L16_diode - ESC102 Introduction to Electronics Diodes A.R...

Info icon This preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Diodes ESC102 : Introduction to Electronics A.R. Harish Dept. of EE, IIT Kanpur Aug 26, 2010
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Diode Models open circuit V > V γ V < V γ V γ open circuit V > 0 V < 0 V γ open circuit r f V > V γ V < V γ + v d - I {exp( ) 1} d D S T v i I V = × - Simplicity Accuracy Constant Voltage Drop Model Piecewise Linear Model Ideal Diode Model
Image of page 2
D 1K 10V Analysis using ideal diode model open circuit V > 0 V < 0 1K 10V D mA k I 10 1 10 = =
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Analysis with a constant voltage diode model D 1K 10V open circuit 0.7V V > 0.7 V < 0.7 1K 10V 0.7V mA k I 3 . 9 1 7 . 0 10 = - =
Image of page 4
V γ open circuit r f V > V γ V < V γ Analysis with a constant voltage plus resistor diode model D 1K 10V mA I 208 . 9 10 1000 7 . 0 10 = + - =
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
D 5K 10V 5K 2mA Example Find the current through the diode using ideal diode model Is the diode forward biased? – Not Sure!! Assume that it is forward biased Carry out analysis and then check if current through the diode is in appropriate direction. If not , diode is reverse biased and we carry out the analysis again!!
Image of page 6
Example D 5K 10V 5K 2mA 10 2 0 5 D mA i K - - + + = 10V 5K 2mA i D 4 D i mA = Current is positive, so our assumption is correct Assume forward bias
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern