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    • 81. 发明专利
    • Overvoltage protecting device of optically firing thyristor
    • 光电保护装置的过电压保护装置
    • JPS5911772A
    • 1984-01-21
    • JP12083582
    • 1982-07-12
    • Kansai Electric Power Co Inc:TheMitsubishi Electric Corp
    • MATSUMURA SUSUMUYANO MASAOSASHIDA NOBUOYAMAMOTO YOSHIHIKO
    • H02H7/12H02H7/122H02M1/00H02M1/092H03K17/082H03K17/72H03K17/79H02M1/18
    • H02M1/00H02M1/092H03K17/0824H03K17/72H03K17/79
    • PURPOSE: To prevent the damage of a voltage suppression element by connecting the voltage suppression element and a detector which detects the forward voltage in parallel with an optical firing thyristor, thereby protecting the firing thyristor against an overvoltage or monitoring the number of elements, to which the forward voltage is applied.
      CONSTITUTION: Voltage suppression elements 54∼57 are connected in parallel with optical firing thyristors 50∼53, and light emitting elements 66∼69 which generate time signals, to which the forward voltage is applied, are further connected. The output of an operational amplifier 86 for adding the voltage signals becomes a value proportional to the number of the firing thyristors, to which the voltage is forwardly applied. When the forward voltage is applied to the optically firing thyristors less than 50, the output of an AND circuit becomes "1", a signal is applied to a firing signal generator 22, a transistor 25 is operated, light emitting elements 27∼30 emits lights, and firing signals are fed to the thyristors 50∼53. Accordingly, all thyristors 50∼53 are fired, thereby eliminating the voltages at the elements 54∼57.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:为了通过连接电压抑制元件和检测正向电压的检测器来防止电压抑制元件的损坏,该检测器与光触发晶闸管并联,从而保护点火晶闸管免受过电压或监控元件的数量, 施加正向电压。 构成:电压抑制元件54-57与光激发晶闸管50-53并联连接,并且产生施加正向电压的时间信号的发光元件66-69被进一步连接。 用于增加电压信号的运算放大器86的输出变成与向前施加电压的点火晶闸管的数量成比例的值。 当正向电压施加到小于50°的光学烧制晶闸管时,AND电路的输出变为“1”,信号施加到点火信号发生器22,晶体管25被操作,发光元件27- 30发光,并且点火信号被馈送到晶闸管50-53。 因此,所有晶闸管50-53被烧制,从而消除元件54-57处的电压。
    • 82. 发明专利
    • Gate driving system of gto in series connection
    • GTO系列连接门控驱动系统
    • JPS58204619A
    • 1983-11-29
    • JP8742982
    • 1982-05-24
    • Toshiba Corp
    • WATANABE YUKIO
    • H02M1/06H03K17/10H03K17/73H03K17/79
    • H03K17/79
    • PURPOSE:To prevent the destruction of a gate turn-off thyristor in advance independently of its current value and current waveform, by supplying its on- gate current without fail for a period when the gate turn-off thyristor is desired to be turned on. CONSTITUTION:In turning on a transistor (TR)214, a TR1 in a photocoupler 213 is turned on and an output current of an on-gate power supply 23 flows as the on-gate current of the gate turn-off thyristor GTO28. When a TR224 of an off- stage generating circuit 22 is turned on with the TR1 turned on, a TR2 of the photocoupler 223 is turned on, resulting in turning on a TR26 for current amplification. With the TR26 turned on, an output current of an off-gate power supply 25 flows. All the output current of the power supply 3 flows via a resistor 27, the power supply 25 and the TR26, the on-gate current flowing to the GTO28 is extinguished and instead, the output current of the power supply 25 flows to the GTO28 via the resistor 27 and the TR26 as an off-gate current. Thus, all the GTOs in series connection are turned on and off together.
