5导通。 另一方面,晶体管18导通,晶体管20截止,充电控制开关13断开。 版权所有(C)2012,JPO&INPIT
    • 7. 发明专利
    • Power supply device, controller for power supply device, and electronic device
    • 电源装置,电源装置用控制器及电子装置
    • JP2008061440A
    • 2008-03-13
    • JP2006237429
    • 2006-09-01
    • Fujitsu Ten Ltd富士通テン株式会社
    • KOMIYA MOTOKI
    • H02M3/155H03K17/13H03K17/695
    • H02M3/156
    • PROBLEM TO BE SOLVED: To provide a power supply device, a controller for the power supply device, and an electronic device wherein power loss arising from switching can be suppressed by carrying out zero-current switching. SOLUTION: The power supply device includes: a first switching circuit (12) that determines the midpoint voltage of an intermediate node when it is turned on; and a resonance circuit (10) that resonates the midpoint voltage. The power supply device converts input voltage into output voltage through the midpoint voltage. The controller for the power supply device includes a first timing circuit (70). When the midpoint voltage becomes equal to or higher than a first predetermined voltage, the first timing circuit turns on the first switching circuit a certain time later. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供电源装置,用于电源装置的控制器以及通过执行零电流切换可以抑制由切换引起的功率损耗的电子装置。 电源装置包括:第一开关电路(12),其确定中间节点接通时的中点电压; 以及谐振电路(10),其谐振中点电压。 电源设备通过中点电压将输入电压转换为输出电压。 电源装置的控制器包括第一定时电路(70)。 当中点电压变得等于或高于第一预定电压时,第一定时电路在一段时间后接通第一开关电路。 版权所有(C)2008,JPO&INPIT
    • 8. 发明专利
    • Zero-cross signal output unit, image processor
    • 零交叉信号输出单元,图像处理器
    • JP2005286707A
    • 2005-10-13
    • JP2004097968
    • 2004-03-30
    • Sharp Corpシャープ株式会社
    • IWABAYASHI KAZUYAYONETANI YOSHIFUMIISHII HIROSHI
    • H03K5/1536H03K17/13
    • PROBLEM TO BE SOLVED: To obtain a zero-cross signal by removing the influence of noise from the output signal of an AC power supply. SOLUTION: The zero-cross signal output unit comprises a half-wave shaping circuit 1 for generating a half-wave shaping signal based on the output signal from an AC power supply PW, a circuit 2 for delaying the half-wave shaping signal using a capacitor C1, and a circuit 4 for generating the exclusive OR signal of the half-wave shaping signal, before and after being delayed through the delay circuit 2, from an XOR detection element 3 and outputting a zero-cross signal based on the exclusive OR signal. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:通过消除来自交流电源的输出信号的噪声的影响来获得零交叉信号。 解决方案:零交叉信号输出单元包括用于基于来自交流电源PW的输出信号产生半波整形信号的半波整形电路1,用于延迟半波整形的电路2 使用电容器C1的信号,以及用于通过延迟电路2延迟通过延迟电路2产生半波整形信号的异或信号的电路4,从XOR检测元件3输出基于 异或信号。 版权所有(C)2006,JPO&NCIPI
    • 9. 发明专利
    • Solid state relay
    • 固态继电器
    • JP2005260721A
    • 2005-09-22
    • JP2004071362
    • 2004-03-12
    • Omron Corpオムロン株式会社
    • KITAHARA YASUYUKI
    • H03K17/725H03K17/10H03K17/13H03K17/78
    • PROBLEM TO BE SOLVED: To provide a solid state relay in which a plurality of control semiconductor devices (standard components) are connected in series and ON/OFF characteristics of the control semiconductor devices can be aligned and balanced with respect to a high voltage. SOLUTION: There are provided photocouplers 3a-3k connected in series, zero cross circuits 4a-4k connected in series and control switching elements 5a-5k connected in series, the switching elements are simultaneously turned on/off while aligning characteristics of the switching elements connected in series so as to equalize voltage resistance of the switching elements. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了提供一种固态继电器,其中多个控制半导体器件(标准部件)串联连接,并且控制半导体器件的ON / OFF特性可以相对于高的对准和平衡 电压。 解决方案:提供串联连接的光电耦合器3a-3k,串联连接的零交叉电路4a-4k和串联连接的控制开关元件5a-5k,开关元件同时导通/截止,同时使 开关元件串联连接,以均衡开关元件的耐压。 版权所有(C)2005,JPO&NCIPI