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    • 1. 发明专利
    • Series connection circuit for light emitting diode
    • 用于发光二极管的系列连接电路
    • JPS59103565A
    • 1984-06-15
    • JP21130682
    • 1982-12-03
    • Hitachi Ltd
    • SATOU KATSUOKOSEKI SHIYOUICHIROU
    • H02M1/092
    • H02M1/092
    • PURPOSE:To enable to emit a light from other light emitting diode even if one light emitting diode becomes defective by providing a bypass circuit in parallel with the respective light emitting diodes connected in series with each other. CONSTITUTION:The arm of a converter has five photothyristors 1-5. The photothyristors 1-5 are respectively connected to corresponding light emitting diodes 21-25 through photoguides 11-15. Both terminals of a series connection circuit of the diodes 21-25 are connected to a DC power source 7 through a switch 6. Bypass circuits 31-35 are respectively connected in parallel with the diodes 21-25. The circuits 31-35 are composed of diodes 41-45.
    • 目的:即使通过与彼此串联连接的各个发光二极管并联提供旁路电路,即使一个发光二极管发生故障,也能够从其他发光二极管发出光。 构成:转换器的臂有五个光闸晶闸管1-5。 光敏晶体管1-5分别通过光导11-15连接到对应的发光二极管21-25。 二极管21-25的串联电路的两个端子通过开关6连接到直流电源7.旁路电路31-35分别与二极管21-25并联连接。 电路31-35由二极管41-45组成。
    • 2. 发明专利
    • Monitor for thyristor
    • 监督员监督
    • JPS58201572A
    • 1983-11-24
    • JP8708482
    • 1982-05-20
    • Mitsubishi Electric Corp
    • NAKATANI TOSHIOSASHIDA NOBUO
    • H02M1/00H02M1/092
    • H02M1/092
    • PURPOSE:To enhance the reliability and accuracy of a thyristor by separating the thyristor voltage and a gate voltage and monitoring them at the ground voltage side. CONSTITUTION:A voltage which is divided from a thyristor voltage is applied through a logic element 31 to a light emitting diode 7 during the period that the thyristor 1 conducts upon reception of a gate voltage GP. When a gate voltage GP is applied to the thyristor 1, the thyristor 1 is conducted, the gate voltage GP is applied through the element 31 to the diode 7. A light signal from the diode 7 is transmitted through a light transmission line 11 to a photoreceptor diode 12. The output of the diode 12 is inputted through an amplifier 13 to logic product elements 33, 34, which respectively produce outputs corresponding to the gate and thyristor voltages, which are applied to a gate signal monitor 36 and a photoreceptor 14.
    • 目的:通过分离晶闸管电压和栅极电压并在接地电压侧进行监控,提高晶闸管的可靠性和精度。 构成:在晶闸管1接收到栅极电压GP时,通过逻辑元件31向发光二极管7施加与晶闸管电压分压的电压。 当栅极电压GP施加到晶闸管1时,晶闸管1导通,栅极电压GP通过元件31施加到二极管7.来自二极管7的光信号通过光传输线11传输到 感光二极管12.二极管12的输出通过放大器13输入到分别产生对应于栅极和晶闸管电压的输出的逻辑乘积元件33,34,其施加到栅极信号监视器36和感光体14。
    • 5. 发明专利
    • Gate system of photothyristor with overvoltage protecting function
    • 具有过压保护功能的摄像机门控系统
    • JPS61139264A
    • 1986-06-26
    • JP25851984
    • 1984-12-07
    • Toshiba Corp
    • INO HIDETOSHITAKAHASHI TADASHI
    • H02M1/00H02M1/092
    • H02M1/092
    • PURPOSE:To prevent a photothyristor from damaging by switching to a healthy optical gate light emitting diode rapidly even if a phototrigger thyristor is fired due to a defect of the diode. CONSTITUTION:Light emitting diodes 8-1,...,8-N connected in parallel with photothyristors 6 apply a light signal to a photoreceptor 12 when a voltage higher than the prescirbed value is applied to the thyristor. Thus, since only the diode 8-2 connected with the photothyristor 6-2 generates a light signal, a '1' output is produced only for the signal 2b converted by the photoreceptor 12 into an electric signal. Thus, when at least one signal of signals 1b-Nb is different from other signals, an incoincidence signal C is generated from an incoincidence detector 13. This signal C closes a switch 14 to switch a DC power source 1 connected with light emitting diode group of a system A with light emitting diode group of a system B.
