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Thank You Brain and Bus master.
Brain,
I forgot to mention that I have connected a diode parallel to the relay with reverse bias towards +12V.
I agree with you this is because of some noise. I have connected 100nF and 10 µF capacitor to the supply and ground of the IC. Still I am Facing...
Hi All,
I am triggering 3 relays one after other using microcontroller 89v51rd2. My application is like this
1. When I give input(5V) to microcontroller input1 then output1 becomes ON
2. Now I will get input (5V) to microcontroller input2 then output2 becomes ON
3. Now I will...
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