Questions about the insides of this optocoupler (TLP250) (lemmy.world)

submitted 6 months ago by [email protected] to c/[email protected]

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I haven't really been able to find much on this. I recognize the totem-pole and what that's for. Would love help understanding:

What's the triangle?
What's the rectangle immediately after?
Why are there two outputs instead of one? A lecture I watched claimed this is common.

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[-] [email protected] 4 points 6 months ago

The triangle is an opamp, as for the other two questions... Don't know, biasing resistor bridge? Not sure why it would have that though

[-] [email protected] 4 points 6 months ago

It cannot be just a bridge, or else its output woukd stay constant regardless of input. There are other mandatory resistors missing in the diagram though.

this post was submitted on 16 Jan 2025

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