Solar tracker

287

03:49:04

This is another  solution to the motor control.  The bottom potentiometer is used to set the center point, the top would be the action one. This might be used for many things where you want to control the direction of a motor with respect to another value. 

I have bread boarded this and it works. The two resistors on either side of the top pot were replaced with CDS cells. When they receive equal light the circuit is balanced, when one is shaded the circuit is unbalanced and polarity is shifted either positive our reversed.  On my solar tracker I found it helped to put the CDS cells close together with a divider between them. 

You will not get positive and negative, rather positive and less positive.

published 11 years ago

cnsealpk

11 years ago

hamilton1300

11 years ago

made a few changes to the top voltage divider to make it less touchy. also it gives it a more proportional responce.

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