"isolation" (隔离) means cutting off an electrical installation, a circuit or an item of electrical equipment from every source of electricity; "linked circuit breaker"(连动断路器), "linked isolator"(连动隔离器) or "linked switch" (连动开关掣) means a circuit breaker, isolator or switch th...
fwiw - I think you may be using an opto-isolator as a switch, but not really isolated. I think a genuine isolation circuit would use separate power supplies and not share the resistors. Also as a reminder, this won't be a debouncer....
When a switch 30 is in the position shown a lighting circuit 14 is connected directly to an output of a main isolator switch 10, whereas with the switch 30 in its other position the circuit 14 is under the control of a contact set 24 of an electrically operated programmable timer 19. A...
Arelayis an electronically generated switch. The internal mechanical shift is operated when the relay normally uses the electromagnet (coil). The power is turned ON for a circuit when relay points open, and the electromagnet is activated. How does a relay work? The relay has contacts in which...
We claim: 1. An electrical wiring system in accordance with claim 7, in which each switch comprises a spring projected spindle having a knob and a contact bar for engagement at each end with fixed contacts, the bar being disposed in a diametrical opening of the spindle and a spring engagi...
Generally, today’s instruments are able to maintain 20 mA at a circuit resistance of 1000 ohms. Since a typical instrument has no more than 250 ohms of input resistance, it is possible to power several instruments from a single current source without needing an isolator. ...
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Difference between PNP and NPN sensors PNP sensors are sometimes called “sourcing sensors” because they source positive power to the output. NPN sensors are sometime called “sinking sensors” because they sink ground to the output. The term “load” identifies the device the sensor powers. The...
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