Lecture 1 - Webstaff.kmutt.ac.th - kmutt
Lecture 1 - Webstaff.kmutt.ac.th - kmutt
Lecture 1 - Webstaff.kmutt.ac.th - kmutt
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Reverse Bias<br />
Diode Operating Conditions<br />
External voltage is applied <strong>ac</strong>ross <strong>th</strong>e p-n junction in<br />
<strong>th</strong>e opposite polarity of <strong>th</strong>e p- and n-type materials.<br />
• The reverse voltage causes <strong>th</strong>e<br />
depletion region to widen.<br />
• The electrons in <strong>th</strong>e n-type material<br />
are attr<strong>ac</strong>ted toward <strong>th</strong>e positive<br />
terminal of <strong>th</strong>e voltage source.<br />
• The holes in <strong>th</strong>e p-type material are<br />
attr<strong>ac</strong>ted toward <strong>th</strong>e negative<br />
terminal of <strong>th</strong>e voltage source.<br />
Electronic Devices and Circuit Theory, 10/e<br />
Robert L. Boylestad and Louis Nashelsky<br />
12<br />
Copyright ©2009 by Pearson Education, Inc.<br />
Upper Saddle River, New Jersey 07458 • All rights reserved.
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