crosslakeguy
Member
I need a two speed (both high and low speed adjustable through trim pot) oscillator. to drive stepper motor pulses. right now I am using a 555 ic the low speed I have a pot where one resistor is and a relay to bring the other resistor from 1k resistor to 0 k for high speed. my motor is running anywhere from 30rpm to 300 rpm its a standard i think 1.8 degree step so 200x whatever rpm x60 for pps.
so running at 30-100rpm for low speed then around 100-350rpm for high speed
adjustable low and high, and switchable between high and low.
so running at 30-100rpm for low speed then around 100-350rpm for high speed
adjustable low and high, and switchable between high and low.