Recent content by gajopo

There is my problem. Single phase soft starts require specific motors with special windings, centrifugal switches, capacitors and on... If I can find a way to make a 120vac adjustable frequency low wattage power supply I can supply on its hysteresis(off) state to slow the pump motor just...

Right now I am using 2 .1 to 99 second in-line timers and 2 relays. The pumps are on opposite sides of the tank set at 12 seconds, simulating the ebb and flow found in natural reefs.

The application may seem trivial, but I need to control an aquarium powerhead (pump). I'm an elevator adjuster by trade and have no problem understanding schematics and scouring datasheets but am by no means an electrical engineer. My issue simplified, controllable powerheads cost 8-10X the...