Triac Control

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The following information is a placeholder, please disregard.

Variant Selection

The Schematic

While this Triac can technically function in either a high-side or low-side configuration, high-side switching is strongly recommended—especially for applications involving mains-voltage outlets.

• The Low-Side Risk: In a low-side configuration, switching occurs on the neutral side after the load. This means that even when the Triac is turned off and the circuit is idle, the hot mains voltage (120Vrms) remains present at the load or outlet terminals, presenting a significant shock hazard.

• The High-Side Benefit: Placing the Triac on the high side ensures that the hot line is disconnected immediately at the switch. When the Triac is off, the downstream load or outlet is completely isolated from live power, ensuring a safer state for the end user.

For any project where the load interfaces with standard AC mains outlets, high-side configuration should always be used as a standard safety practice.

NOTES for the author

The Simulation

Validation