stepper motor driver help

Thread Starter

stylediva

Joined Dec 6, 2011
72
L7805 in my circuit is not working properly..it gives 2v at output..but when i check that seperately then it gives 5v..L297 is driven by L7805..and in L298 , vdd=5v ,vs=12v..
 

SgtWookie

Joined Jul 17, 2007
22,230
Did you use the recommended capacitors on the input (0.33uF) and output (0.1uF) of the L7805? If not, it can oscillate, and you will see somewhere around 2v out.
 
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