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Yes, I have put Snubber across the coil. R = 100 Ohms and C = 47nF
Contactor is 3Phase and coil is 230VAC , and the motor starting current is 1450A, which is given through contactor..
Yes, tracks are ok. There is enough gap between tracks.
I added 0.1uF disc capacitors nearer to all Vdd pins of uC, Is there necessary to put some value of electrolytic capacitor nearer to the controller..
Thanks..
Hi, I am controlling 6A coil contactor, using a 12V relay by the micro controller.
Circuit is working fine even there are noises, but when i connect the ground of CRO to the Circuit ground, when the contactor is energized, the controller resets.
Is there any solution for this..
Thanks eric, but i used heat sink, with heat sink it reaches 106 degree in 5 mins ,
and one thing, both BTA25 and BTA41 acts as same, i mean, gets 106 degree.
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