customaudioman

What the best power supply to a 7'' tsv monitor by xenarc. I get lines in my screen from using the cars dirty power from the head unit. Also I would like to power my external dvd/cd drive which is 5v. Are there any which would power them both? monitor is 12v@ around 2amps and the dvd/cd drive is 5v@2amps.

Punky

take it from the opus, splice the wires and run it to the lcd. check the faq section.
also be very careful and check the polarity, otherwise u'll fry ur LCD, like what i did.

customaudioman

I want a seperate ps, I used my opus 150 before, when I cranked the engine it would reboot. Since I hooked it up to the car power, no more rebooting at the gas station when I stopped to get gas. what about the p.o.l power supply? is there any a little more powerful?

rgarjr

For the xternal DVD u could use carnetix p5v regulator.

muldrick

Find a different source (from the car) for the monitor. IE: straight to the battery.
5V: I got one of those little regulators from Radio Shack and ran it inline using the cars' 12Volts. (I forget what number it is, ask them at the shack)

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CombatCQB

Another member here named Shchua drew a regulator schematic to power most 12V LCDs. It'll take 7-14V and output an adjustable 12V. I built the circuit for my LCD and have never had a problem with it. I adjust mine for 12.8V output. The parts together is less than $10 but it does take effort on your part to build. But it is worth the clean power not to mention it survives cranks. If you're interested, I designed a PCB for it and have a few extra.

As for the 5V, a simple linear regulator from radio shack would generate a tremendous amount of heat going from ~14V to 5V at 2A. Here I'd recommend the carnetix too since it is a switching regulator that's more efficient. A little costly, but you save the work of building one.

One source of regulators I've always tried to exploit is surplus or dollar store. All those cheap cellphone car chargers for phones that on one wants anymore. Most of them are simple 5-7V switching regulators rated between 500mA to 900mA. I doubt you'll find one that handles 2A, but it might be cheap to modify one to do so.