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Attached is a diagram given on a data sheet for a AD6C112 optocoupler. I have been studying up on optocouplers because many of my projects need a relay, and I, more and more, am moving toward miniature projects, and modifying electric/electronic devices by adding additional features to them.
I...
Hi, I have an IKEA wireless led power supply which outputs 24V DC / 54 mA current /10W max (model: ICPSHC24)
Challenge: I want to turn on a 220AC appliance when the led is on.
Unfortunately, the output current is too low to trigger a relay such as HF152FD, which would be the simplest and...
Hello everyone.
I came across while reading the opto-isolator technique used for electric isolation in embedded systems/ Integrated Circuits design that " Opto-isolator is not recommended for electric isolation in power applications IC's mainly due to its dV/dt sensitivity". So I would like to...
Hello,
I am working on a DIY project to interface a lot of signals to a NMEA2000 bus to be able to controle an older analog engine and other sensors with a new multi function display.
To do so I am using Arduino / Teensy microcontroller together with a NMEA2K library. I started to design the...
I'm working with a system that requires me to read 120VAC inputs on a pivot irrigation system. The wires travel 1/4 of a mile. Occasionally on the line I am reading, the voltage is 65VAC instead of 120VAC. I believe this is an induced voltage because of the length of the wires. I only want to...
Hi,
Some opto-couplers, like 4N25, have a terminal for the base of the output device, what are the advantages of having this terminal? Looking for an answer, I ran into this. I can somehow understand that the base connection can increase the speed but I don't understand how this terminal can be...
Good Afternoon
I am busy building a static VAR compensator for a project and i need to use TRIACS to switch in my capacitor banks. The system is 3 phase 400 VAC and consists of 3 motors with varying loads. There is a system that determines the power factor and switches in the capacitors. Today...
Good Day,
I am really struggling to get a "simple" Triac circuit to work. I started by consulting the typical application from the optocoupler MOC3043 datasheet:
I chose the MOC3043M as is was suggested for 240Vac operation and had the lowest "turn-on" current (5ma).
I've constructed the...
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