Hello People.
I have a question here, but first a little background story. I have an SMD station that lost its magic smoke a while back. So I made a little project to fix it. I am basically redoing all the electronics inside.
I have basically complete the interface for it (The Temperature display and Pot readings) I am now doing the power control circuit for the Air Pump and Element Control...
So here is the question. On the old circuit there was a Bridge Rectifier on the output of the triac going to the pump. After a lot of searching and asking my Professors at the university I found out that this Rectifier acts as voltage divider for the inductive load.
Below is the schematic.
![](https://i.stack.imgur.com/E4yMk.gif)
Now here is the new circuit ill be using to control the Pump.
![](https://cdn.instructables.com/F8T/W408/H3CS2V16/F8TW408H3CS2V16.MEDIUM.jpg)
I am gonna use the Microcontroller to control the speed of the motor.
Now. How do i connect the bridge rectifier to the Optocoupled circuit ?
I am thinking of something like this.
![](https://image.ibb.co/eaWfJG/Motor_control.png)
Any suggestions would be appreciated
![ThumbsUp :-+](https://www.eevblog.com/forum/Smileys/default/icon_smile_thumbsup.gif)
Byron