How to block current from going back

Thread Starter

alexxxx

Joined Feb 16, 2010
3
Hi, I have a old Golf which has daytime running lights that run at 3.5volts, I want to run this cheap HID kit I purchased from eBay for $50 but it doesn't have enough power to power up the relay, so I added a 4700uf Capacitor, and it worked, but the car gives a annoying bulb out warning and the capacitor is giving power back to the car which could cause problems, so I wanted to only allow the capacitor to give power to the relay and block it from going back to the 3.5v source, and also at the same time I wanted to add a resistor to take the load from the car so the bulb warning light doesn't drive me crazy, I drew up an idea so you guys can see it.

Is there anything I can do to stop the current? Or is this hopless?
 
Last edited:

retched

Joined Dec 5, 2009
5,207
What is the specs on the lamps? Do you have a data sheet that shows current draw? If it is less then 3 amps, then they will work.
 
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