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How Can I Drop DC Voltage?
markrvp:
I'm currently hacking 3 Jakks handheld games into a cabinet (see the project HERE).
The AC to DC converters I have are outputting 7.2 volts with a load applied. I assume that I can put something (resistor, transistor, diode - don't laugh I'm not an electrical engineer) in line that will drop the voltage to 6v.
Can anybody tell me specifically what I need to drop DC voltage 1 volt and how to wire it in?
fl0yd:
A resistor will do it.
One easy way would be to use a potentiometer. You could hook it up to a volt meter and turn the knob until you were at your desired voltage.
Dire Radiant:
The even easier way would be just to get a selectable voltage power supply from Radio Shack.
fl0yd:
--- Quote from: Dire Radiant on May 27, 2005, 01:20:02 pm ---The even easier way would be just to get a selectable voltage power supply from Radio Shack.
--- End quote ---
Mark had stated that he's using a converter in a different post, but getting different voltages than he expected.
Mark's quote:
--- Quote ---I'm using 3 different power supplies.
--- End quote ---
markrvp:
--- Quote from: Dire Radiant on May 27, 2005, 01:20:02 pm ---The even easier way would be just to get a selectable voltage power supply from Radio Shack.
--- End quote ---
Fl0yd is right. I can't believe how innacurate these things are. I was blown away when I set in on 6v and it ouput 9 volts. I went to Radioshack and bought a dedicated 6v unit. I had the clerk meter it and it came out 7.8 volts. Even with a load it's still hot.
Luckily it hasn't fried my handhelds, but the video signal seems a little hot. I wouldn't think that would matter, but it apparently does.
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