Nov 2, 2024 · Hi, In a dishwasher machine main board we have used 107NN0 triac for controlling ac loads such as valves, pumps, dispenser, etc. In about 2 to 3 percent of products sold to customers, …

Oct 20, 2025 · The current waveform shows your triac triggering half wave. That is because the gate resistor is far too small, and there isn't enough voltage across it to generate sufficient gate current to …

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 for such a …

Dec 5, 2022 · Hi everyone, I want to develop a soft start system for the receiver. In real system, it is a power supply in the laboratory with a variable resistance value - hence programming the resistance …

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 most likely …

Feb 5, 2025 · Problem with SCR and Optocoupler triggering Ahmad786 Feb 5, 2025 motor control opto-coupler scr control triac triac dimmer Search Forums New Posts A Thread Starter

Jul 28, 2024 · What modifications can be made to a TRIAC-based dimmer circuit to reduce flickering in LED bulbs at low brightness levels? The current setup uses a potentiometer for control in a DIY …

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.

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 for …

May 1, 2022 · The BW type triac is marketed as "snubberless" because it will withstand a high dV/dt. The opto-triac isn't quite as good with dV/dt so best to keep the snubber, but zero-crossing opto …