Pro/Forums - View Single Post - Damn it. Voltage on 13.8v PSU too high...

ricecrispi · 03-07-2006, 03:58 PM

With the shipping and $12 for PSU I dont that CD is worth that much....

He meant not to place the resistor inline in a series circuit with the pumps or the fan. With the resistor in inline, the current is the same for both the resistor and pumps. That is why you got a big drop in current.

Place it in parallel and the current through the pump and resistor varies based on their resistance but voltage is the same for both. All you need to do is build another circuit to the pump like how you did exactly with the resistor.

03-07-2006, 03:58 PM	#19
ricecrispi Cooling Savant Join Date: Jul 2005 Location: california Posts: 429	Re: Damn it. Voltage on 13.8v PSU too high... With the shipping and $12 for PSU I dont that CD is worth that much.... He meant not to place the resistor inline in a series circuit with the pumps or the fan. With the resistor in inline, the current is the same for both the resistor and pumps. That is why you got a big drop in current. Place it in parallel and the current through the pump and resistor varies based on their resistance but voltage is the same for both. All you need to do is build another circuit to the pump like how you did exactly with the resistor.