Hi.
I have an AC->DC "big plug" power module that's supposed to give 12V DC, but when I put the voltmeter on it it gave a whopping ~17.5V! What is going on there? I wanted to use this to power some LEDs (infrared), and I want 12V, not a whopping 17.5. What should I do?
It is unregulated. Check the voltage on load.
If it's a 0.5A unit, load with 24 ohm 7W resistor and check the voltage.
It may have a minimum load requirement. Try putting a 680 ohm 1/2 watt resistor across it, and then measure the voltage.
Sylvia.
I don't have that, but I had some other things I tried and it does seem to cause the voltage to go down, but still over 12. The lowest I could get was like 14V.
How should it be "regulated", as I need 12V?
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