Connection of a diode
Dear all,
What happens if I connected up the diode as seen in this picture attached?
As far as I am concerned, I have seen the transistor melting up...
But what exactly happens?
Kindly advise....
What happens if I connected up the diode as seen in this picture attached?
As far as I am concerned, I have seen the transistor melting up...
But what exactly happens?
Kindly advise....
Comments
Your question about the backwards diode has many possible answers depending on the specific values used in the circuit and the characteristics of the diode, the transistor and the resistance of the relay coil. In many cases, either the transistor or the diode will be damaged or destroyed. It's possible to choose components so a 9V battery used as the power source would be exhausted, but no other damage would occur.
A proper flyback diode (installed in the opposite direction than shown) won't allow battery current to flow through. Its purpose is to absorb high-voltage transient spikes when the solenoid is turned off. Those can damage the stamp.
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·"If you build it, they will come."
Thanks alot for your explanation!