公开(公告)号：US3649849A

公开(公告)日：1972-03-14

申请号：US3649849D

申请日：1970-09-18

Applicant: WAGNER ELECTRIC CORP

Inventor： MCGUIRK FRANCIS A JR

IPC: H03K17/13 ,  H03K17/00

CPC classification number: H03K17/136

Abstract: Trigger circuits for rendering conductive a gate-controlled full-wave alternating current semiconductor switch (thyristor) by generating triggering pulses which are synchronized with the alternating current voltage applied to the main terminals of said switch so that said triggering pulses are provided to the gate of the switch as said alternating current voltage wave passes through the null point.

Abstract translation: 用于通过产生与施加到所述开关的主端子的交流电压同步的触发脉冲来使栅控全波交流半导体开关（晶闸管）导通的触发电路，使得所述触发脉冲提供给 所述开关作为所述交流电压波通过所述零点。

公开(公告)号：US3553525A

公开(公告)日：1971-01-05

申请号：US3553525D

申请日：1969-05-28

Applicant: WAGNER ELECTRIC CORP

Inventor： MCGUIRK FRANCIS A JR

IPC: H03K21/08 ,  H01J1/72 ,  H01J31/06

CPC classification number: H03K21/08

Abstract: A control circuit for controlling the symbols displayed by a plurality of lamp indicators, each having a cathode and a plurality of phosphor-coated anodes. The control circuit is adapted to control the showing of symbols when similar anodes in all the display devices are connected to a common supply conductor. During the showing of any symbol, the electronemitting cathode is temporarily disconnected from its power supply by a series transistor. This type of control circuit is particularly adapted to the showing of digital information provided by a computer circuit. The circuit does not employ resistors which produce excessive heat and power consumption.

公开(公告)号：US3571666A

公开(公告)日：1971-03-23

申请号：US3571666D

申请日：1968-04-12

Applicant: WAGNER ELECTRIC CORP

Inventor： MCGUIRK FRANCIS A JR

IPC: G08B13/26 ,  H01H47/22

CPC classification number: G08B13/26

Abstract: The variations in capacitance to ground of an antenna due to proximity or remoteness of a person or object causes variations in the output of an oscillator. In one embodiment, when antenna capacitance either increases or decreases with respect to a predetermined level, the oscillator output decreases or increases (respectively) and thereby causes switching circuitry to energize or deenergize (respectively) both of two relays, thus causing energization of a load. At the normal antenna capacitance, one relay is energized and the other is deenergized, and the load is deenergized. In a second embodiment, the same load-controlling functions are achieved with a circuit employing a single relay.