High Power AC Voltage Controller, 8000w #220v ac Adjustable Power Supply

 

High Power AC Voltage Controller, 8000w #220v ac Adjustable Power Supply

The components called to build this AC regulator (ac regulators) are BTA41-600B TRIAC , 10k resistor, DB3 diac, 104j capacitor (275-400V) , 220k potentiometer etc. The process of designing a triac diagram using all these components is involved in the following steps:

1. Introduction to Components and Circuit:

Principle of Operation of TRIC Phase Control AC Voltage Regulator Some of the key ingredients involved include:

BTA41-600B TRIAC (600V, 40A): A FET RELAY (using a high-power TRIAC and Driving Optocoupler) used as the main switching element controlling the power supplied to the load by setting the AC line input phase.

       >Connect AC mains (Live) to T2 of the TRIAC (BTA41-600B).

       >Connect the load between T1 of the TRIAC and Neutral.

       >The Gate (G) terminal will receive the triggering signal via the DIAC and RC network.

DB3 Diac: This will ensure that the TRIAC will always get triggered by conducting only when the voltage across one capacitor reaches a particular value.

10k Resistor: The resistance also protects the circuit from high current, so it prevents circuit short-circuiting.

220k Potentiometer: Used to adjust the output voltage by changing the capacitor charging time and consequently the TRIAC firing angle.

Capacitors 104k x 2 Capacitors (275-400V): These are the inputs of the snubber network. This is in order to avoid voltage surges and therefore to protect the TRIAC.

**Triac Pinout**

All Components:

BTA41-600B TRIAC (600V, 40A)

Resistor 10k

DB3 Diac

Toroidal Coil

Capacitor 104j x 2 (275-400V)

220k Potentiometer

Resistor 82k

Diode 4007

Led 5mm

2. Circuit Operation:

This is the basic mode of RLC circuit operation where TRIAC conduction time in each AC cycle is controlled, leading to controlled or regulated power supply to the load.

Mander Design: The time it takes that capacitor to charge, which is a function of the 220kΩ pot, controls when the DB3 Diac conducts and fires the BTA41-600B TRIAC. Once it is triggered, a TRIAC lets current flow through the load for the rest of the AC cycle.

Adjusting Output Voltage: The potentiometer adjustment alters the capacitor charging rate and causes a change in the TRIAC firing angle; thus, the power delivered to the load is modified. Wider conduction phase = higher output voltage; shorter conduction phase = lower output.

3. Power Handling:

For example, if the AC load is 30V at 7000W, it may use BTA41-600B TRIAC, which is 300V or 600V, so let the passed-through current be 40A.

Heat sinking is necessary, otherwise they will get hot if you run them hard.

***Circuit Diagram***

5. Snubber Circuit:

The 104k caps (275-400V) acts as a snubber circuit to suppress voltage transients at the TRIAC due to inductive loads that may prevent it from opening or closing.

These are the capacitors connected in parallel to the TRIAC.

5. FINAL ASSEMBLY AND SAFETY CONSIDERATIONS:

Verify that all components are rated for the appropriate voltage and power levels.

PCB layout should also ensure that there is enough space between high-voltage components to avoid short circuits and enhance insulation.

By following these design principles, you can build a reliable AC voltage regulator that efficiently adjusts power output while maintaining component safety and longevity.