1. B

    Old lamp switch repair and identification

    Hello, I’m brand new to this so please forgive me. With plenty of time now on my hands I have decided to fix a lamp that’s been sitting around. The switch is broken so I bought a new one that illuminated because... why not. It works but is about two millimetres too long and probably a mm...
  2. maitrey

    Design Interlock for two operations (Manual Switch and Automatic Switch)

    Hello, I am in the process of designing an interlock for two operations. 1. Operated by Manual Switch 2. Remotely through an Automatic Switch (Can't be controlled Manually) If user turns manual switch then operation should start. (In this case, if someone activates automatic switch it should...
  3. Lambo Av

    2 Generators connected to bus. Maximum, minimum voltage across light, peak voltage, pulsation

    2 generators are connected to the bus below. Given V1 = 300V, 50Hz V2 = 400V, 60Hz When the switch is opened, calculate i) the maximum and minimum voltage across both light 1 and 2. ii) peak voltage across both lights iii) maximum number of light pulsation How do I solve the issue above? Any...
  4. Andersons

    Engine start switch as on/off switch?

    Hello, I need a on/off switch that lights up when it’s ON and is hard to switch, so it won’t accidently turn ON. What kind of switch should I use for this purpose? Can I use a enginge start switch? The current I’ll use is from a 9 volt battery (PP3 alkaline and CRV9 lithium)
  5. Theo_KVA

    Electrical switch for a non-chemical battery - How to do it?

    Hi everyone, I’m seeking guidance. I have a tricky situation which I don’t really know how to get out of. I want to design a system which would consume the least amount of power possible. The idea is to have an ESP8266 do a simple task every minute (updating a e-paper display) and sleep the...
  6. G

    Automatic Switch Saklar from adaptor dc to battery

    First of all, I'm a noob but i want to learn electronics with all of you guys. I want to make a project to make an automatic switch from dc adaptor (that converting from ac supply to dc) to battery for turning on dc LED light. The LED light must keep turning on. In a condition: 1. When the...
  7. Enrique Garcia Mainieri

    Low Voltage Signal T/R switch

    Hello Forum, I am designing an Ultrasonic Reciever and Transmitter circuit, in which the Reciever and Transmitter Transducers are connected with the same cables. That means that the Excitation signal and the Received signal will be transported by the same medium. The Excitation signal is a...