jrz126
Active Member
As many of you know, I'm putting 62 leds in the headliner of my car.
I got to test it out yesterday, and I just discovered that if I use the car battery to power it, whenever I connect my audio source (1000W class D amp) to my circuit, the subs go nuts and start making all sorts of noise.
It's because my VU meter circuit (lm3915) shares the same power source as the amp.
I didnt come accross this problem before because I was using a 120VAC source with 5VDC output.
I'm not positive on the max. current draw. I'd say no more than 2 amps when the circuit is finally done. So is there a way to take care of this problem?
I was thinking that I could use another rechargable battery (I have a battery from my cordless drill in there now). I'd wire up a circuit so that the 2nd battery would only charge when I have the leds shut off. Then when I turn them on, it disconnects the 2nd battery from the regular car power and it works just fine.
Lemme know what you think.
I got to test it out yesterday, and I just discovered that if I use the car battery to power it, whenever I connect my audio source (1000W class D amp) to my circuit, the subs go nuts and start making all sorts of noise.
It's because my VU meter circuit (lm3915) shares the same power source as the amp.
I didnt come accross this problem before because I was using a 120VAC source with 5VDC output.
I'm not positive on the max. current draw. I'd say no more than 2 amps when the circuit is finally done. So is there a way to take care of this problem?
I was thinking that I could use another rechargable battery (I have a battery from my cordless drill in there now). I'd wire up a circuit so that the 2nd battery would only charge when I have the leds shut off. Then when I turn them on, it disconnects the 2nd battery from the regular car power and it works just fine.
Lemme know what you think.