    • 目的:为了防止由于二极管缺陷而使光触发晶闸管发光,因此快速切换到健康的光栅发光二极管可防止光闸晶体管损坏。 构成:当与晶闸管6并联连接的发光二极管8-1,...,8-N,当将高于预定值的电压施加到晶闸管时,将光信号施加到感光体12。 因此,由于只有与光敏晶体管6-2连接的二极管8-2产生光信号,所以仅将由感光体12转换的信号2b的“1”输出产生为电信号。 因此,当信号1b-Nb的至少一个信号与其他信号不同时,从不规则检测器13产生不连续信号C.该信号C闭合开关14以切换与发光二极管组连接的直流电源1 具有系统B的发光二极管组的系统A
    • 7. 发明专利
    • Detecting method of defect for thyristor
    • 检测器的缺陷检测方法
    • JPS59122366A
    • 1984-07-14
    • JP23258282
    • 1982-12-27
    • Mitsubishi Electric Corp
    • OONISHI SHIYUNICHIROUNAITOU HATSUHIKO
    • H02H7/12H02M1/00H02M1/092
    • H02M1/092
    • PURPOSE:To discriminate the presence or absence of a defect always accurately without using an external synchronizing signal by sampling a detection signal, inputting it to a defect discriminator, storing sampling detected values for the prescribed period and discriminating it. CONSTITUTION:A defect discriminator DF has a data storage circuit M, an input interface I for inputting by sampling and detecting the outputs of comparators C1, C2,... in the storage circuit M, a defect discriminator FO for discriminating the presence or absence of a defect by reading out the data stored in the storage circuit M, and an output interface O. The discriminator FO discriminates as thyristors TH1, TH2 normally operated when at least ''1'' information exists once in the sampling detected value stored for the prescribed period.
    • 目的:通过对检测信号进行采样,将缺陷识别符输入到外部同步信号,通过存储规定期间内的取样检测值,进行鉴别,可以始终准确地区分缺陷的有无缺陷。 构成:缺陷鉴别器DF具有数据存储电路M,用于通过采样和检测存储电路M中的比较器C1,C2,...的输出进行输入的输入接口I,用于鉴别存在或不存在的缺陷鉴别器 通过读出存储在存储电路M中的数据和输出接口O.鉴别器FO鉴别为在存储的采样检测值中至少存在一个“1”信息时正常操作的晶闸管TH1,TH2, 规定期限。
    • 8. 发明专利
    • Thyristor converter
    • THYRISTOR转换器
    • JPS5959071A
    • 1984-04-04
    • JP16884982
    • 1982-09-28
    • Toshiba Corp
    • YOSHINAKA JIYUNICHITAKAHASHI TADASHI
    • H02M1/092
    • H02M1/092
    • PURPOSE:To equalize the transmitting characteristic of a light medium by adjusting polishing degree of the light medium for transmitting a signal in response to the length. CONSTITUTION:Optical fibers 4-1A, 4-1B, 4-2A, 4-2B are employed for transmitting a firing signal (light) of a photothyristor in a light thyristor bulb 1. The bulb 1 is controlled by a control circuit 3 through these optical fibers. In this case, the transmission loss of the entire optical fibers can be maintained substantially constant by a method of raising the polishing degree of the long optical fibers and decreasing the polishing degree of the short optical fiber.
    • 目的:通过调整用于响应于该长度发送信号的光介质的抛光度来均衡光介质的透射特性。 结构:光纤4-1A,4-1B,4-2A,4-2B用于在光晶闸管灯泡1中传输光敏晶体管的点火信号(光)。灯泡1由控制电路3通过 这些光纤。 在这种情况下,通过提高长光纤的研磨度和降低短光纤的研磨度的方法,整个光纤的传输损耗可以保持基本恒定。