Understanding Motor Controls
4th Edition
ISBN: 9781337798686
Author: Stephen L. Herman
Publisher: Delmar Cengage Learning
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Chapter 50, Problem 1RQ
To determine
Full form of SCR.
Expert Solution & Answer
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Explanation of Solution
SCR stands for Silicon-controlled Rectifier, which is a four layered semiconductor material. The four layers are of PNPN layers which have three junctions. The SCR has three terminals that are anode, cathode and gate.
SCR is a digital device, hence it has only two states whether on or off. The gate of SCR control the initial flow of current through SCR but once the current starts to flow gate cannot control the flow of current.
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Chapter 50 Solutions
Understanding Motor Controls
Ch. 50 - Prob. 1RQCh. 50 - Prob. 2RQCh. 50 - Prob. 3RQCh. 50 - How many layers of semiconductor material are used...Ch. 50 - SCRs are members of a family of devices known as...Ch. 50 - Briefly explain why thyristors have the ability to...Ch. 50 - What is the average voltage drop of an SCR when it...Ch. 50 - Explain why an SCR must be phase shifted.
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