Agreed. I would never drive an inductive load directly with an
opto-isolator. Fortunately, there are plenty of cheap FETs with
built-in protection now that can be used.
On 10/8/2014 9:36 PM, isaac goldman wrote:
I dont trust opto-isolators to handle the spike from an inductive load
like a solenoid. Replacing the e-trigger with one could work, but
directly energising the solenoid off it doesnt appeal to me.
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