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Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Majority and Minority Carriers Majority.

Published byJohnathan McGee Modified over 8 years ago

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Presentation on theme: "Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Majority and Minority Carriers Majority."— Presentation transcript:

1 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Majority and Minority Carriers Majority Carriers –The majority carriers in n-type materials are electrons. –The majority carriers in p-type materials are holes. Minority Carriers –The minority carriers in n-type materials are holes. –The minority carriers in p-type materials are electrons.

2 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla p-n Junctions One end of a silicon or germanium crystal can be doped as a p-type material and the other end as an n- type material. The result is a p-n junction.

3 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla p-n Junction The result is the formation of a depletion region around the junction.

4 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla p-n Junction

5 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla p-n Junction

6 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Diodes The diode is a 2-terminal device. A diode ideally conducts in only one direction.

7 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Diode Operating Conditions A diode has three operating conditions: –No bias –Forward bias –Reverse bias

8 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Diode Operating Conditions No Bias –No external voltage is applied: VD = 0 V –No current is flowing: ID = 0 A –Only a modest depletion region exists

9 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Diode Operating Conditions Reverse Bias –External voltage is applied across the p-n junction in the opposite polarity of the p- and n-type materials.

10 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Diode Operating Conditions Reverse Bias The reverse voltage causes the depletion region to widen. The electrons in the n-type material are attracted toward the positive terminal of the voltage source. The holes in the p-type material are attracted toward the negative terminal of the voltage source.

11 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Diode Operating Conditions Forward Bias –External voltage is applied across the p-n junction in the same polarity as the p- and n-type materials.

12 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Diode Operating Conditions Forward Bias

13 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Diode Characteristics Conduction Non-Conduction Region Region

14 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Actual Diode Characteristics

15 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Zener Region

16 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Forward Bias Voltage

17 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Temperature Effects

18 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla IDEAL VERSUS PRATICAL

19 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Resistance Levels

20 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla DC (Static) Resistance

21 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla AC (Dynamic) Resistance

22 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Average AC Resistance

23 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Diode Equivalent Circuit

24 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Diode Capacitance

25 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Reverse Recovery Time (trr)

26 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Diode Specification Sheets

27 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Diode Symbol and Packaging

28 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Other Types of Diodes Zener diode Light-emitting diode Diode arrays

29 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Zener Diode

30 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Light-Emitting Diode (LED)

31 Electronics Devices and Circuit Theory 10th Edition - Boylestad Electronics Fundamentals 8 th edition - Floyd/Buchla Diode Arrays

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