    • 目的:为了防止栅极关断晶闸管在电流值和电流波形下的破坏,通过在栅极关断晶闸管需要导通的同时,不间断地提供栅极电流。 构成:在接通晶体管(TR)214时,光电耦合器213中的TR1导通,栅极电源23的输出电流作为栅极截止晶闸管GTO28的栅极电流流动。 当TR1导通时,使旁路发生电路22的TR224导通,光电耦合器223的TR2导通,导致用于电流放大的TR26导通。 当TR26导通时,门极电源25的输出电流流过。 电源3的所有输出电流经由电阻27,电源25和TR26流过流向GTO28的栅极电流而熄灭,而电源25的输出电流流经GTO28经由 电阻器27和TR26作为截止电流。 因此,串联的所有GTO都一起打开和关闭。
    • 84. 发明专利
    • Solid state relay
    • 固态继电器
    • JP2009060322A
    • 2009-03-19
    • JP2007225159
    • 2007-08-31
    • T K R:Kk株式会社テーケィアール
    • UEHARA MASAMIYONG CHIN CHYE
    • H03K17/78H03K17/08H03K17/725
    • H03K17/08144H03K17/725H03K17/79
    • PROBLEM TO BE SOLVED: To provide a solid state relay capable of preventing increase of cost, of preventing an abnormal operation, and of preventing a component adjoining a resistor of a snubber circuit from breaking down. SOLUTION: The solid state relay 20 includes a third connection line 28c connecting a connection point (d) between a capacitor C 0 and a resistor R 0 constituting the snubber circuit S to a gate terminal G of a triac TA. The solid state relay 20 further includes a resistor R 2 arranged on the third connection line 28c, and a capacitor C arranged between a connection point (e) and a connection point (b). COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供能够防止成本增加,防止异常操作以及防止与缓冲电路的电阻器相邻的部件分解的固态继电器。 解决方案:固态继电器20包括连接构成缓冲器的电容器C 0 和电阻器R 0 之间的连接点(d)的第三连接线28c 电路S连接到三端双向可控硅开关元件TA的栅极端子G. 固态继电器20还包括布置在第三连接线28c上的电阻器R SB 2和布置在连接点(e)和连接点(b)之间的电容器C. 版权所有(C)2009,JPO&INPIT
    • 85. 发明专利
    • Zero voltage semiconductor switch circuit for ac load
    • 用于交流负载的零电压半导体开关电路
    • JPS6128217A
    • 1986-02-07
    • JP14838284
    • 1984-07-17
    • Toshiba Component KkToshiba Corp
    • KONDO KAORUTAKADA JUNJI
    • H03K17/13H03K17/79
    • H03K17/79H03K17/136
    • PURPOSE:To avoid one-way power application of AC to a load even in any case by connecting the 2nd thyristor in anti-parallel with the 1st thyristor and conducting the 2nd thyristor with a discharge voltage of a capacitor charged by one phase of an AC power supply. CONSTITUTION:In an AC load zero voltage semiconductor switch circuit controlling an inductive load such as a solenoid or a motor, the 2nd thyristor 25 is connected in anti-parallel with the 1st thyristor 16 conducted near the zero voltage of the AC power supply and an optical signal, and the 2nd thyristor 25 is conducted by a discharge voltage of a capacitor 26 charged by a positive potential phase of the AC power supply. Thus, even if the on/off interval of the switch 12 is short, the power conduction is started at the phase of positive potential of the AC power supply 19 to a load 18 and the power application is stopped at the phase of negative potential. Thus, excellent load control is attained.
    • 目的:为了避免AC负载对负载的单向电源施加,即使在任何情况下,通过将第二晶闸管与第一晶闸管反并联连接,并以由AC的一相充电的电容器的放电电压导通第二晶闸管 电源。 构成:在控制诸如螺线管或电动机的感性负载的交流负载零电压半导体开关电路中,第二晶闸管25与在交流电源的零电压附近传导的第一晶闸管16反并联连接, 光信号,第二晶闸管25由通过交流电源的正电位相充电的电容器26的放电电压进行。 因此,即使开关12的接通/断开间隔短,在负载18的交流电源19的正电位的相位开始电力通电,电力施加在负电位的相位停止。 因此,实现了优异的负载控制。
    • 88. 发明专利
    • Priority controlling circuit of solid-state relay
    • 固态继电器的优先控制电路
    • JPS58188933A
    • 1983-11-04
    • JP7241682
    • 1982-04-28
    • Toshiba Corp
    • TAKADA JIYUNJIMINAMITAKE MASAYUKI
    • H03K17/78H03K17/79
    • H03K17/79
    • PURPOSE:To use the priority controlling circuit of a solid-state relay suitably for the forward/backward switching circuit of a motor, etc., by providing the 1st and the 2nd priority control switching transistors (TR) and the 1st and the 2nd clamping TRs, and controlling which of two solid-state relays is used preferentially. CONSTITUTION:The solid-state relays 11 and 12 have input and output terminals insulated by a photocoupler 22 and priority control switching circuits 41 and 43 are inserted in series between the LED23 of the coupler 22 and driving input terminals 16 and 17. Further, clamping TRs 42 and 44 are connected in parallel to the LEDs 23 of the couplers 22 of the relays 42 and 44; and the clamping TR44 for the relay 12 is driven by the on output of the circuit 41 for the relay 11, and the TR42 for the relay 11 is driven by the on output of the circuit 43 for the relay 12.
