hi, guys and girls i need some help with a treadmill motor control board i have ,,well i have 4 of these that i salvaged from junkyard with the motors. i was going to throw them ( the boards) into recycling bin then i decided to test them and to my surprise 3 of them are good.. i have a very very very limited knowledge of electronics ( machinist by trade) so here's the problem that i need solution for...my goal is to use these boards to control just the speed of the motors and use only the high voltage (180v) part of the circuit without using all the top panels and gear a treadmill uses..i've searched on net and only way people are using these boards is with a pwm device..
i've included some pics of one of these boards with descriptions..and here are a few questions...
1) in a normal treadmill setup the PWM signal from the top panel of the treadmill goes to the G30N60 mosfet through a lot of other resistors and IC's etc . can a small circuit be made to send and control that signal straight to the G30N60??
2)one very crafty gentleman made a 50ms period variable duty cycle Square wave PWM Driver to control the speed on his (MC-2100 ) board but my board's totally different from his but can it still be used with some mods on to my board?? ( i've attached the drawing below)
i just want to get rid of all the additional treadmill functions and only use just necessary components on these board if possible..
pls help..
cheers
i've included some pics of one of these boards with descriptions..and here are a few questions...
1) in a normal treadmill setup the PWM signal from the top panel of the treadmill goes to the G30N60 mosfet through a lot of other resistors and IC's etc . can a small circuit be made to send and control that signal straight to the G30N60??
2)one very crafty gentleman made a 50ms period variable duty cycle Square wave PWM Driver to control the speed on his (MC-2100 ) board but my board's totally different from his but can it still be used with some mods on to my board?? ( i've attached the drawing below)
i just want to get rid of all the additional treadmill functions and only use just necessary components on these board if possible..
pls help..
cheers