How to make Dimmer Circuit At Home ( 50 V to 220V control ) @ AC වොල්ටි පාලකයක් සාදා ගන්නා ආකාරය ... скачать в хорошем качестве

How to make Dimmer Circuit At Home ( 50 V to 220V control ) @ AC වොල්ටි පාලකයක් සාදා ගන්නා ආකාරය ...

This is a 220V AC Dimmer Circuit Diagram capable of controlling loads between 50V to 220V up to 1000W (like lamps, fans, heaters). It uses a BT136 TRIAC, DIAC, and phase-angle control method. Below is a detailed explanation of each component and how the circuit works. ✅ Component Details: SymbolComponentValueType BT136TRIAC600V, 4A RV Variable Resistor100kΩ (for dimming control) R1Resistor2.2kΩR2Resistor10ΩC1, C2Capacitors0.1µF (104J) 400V DIACTrigger DeviceGeneric DIAC (30V-35V breakdown) LoadAC DeviceLamp, fan, heater (up to 1000W)AC Supply220V AC (L and N)Mains power source ⚙️ Working Principle: This is a phase control dimmer circuit using a TRIAC and DIAC: Power Input (AC 220V): Connected to L (Live) and N (Neutral). The circuit is in series with the load, so when TRIAC conducts, current flows through the load. Charging Path: When AC power is applied, the capacitor C1 charges through R1 + RV. The RV (Variable Resistor) sets the rate of charge, controlling the delay before TRIAC firing. Once the voltage across C1/C2 reaches the DIAC's breakdown voltage (usually ~30V), the DIAC conducts. Triggering the TRIAC: The sudden discharge through the DIAC sends a pulse to the gate of the TRIAC (BT136). This switches on the TRIAC, allowing current to flow through the load for the remainder of that half-cycle. Repeat Each Half Cycle: This process repeats every half-cycle of the AC waveform. The firing angle (point in the AC waveform where the TRIAC turns on) is controlled by RV. Dimming Function: Turning RV clockwise or counter-clockwise adjusts the firing angle. The more delayed the firing, the less power delivered to the load (dimmer light/lower fan speed). 🔌 Pin Configuration for BT136 TRIAC: Shown on the left side of the diagram: T1 – Terminal 1 T2 – Terminal 2 G – Gate ⚠️ Important Notes: Make sure all components, especially the TRIAC and capacitors, are rated for AC mains (at least 400V). Proper heat dissipation (heatsink) is needed for BT136 if used with high loads. Use insulated wires and ensure safety precautions when working with 220V AC. more Deatails whatsapp 0724190262.