    • 目的:通过提供第一和第二优先级控制开关晶体管(TR)和第一和第二钳位(TR),通过适当地为电动机的正向/反向开关电路等使用固态继电器的优先控制电路 TR,并且优先使用两个固态继电器中的哪一个。 构成:固态继电器11和12具有由光电耦合器22绝缘的输入和输出端子,并且优先控制开关电路41和43串联插入耦合器22的LED23和驱动输入端子16和17之间。此外,夹紧 TRs42和44并联连接到继电器42和44的耦合器22的LED 23; 并且继电器12的钳位TR44由继电器11的电路41的导通输出驱动,继电器11的TR42由继电器12的电路43的导通输出驱动。
    • 89. 发明专利
    • Electromagnetic wave coupling semiconductor switch device
    • 电磁波耦合半导体开关器件
    • JPS57125524A
    • 1982-08-04
    • JP1134681
    • 1981-01-28
    • Mitsubishi Electric Corp
    • AKAMATSU MASAHIKO
    • H02M1/08H03K17/73H03K17/78H03K17/79
    • H03K17/79
    • PURPOSE:To improve the relation among a turn-on delay time, dV/dt performance and control sensitivity, by controlling a semiconductor swith element with a low voltage obtaned from a voltage division means toward conduction and shortenting the control electrode of the said element through an auxiliary semiconductor switch. CONSTITUTION:When no input IF is present, no light is radiated on a phototransistor (TR)6 and the TR is nonconductive. Thus the current in the voltage division means 11, 14 flows to an auxiliary TR13 as shown in dotted arrows, the TR13 shortens the control electrode pair of an SCR1 and the dV/dt performance can be increased. When the input IF is given, the TR6 turns on and the current flows to the control electrode of the SCR as shown in the arrow 16. In this case, a low voltage power is supplied to the TR6 from the means 11, 14, then at least, either one of transmission speed and sensitivity can be improved.
    • 目的:通过控制从分压装置获得的低电压的半导体开关元件,通过控制所述元件的控制电极的导通和短路来改善导通延迟时间,dV / dt性能和控制灵敏度之间的关系 辅助半导体开关。 构成:当没有输入IF时,光电晶体管(TR)6上没有光照射,TR不导通。 因此,分压装置11,14中的电流如虚线箭头所示流到辅助TR13,TR13缩短了SCR1的控制电极对,并且可以提高dV / dt性能。 当给定输入IF时,TR6导通,电流如箭头16所示流向SCR的控制电极。在这种情况下,从装置11,14向TR6提供低电压电力,然后 至少可以提高传输速度和灵敏度之一。
    • 90. 发明专利
    • Trigger circuit for thyristor
    • 触发器触发电路
    • JPS5722374A
    • 1982-02-05
    • JP9564680
    • 1980-07-15
    • Fuji Electric Co Ltd
    • MOTOYOSHI OSAMUKONISHI SHIGEO
    • H02M1/08H03K17/73H03K17/79
    • H03K17/79
    • PURPOSE:To obtain a gate current having sufficient quantity and width for the trigger circuit of a thyristor by a method wherein an electric power source voltage for trigger is obtained from both ends of the capacitor in an RC snubber circuit, and moreover a Zener diode is connected between the gate and cathode of the main thyristor. CONSTITUTION:When a photo auxiliary thyristor PTH is conducting by optical control and the main thyristor TH is not triggered, a voltage stored in the capacitor C in the RC snubber circuit is supplied to the gate electrode of the main thyristor TH through protective resistors RD, RG to insure constantly the necessary electric power source voltage for trigger. Moreover because the electric power source voltage for trigger is held at the necessary constant voltage value by the Zener diode ZD, the gate pulse current having constantly sufficient quantity and width can be obtained irrelevant to phase deviation of the electric power source voltage for trigger.
    • 目的:通过RC振荡电路中从电容器的两端获得用于触发的电源电压的方法,获得晶闸管的触发电路具有足够数量和宽度的栅极电流,而且齐纳二极管 连接在主晶闸管的栅极和阴极之间。 构成:当光辅助晶闸管PTH通过光学控制传导并且主晶闸管TH未被触发时,存储在RC缓冲电路中的电容器C中的电压通过保护电阻器RD提供给主晶闸管TH的栅电极, RG保证不断的触发电源电压。 此外,由于用于触发的电源电压通过齐纳二极管ZD保持在必要的恒定电压值,所以可以获得具有恒定足够数量和宽度的栅极脉冲电流,与触发电源电压的相位偏差无关。