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A voltage signal 10 sin t is applied to the circuit with ideal diodes, as shown in figure. The maximum and minimum values of the output waveform Vout of the circuit are respectively—
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- + 10 V and – 10 V
- + 4 V and – 4 V
- + 7 V and – 4 V
- + 4 V and – 7 V
Correct Option: D
The given circuit (i.e., fig-1)
For first half cycle the diode D2 will conduct while diode D1 will not conduct. Equivalent circuit for this case is shown below: (i.e., fig-2)
For the second half cycle diode D1 will conduct while diode D1 will not conduct. Equivalent circuit for this case is shown below: (i.e., fig-3)
From above figure
– 10 KI – 4 – 10 KI + 10 = 0
or I = | mA | 20 |
V0 = – 4 – 10 × | = – 4 – 3 | 20 |
= – 7V = V0 (min)
Hence alternative (D) is the correct choice.