Electronics-I Lecture 03

Electronics-I Lecture 03 - Effectoftemperatureondiode...

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Lecture 03 Electronics I 1 Effect of temperature on diode  operation I s  and V are functions of temperature i-v characteristics vary with temperature At a given constant diode current Voltage drop across diode decreases by 2mV  for every 1 0 C increase in temp. Change in diode voltage with temperature  has been exploited in the design of  electronic thermometers 
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Lecture 03 Electronics I 2 Reverse Bias Region T  in  magnitude (25 mV)                      becomes  The reverse current is constant and equal to I s real diodes exhibit reverse currents much larger than I s A small-signal diode has I s  = 10 -14  to 10 -15  Reverse current is of the order of 1 nA Reverse current increases with increase in  magnitude of  reverse voltage Major part of reverse current is due to leakage current which is 
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This note was uploaded on 12/12/2010 for the course EE 1 taught by Professor Shahidanwar during the Spring '10 term at NUCES.

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Electronics-I Lecture 03 - Effectoftemperatureondiode...

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