Pricing and Availability on millions of electronic components from Digi-Key Electronics. However there are many things to take care of, especially the triac ratings and thermal design of the entire setup. 4N35 Optoisolator Transistor with Base Output 3550Vrms 1 Channel 6-DIP from Lite-On Inc. No, R and C values are not the only difference when you are controlling 10 vs 50 amps. I read your comments on the other answer. A normal LED opto-isolator will invert the logic of a signal. In your case, whole power is being converted to heat. Great for use in noisy circuits where signal lines require electrical isolation. Your case is more severe because LEDs convert some power to light. Here Ill introduce programmable logic controller (PLC) input circuits using opto-couplers. This video shows a guy making heat sinks for high wattage LEDs. The main purpose of an optocoupler interface is to completely isolate the input circuit from the output circuit, which. This is a lot of power and you will need beefy heat-sinks with active cooling to get rid of this heat. 6) Place the optocoupler IC in the female headers. 5) Connect the 4V DC battery with the circuit. 4) Solder the +ve terminal of the LED with output female header & the -ve terminal with the ground of the circuit. Designed for ease of use, the OPTO-150 delivers circuit isolation in a space-saving, encapsulated package. ![]() At 50 amps, you will be dissipating a minimum of 1.3x50 watts = 65 watts. 3) Solder the Pushbutton in series with the female headers. HVM Technologys OPTO-150 is a miniature, 15 kV rated high-voltage optocoupler which integrates low-voltage LED drivers with high-voltage photo-detector diodes. Triacs will have a voltage drop across them when conducting. Assuming you are right, you will run into other problems than the circuit:ġ) Supply: I could find only 4 triacs which meet the current requirements:Ģ) Heating: 50 A is a lot of current. I feel you are misinterpreting the situation at hand. Logic output optoisolators use light to transmit information across an electrical insulation barrier, usually for safety or functional reasons.
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