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
    • 2. 发明授权
    • Synchronous switching circuit
    • 同步开关电路
    • US3917962A
    • 1975-11-04
    • US44767574
    • 1974-03-04
    • GRIGSBY BARTON INC
    • PASCENTE JOSEPH E
    • H03K17/13H03K17/72
    • H03K17/136Y10S323/902
    • A switching circuit for controlling the application of an a.c. source to a load employs a detector for triggering a control thyristor at a zero-voltage crossing of the a.c. source and means for supplying a latch current to the gate of the control thyristor during succeeding cycles of the a.c. source. The control thyristor is employed to latch a switching thyristor which, in turn, applies the power from the a.c. source to the load. The detector includes a transistor with a switching means connected between the transistor control terminal and one of the load terminals and biased so that the transistor is normally conductive when the switching means is open circuited to thereby shunt current away from the gate terminal of the control thyristor. When the switching means is conductive, the transistor is biased to be rendered non-conductive when the a.c. source voltage passes through zero and thereby applies current to the gate terminal of the control thyristor.
    • 一种开关电路,用于控制交流电的应用。 负载的源使用检测器来触发在交流电压的零电压交叉处的控制晶闸管。 源和装置,用于在交流电的后续周期期间向控制晶闸管的栅极提供锁存电流。 资源。 控制晶闸管用于锁存开关晶闸管,开关晶闸管依次施加来自交流电源的功率。 来源到负载。 检测器包括晶体管,其具有连接在晶体管控制端子和负载端子之一之间的开关装置,并被偏置,使得当开关装置断开时晶体管通常导通,从而使电流远离控制晶闸管的栅极端 。 当开关装置导通时,晶体管被偏置为使其不导通。 源电压通过零,从而将电流施加到控制晶闸管的栅极端子。