Aug 4, 2023 · I am looking for a way to make a "light dimmer" (actually controlling a heating coil) using a triac, where I can control the duty cycle of the AC based on a DC voltage. In searching …

Jul 26, 2022 · Triac failures are usually caused by either excess current or excess voltage, either to the gate or through the device, and if they happen at the moment of turn on application it is …

Jan 18, 2022 · Hello, I made this circuit so I can control a 24VAC sprinkler solenoid valve (rain bird ones from home depot), using a microcontroller. I also want to mention that I am new to …

Oct 18, 2018 · The triac is triggered by current into the gate via the optocoupler. Once triggering has occurred, the voltage between the main terminals of the triac drops to something in the 1 …

Dec 8, 2017 · I have searched online in attempt to see how I can setup my spice model to run a simulation on a triac. But I keep getting this error: "Unknown subcircuit called in: xu1 n003 …

Nov 8, 2020 · anybody know where I can get a good triac model for use in ltspice simulation? been looking like forever. got a diac model that works.

Oct 20, 2016 · The Triac needs a maximum of 10mA gate current, the supply is 230V, so with R1at 10K, R2+3 needs to drop 130V, which gives 13K total at 1.5W.. simple ohms law

Jan 1, 2023 · A triac is current triggered. The gate-MT1 junction looks like two diodes in inverse parallel, so the gate voltage will always be <1V. What are you trying to switch it with? Could …

Jul 5, 2018 · I need to control a 120vac 1200w heater using the PWM signal from an Aduino over the full range of 0% to 100% PWM. I suspect this means a heavy duty triac but I'm not sure …

Jan 6, 2018 · These use a triac control readily, sometimes a bridge is added. All you need to do to confirm it is to lift or otherwise insulate one brush and measure the motor terminal resistance …