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AC Thyristor Trigger Angle versus Power Factor


	This Demonstration allows you to manipulate a simple SCR circuit incorporating a resistive and an inductive load. You can view the interaction of each of the adjustable parameters graphically. The red ball represents the point of operation for any given set of parameters.


	Contributed by: Harley H. Hartman

The RMS current is calculated using the following formula:

, where

is the trigger angle,

is the load resistance,

is the load inductive reactance, and

is the supply voltage.

Equations and principles referenced from D. Hart, Introduction to Power Electronics, Upper Saddle River, NJ: Prentice Hall, 1997.

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