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Control voltage of pump

post #1 of 4
Thread Starter 
I have a DD-CPX1 12V pump that I would like to control the voltage of. (For a project I am currently working on)

The operating voltage of the pump is from 8V to 13V. I know I can connect something like a potentiometer, but any idea what resistance would be best.
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Heavy HAF
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post #2 of 4
Resistance doesn't matter, it's amperage. Just make sure to buy a 12v rheostat that can handle the amperage the pump draws.
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The Butthurt Box
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post #3 of 4
he's right
most pc pumps are just 5-18w a few get a little higher

formula for current is v/p=i

v=voltage
p=power (wattage)
i-amperage (current)
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post #4 of 4
Thread Starter 
Thanks for the replies. I knew current was the biggest factor, so thats why I wanted to confirm here.

The reason why I was asking about resistance is because if the resistance is too large, wouldnt it force me to actually move the rheostat just barely to adjust from 8-13 V?

I am hoping to get a rheostat that would allow me to turn quite a bit to adjust the voltage.
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Heavy HAF
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New Build
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CPUMotherboardGraphicsRAM
Intel i7 920  MSI Big bang Xpower X58 EVGA GTX 570 G-Skill Razer Ripjaw X 4GB x 4 
Hard DriveOptical DriveCoolingCooling
1 TB WD Black x 3 SAMSUNG 22X DVD Burner Venomous x - CPU Cooler 120 mm Fans x 6 
OSMonitorKeyboardPower
Windows 7 Ultimate 24" Sceptre x 2 Adesso Mechanical Keyboard Thermaltake Toughpower 1200W 
Case
Coolermaster HAF 932 
CPUMotherboardGraphicsRAM
i7 4770k ASUS Z87 Deluxe GTX 570 (For Now) G-Skill 16GB  
Hard DriveCoolingOSKeyboard
2x256 Vertex 4 Raid 0 Corsair H100i Windows 8.1 Sceptre 24 
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