I have a 12V 1.6A DC power supply that I scavenged from some old piece of computer hardware. It is center positive (verified through my voltmeter). I tested the supply without load (nothing plugged in) and it hung around 12.2V, so I think it is regulated (doesn't go to high voltage when not under l…

Making sure I don't fry with a 12V power supply

system January 19, 2010, 7:20pm 8

Do your blowers have a PWM input lead or are you going to PWM the blower's power (+12V) lead?

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