香农在1938年发表的伟大论文A Symbolic Analysis of Relay and Switching Circuits(《对继电器和开关电路中的符号分析》)将开关、继电器、二进制、布尔代数联系起来。 https://www.cs.virginia.edu/~evans/greatwor
Shannon, A Symbolic Analysis of Relay and Switching Circuits The name of Claude Elwood Shannon is not a completely strange to Communication researchers. However, part of its importance to the history of communication... C Baylis - 《Journal of Symbolic Logic》 被引量: 0发表: 1939年 ...
利用铁壳开关或胶盖瓷底刀开关的控制线路如图1所示。在一般工厂中使用的三相电风扇及砂轮机等设备常采用这种控制线路。图中QS-FU表示铁壳开关(或胶盖瓷底刀开关)。当合上铁壳开关,电动机就能转动,从而带动生产机械旋转。拉闸后,熔断器就脱离电源,以保证安全。 2采用转换开关的控制 转换开关控制线路如图2所示。图中...
电动机起动后,松开启动按钮,接触器通过自身常开辅助触头而使线圈保持得电的作用称为自锁。实现自锁主要是将接触器触点并联于按钮,达到启动自锁功能。简单的说就是常开触点是并联在启动按钮上的,启动按钮是常开,当按下启动按钮后,电源通过停止按钮,启动按钮加在接触器线圈上,接触器吸合,它的常开点接通了,此时松开启动...
The invention relates to the switching circuits of electrical charges. < / p & gt; & lt; p & gt; a circuit intended to connect selectively a load 12 has a source of alternating electrical energy, v, in particular comprises a contact of the main switch k1, connected in parallel on a ...
Add new Web site: University of Virginia - School of Engineering and Applied Science - A Symbolic Analysis of Relay and Switching Circuits. Gloria Lotha Dec 03, 2024 Add new Web site: Commander Naval Sea Systems Command - Relays. Gloria Lotha ...
A symbolic analysis of relay and switching circuits of problem is not unique and methods of finding those particular circuits requiring the least number of relay contacts and switch blades will be studied. ... CE Shannon 被引量: 1117发表: 1938年 Automatic Test Technology Study and Implementation...
DPDT relays have two sets of contacts, each set capable of controlling two separate circuits. It provides a double-throw functionality for each of the two poles. Notes of Caution Always check the voltage and current rating of the relay switch. Some are designed for switching only low voltages...
Switching circuitsThyratronsVoltageThe Trinistor switch is a new semiconductor device which can be used to provide control of large amounts of load power... PF Pittman - 《Nuclear Science Ire Transactions on》 被引量: 0发表: 1959年 Design & Implementation of Sine Wave Single Phase Inverter fo...
The invention relates to electrical load switching circuits. A circuit for selectively connecting a load 12 to an alternating electrical energy source V comprises in particular a main relaycontact K 1 IN PARALLEL ON A DIODE D1, A PILOT CONTACT K2 AND A CONTROL CIRCUIT 14. THIS CIRCUIT DEFINES...