I am using a 12 V power supply to run a series of motors in Parallel expecting them to pull up to 25 ampere. The motors are running too fast at 12 V so we need to drop it down to 9 or 10 V, preferably making it adjustable..
I am familiar with voltage dividers and voltage reg. chips, and zener diodes but never worked at such high Ampere situations, we are even looking at lamp dimmers(?)
Can anyone suggest the most efficient and simple means of achieving this without excessive cost? The system does not need of dynamic control, I'm fishing for a hi amp voltage-regulator/ zener-diode type solution, if it exists!