Solved Problems

# Solved Problems - t I ntroductiono E lectronics E CED3201...

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ECED3201: Introduction to Electronics Fall2009 Dalhousle University, Department of Electrical and computer Engineering Solved Problems l- Assuming the diodes to be ideal, find the values of I and V in the circuit in Fig.l. ^l()v Fig. 1 In each of the ideal-diode circuits shown in Fig.2, v1 is a l-kHz, 10-V peak sine wave. Sketch the waveform resulting at ve. What are its positive and negative peak values? 2- A silicon junction i= 0.1 mA and i = 2 diode with n = t has v - OJ V at i=1mA. Find the voltage drop for 10mA and V1=J\$76V (T=300oK). +l{}V r hfl 3-

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A junction diode is operated in a circuit in which it is supplied with a constant current /, what is the effect on the forward voltage of the diode if an identical diode is connected in parallel? Assume n =1 and Vr=25mV {T=300oK). a constant*voltage drop model with Vo = 0.7V for each diode in the circuit shown in Fig.3. Find the current through each diode and the vohage at each node. 10v ?_ Fig.3 s3 -gsv
-t-tO V t0L\$- &&* ;tov Y %y.l **' z { \$v t t t; T. tXl; \r-+ .r-f e-'tj*'e t fl4^ k{*.

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Solved Problems - t I ntroductiono E lectronics E CED3201...

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