Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Hi there. I have two panel mount 24v relays which are driven by 24v switch panel. Both relays when energised turn on a dc-dc converter 24 down to 12v then the loads connected to each relay are 12v loads. Problem I have is when both switches are turned on then one back off the relay stays...
Hi, I'm new here, I've just started a project that has me building an electrical circuit for the first time and I don't really know what I'm doing! I'm hoping someone can answer a quick question.
I have a 12v electric motor (has two power levels, at 9A and 20A and it was suggested to go with a...
PROBLEM:
24 SMD COB LED has too much illumination drop off over 3 hours. Currently powered by four 3V button batteries.
PREFERRED SOLUTION:
Get this battery powered LED to perform more consistently over a few hours.
THE STORY:
I’m working on a little project at home for a custom...
One Bit Switcher
I offer my own version of the circuit of the switch 12v. led-lighting for the kitchen based on the dual trigger of the hc74 chip.
Created with EasyEDA.
By my post you will gather I have very little electronics experience. I am trying find a specific black box so please accept my apologies for the inaccurate descriptions/terminology.
I own a Can-Am Spyder made by a Canadian company to which I have fitted their tow wiring harness kit to supply...
I have been asked to play a role in the design of a 12V backup battery pack that would be used to backup a vehicle security system and siren in exclusively AUTOMOTIVE applications. I have general electronics experience but no experience with the design of a battery backup system, and the...
Hi guys,
It's been a while. Before I actually buy a UPS backup supply, I need some advice and potentially save more than 50 dollars.
I found one from a friend (APC ES 500). Naturally, it was already dead.
I've hooked it up to the mains and no indicator LED or anything turned on. Dead as a...
Hello,
I was hoping some can help me figure if i can use SRD-12VDC-SL-C, to turn may parking light into blinkers.
Here is the issue;
I purchased aftermarket blinkers for my motorcycle, these only light up while blinkers are turn on, making you less visible during regular operation.
Hence...
Hi there,
First off a bit of background, this is part of a university project where I want to control the flow of water from a reservoir into 12 small tanks (the flow going into each of the 12 tanks needs to be the same, roughly 30ml/min). My way of achieving this is to use 12 peristaltic...
I have been looking into back-flow protection for batteries and chargers and invented this wonderful circuit, and as usual when you search you find that it has all been done before. Just so in this case and the circuit in Figure #5 of the application report linked below, not only uses a similar...
Basically to power various lights and e4c im setting up something similar to a 12v outlet around my workbench, I also want to power a 24v fridge. Problem is that the 6-8A Spike when it first turns on is too much even though the psu is 15A and I've gotten it to 13A ok. I'll have a battery hooked...
OK so I'm after a bit of wisdom here, I've built a portable power pack for camping, fishing, festivals etc and am struggling to understand the ah and how many charges I should be getting out of it etc so here's a couple of questions I was hoping you guys could help with . .
So its all wired up...
this isn't exactly an "automotive" etc. application, but it will be a 12 volt system, just lacking an alternator. there are a few issues i need to iron out though. it was originally supposed to be a 36v system, but that created a lot of problems eg. separate batteries for an EQ/crossover or...
Likely a silly question for the rest of you, but something I need to know and don't know now. Working with a 12 volt automotive system, if you were to tie into EACH of the two brake light power supplies (right side and left side - perhaps about 6 inches back from the actual brake light...
Hello,
I searched around the forum, and didn't find anything that would help me with a project that I have going on.
I purchased some LED strips that I am going to install on my car. The issue is that they are dual color, white and amber. The white is a running light, and then the amber is the...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
