Problem

Sketch iR and vo for the network of Fig. for the input shown.FIG.

Sketch iR and vo for the network of Fig. for the input shown.

FIG.

Step-by-Step Solution

Solution 1

Refer to Figure 2.180 in the text book.

Draw the following for positive region of the input voltage.

C:\Users\sanyasinaidu\Desktop\1.jpg

Figure 1

For the positive region of the input voltage , the diode is reverse bias and acts as open circuit up to of input.

C:\Users\sanyasinaidu\Desktop\3.jpg

Figure 2

Calculate the output voltage for input up to .

For the input voltage is above , diode is forward bias and acts as battery of .

Draw the following circuit:

C:\Users\sanyasinaidu\Desktop\2.jpg

Figure 3

Calculate the output voltage for input after .

Draw the following for negative region of the input voltage.

C:\Users\sanyasinaidu\Desktop\4.jpg

Figure 4

For the negative region of the input voltage , the diode is reverse bias and acts as open circuit up to of input.

C:\Users\sanyasinaidu\Desktop\6.jpg

Figure 5

Calculate the output voltage for input up to .

For the input voltage is above , diode is forward bias and acts as battery of .

Draw the following circuit:

C:\Users\sanyasinaidu\Desktop\5.jpg

Figure 6

Calculate the output voltage for input after.

Draw the output voltage waveform.

10774-2-36P_B

Figure 7

For the range there is no current flow through the resistor.

So, the reverse biased current

For the condition the reverse biased voltage is,

Calculate the reverse biased current .

Therefore, when then the positive reverse biased current is .

For the reverse biased voltage is,

Calculate the reverse biased current .

Therefore, when then the negative reverse biased current is .

Draw the resistance current .

10774-2-36P_C

Figure 8

Solution 2

Refer to Figure 2.180 in the text book.

Draw the following for positive region of the input voltage.

C:\Users\sanyasinaidu\Desktop\1.jpg

Figure 1

For the positive region of the input voltage , the diode is reverse bias and acts as open circuit up to of input.

C:\Users\sanyasinaidu\Desktop\3.jpg

Figure 2

Calculate the output voltage for input up to .

For the input voltage is above , diode is forward bias and acts as battery of .

Draw the following circuit:

C:\Users\sanyasinaidu\Desktop\2.jpg

Figure 3

Calculate the output voltage for input after .

Draw the following for negative region of the input voltage.

C:\Users\sanyasinaidu\Desktop\4.jpg

Figure 4

For the negative region of the input voltage , the diode is reverse bias and acts as open circuit up to of input.

C:\Users\sanyasinaidu\Desktop\6.jpg

Figure 5

Calculate the output voltage for input up to .

For the input voltage is above , diode is forward bias and acts as battery of .

Draw the following circuit:

C:\Users\sanyasinaidu\Desktop\5.jpg

Figure 6

Calculate the output voltage for input after.

Draw the output voltage waveform.

10774-2-36P_B

Figure 7

For the range there is no current flow through the resistor.

So, the reverse biased current

For the condition the reverse biased voltage is,

Calculate the reverse biased current .

Therefore, when then the positive reverse biased current is .

For the reverse biased voltage is,

Calculate the reverse biased current .

Therefore, when then the negative reverse biased current is .

Draw the resistance current .

10774-2-36P_C

Figure 8

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