EE 330 Lab 8 Fall 2011

EE 330 Lab 8 Fall 2011 - EE 330 Laboraory 8 Thyristor...

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EE 330 Laboraory 8 Thyristor Device Characterization and Applications Fall 2011 Objective: The objective of this laboratory experiment is to become familiar with the operation thyristors, to develop methods for measuring key parameters of thyristors, , and to investigate some basic applications of these devices. Components Needed: Q4015L5 Triac, Q4010LS2 SCR, STGF7NC60HD Insulated Gate npn transistor, XE2410 24V- 0.5A incandescent lamp, and other standard electronic components. Background: Thyristors are devices commonly used in high power applications and are used extensively throughout the power electronics field. These devices are unique in that a small gate current or gate voltage can trigger a large current flow, regardless of whether that base current remains on or not. In their most ideal form, they are electronic switches where a logic-level signal can rapidly turn the switch ON or OFF. Thyristors are designed to operate as switches over a wide range of voltage and current levels and can be used to switch resistive loads but more commonly they are used to switch reactive loads. In this experiment emphasis will be placed only on switching resistive loads. Some additional circuit design issues become relevant when switching large reactive loads due to the extreme voltages or currents that are inherent when rapidly switching energy storage elements.
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EE 330 Lab 8 Fall 2011 - EE 330 Laboraory 8 Thyristor...

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