Tagged Questions
5
votes
2answers
733 views
Transistors: why are resistors needed?
I have a solid state relay which needs at least 3V to activate, and I need to toggle with a 2.3V output from a microcontroller. I've also got a 6V 1A power supply which I can use to power the relay.
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0
votes
2answers
1k views
120v variable resistor controlled by 5v?
I want to do some work with automating christmas lights later this year and my friend and I think relays may be the way to go. After a little more thought, I think it would be cooler if the lights ...
2
votes
1answer
104 views
Resistor selection
I need help on what resistor (if any) I need for this set up.
12v car power as signal power to DPDT relay switch. What do I need on the deadend side of relay signal?