No. It is better to place the diode in the same polarity but across the relay to shunt the back emf when the relay is disabled by the opto. If you notice you are just paralleling the internal diode on the opto.
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Re: Optocoupler question based on Fairchild H11G1
No. It is better to place the diode in the same polarity but across the relay to shunt the back emf when the relay is disabled by the opto. If you notice you are just paralleling the internal diode on the opto.
Dave Purola,
N8NTA
EN82fn
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