opto-isolatorproteussimulation
I am making a circuit that uses the H11AA1 (http://www.vishay.com/docs/83608/h11aa1.pdf). This is a bidirectional opto-isolator.
I want to simulate it in Proteus, but in the libraries there are only uni-directional opto-isolators. ¿How can I simulate this device, or something similar?
I am suppose to have something like this:
Thanks in advance
I have used a Photovoltaic relay for this in an Arduino driven application, the IR PVT312.
It is designed to work as a substitute for a Relay, and is rated to switch up to 250V at 190mA. It is suitable for AC and DC switching.
As you can see from the diagrams below, it's an opto-isolated MOSFET switch.
You should hew to the datasheet recommended minimum voltage of 4.5VDC if you want reliable operation, however it does not appear that is the proximate issue.
Your measurement of +5V at 2 and 0V at 3 indicates you have a wiring problem or you've damaged the LED (perhaps by accidentally connecting it without a resistor for even an instant). The LED forward voltage should be around 1.3-1.6V- and that is a good indication that it is actually emitting light. If it is much less or much more, that indicates a short somewhere (perhaps internally) or an open (again, perhaps internally). In your case it appears to be open.
As an aside, your 200 ohm resistor is a bit on the low side- I suggest keeping the nominal current more like 10mA. That is not what damaged the LED (if that's the problem) just better for long-term reliability.
Best Answer
how about rectifying that signal and then use a unirectional opto-isolator