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Thank you sir….
I dont know how to use comparator module…
but I have managed all the activities using Timer interrupts.December 19, 2015 at 11:11 am in reply to: Unexpected behaviour of 12V DC Motor with PIC Microcontroller #11928
I connected power supply like that only.Ground was common. But that was not the problem.I connected back the supply as earlier in parallel.
As you said, problem was that ripples.When I connected a 1000uf(25V) capacitor in parallel with Vs Pin(12V) and the Ground pin of L293D, the problem was solved.
Thanks for your support.
GeorgeDecember 18, 2015 at 12:20 pm in reply to: Unexpected behaviour of 12V DC Motor with PIC Microcontroller #11926
checked with seperate power supply also……but no result.December 18, 2015 at 11:00 am in reply to: Unexpected behaviour of 12V DC Motor with PIC Microcontroller #11925
Thank you for your response sir…
As you said,I am using a 12V common power supply.By using a 7805 regulator,it is cut down to 5V and is supplied to PIC board section and IC supply voltage .
For 12V pin (Vs) in L293D,It is taken in parallel from 12V dc power in the board and there is no connection with PIC section.then how this will happen??
Also Is capacitances necessary??