8 pn Junction Diode : Transient Response

Slides:

Advertisements

Similar presentations

Power Semiconductor Systems I

Advertisements

Chapter 6-1. PN-junction diode: I-V characteristics

Lecture 14 OUTLINE pn Junction Diodes (cont’d)

© Electronics ECE 1231 Recall-Lecture 3 Current generated due to two main factors Drift – movement of carriers due to the existence of electric field Diffusion.

Semiconductor Device Physics Lecture 8 PN Junction Diodes: I-V Characteristics Dr. Gaurav Trivedi, EEE Department, IIT Guwahati.

CHAPTER TWO POWER SEMICONDUCTOR DIODES AND CIRCUITS DESIGNED BY DR. SAMEER KHADER PPU “E-learning Project”

Spring 2007EE130 Lecture 20, Slide 1 Lecture #20 OUTLINE pn Junctions (cont’d) – small-signal model – transient response turn-off Reading: Chapters 7,

Spring 2007EE130 Lecture 19, Slide 1 Lecture #19 OUTLINE pn junctions (cont’d) – Charge control model Reading: Finish Chapter 6.3.

PN-Junction Diode Characteristics

Electronic Circuit Analysis and Design Second Edition

Power Electronics Lecture (3)

5.5 Transient and A-C Conditions Time Variation of Stored Charges Reverse Recovery Transient Switching Diodes Capacitance of p-n.

Lecture 13 OUTLINE pn Junction Diodes (cont’d) Charge control model

EE130/230A Discussion 7 Peng Zheng.

ECE 4991 Electrical and Electronic Circuits Chapter 4.

Instrumentation & Power Electronics

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

President UniversityErwin SitompulSDP 8/1 Lecture 8 Semiconductor Device Physics Dr.-Ing. Erwin Sitompul President University

Switch Realization for DC-DC Converters

PN-Junction Diode Characteristics

 P-N Junction Diodes  Current Flowing through a Diode I-V Characteristics Quantitative Analysis (Math, math and more math)

Ideal currents in a pn Junction

Power Semiconductor Devices Power Diodes Cross-sectional view of a pn- junction diode intended for power applications. I-V characteristics of a pn- junction.

Diode in Digital Logic Design Section Schedule #DateDayTopicSection 1 1/14TuesdayDiagnostic Test L 1/14Tuesday Lab protocol, cleaning procedure,

ECE 4991 Electrical and Electronic Circuits Chapter 4

Lecture 10 Power Device (1)

PN-junction diodes: Applications

PN-junction diode: I-V characteristics

Chapter 2 Overview of Power Semiconductor Devices

Recall-Lecture 4 Current generated due to two main factors

Lecture 10 OUTLINE pn Junction Diodes (cont’d)

Lecture 10 OUTLINE pn Junction Diodes (cont’d)

Lecture 13 OUTLINE pn Junction Diodes (cont’d) Charge control model

(a) Find the value of average charging current,

Recall-Lecture 4 Current generated due to two main factors

Transient Signals of pn Junction Diodes

Bipolar Junction Transistors (BJT)

Power Semiconductor Systems I

7 pn Junction Diode: Small-signal Admittance

Recall-Lecture 4 Current generated due to two main factors

PN-Junction Diode Characteristics

Islamic University of Gaza

Chapter 20 PN Junction Diodes.

7 pn Junction Diode: Small-signal Admittance

Chapter 5. pn Junction Electrostatics

BJT Static Characteristics

Lecture #12 OUTLINE Metal-semiconductor contacts (cont.)

Recall-Lecture 4 Current generated due to two main factors

Lab For the following simple switch mode power supply:

Lecture #21 ANNOUNCEMENTS No coffee hour today 

Time Response System & Control Engineering Lab.

Lecture 13 OUTLINE pn Junction Diodes (cont’d) Charge control model

Lecture #18 OUTLINE pn junctions (cont’d)

Deviations from the Ideal I-V Behavior

بسم الله الرحمن الرحیم.

pn Junction Electrostatics

pn Junction Electrostatics

Lecture 10 OUTLINE pn Junction Diodes (cont’d)

Power Computations Power and Energy

Lecture 10 OUTLINE pn Junction Diodes (cont’d)

BJT Static Characteristics

Lecture 12 OUTLINE pn Junction Diodes (cont’d)

STORE MANAGER RESPONSIBILITIES.

Lecture 13 OUTLINE pn Junction Diodes (cont’d) Charge control model

Lecture 10 OUTLINE pn Junction Diodes (cont’d)

ECEN 5817 Housekeeping I plan on indicating for each lecture(s) of this year the equivalent lecture(s) from Spr. 06. This will make it easy if you choose.

Transient Signals of pn Junction Diodes

Lecture 12 OUTLINE pn Junction Diodes (cont’d)

Introduction Dr. Kakade K.P.

Lecture 10 Power Device (1)

Presentation transcript:

8 pn Junction Diode : Transient Response

8.1 TURN-OFF TRANSIENT 8.1.1 Introduction trr: reverse recovery time ts : storage time or storage delay time trr: reverse recovery time tr : trr-ts For t<0 For t > trr

8.1.2 Qualitative Analysis Why is there a delay in going from the on-state to the off-state? In ideal p+-n diode, i=AJP(x)= -qADPdΔpn/dx|x=xn

8.1.3 The Storage Delay Time Quantitative Analysis Form the charge control approach, i=-IR for 0+≤t<ts giving (8.3) (8.4) (8.5) From QP(tS)=0

Measurement

8.1.4 General Information 8.2 TURN-ON TRANSIENT

From the charge control approach, (8.10) (8.11) (8.12) (8.13)

Under a steady state conditions, the stored hold charge in ideal diode VA→ vA … Steady state (8.14) (8.15) (8.16)