I'm trying to interface an MCU to the inputs of a laser scanner head controller. (I have no problem with understanding its outputs)
Here's what the controller's manual says about its circuitry.
Anyway, I tried to simulate what the recommendation is for its PNP input using a 2N3906 transistor, and I'm getting very strange readings at its output.
I don't understand, isn't the "out" node in my sim supposed to reach 0V when the transistor is inactive?
Here's what the controller's manual says about its circuitry.
Anyway, I tried to simulate what the recommendation is for its PNP input using a 2N3906 transistor, and I'm getting very strange readings at its output.
I don't understand, isn't the "out" node in my sim supposed to reach 0V when the transistor is inactive?
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