# 2.6 Exercises

Assume diodes are silicon unless stated otherwise

## Analysis Problems

1. For the circuit of Figure 2.6.1, determine the peak output voltage.
Vsec = 12 volts RMS, Rload = 50 Ω, C1 = 1500 μF.

2. Sketch the output voltage waveform for the circuit of Problem 1, Figure 2.6.1, with and without the capacitor.
3. Determine the peak output voltage for the circuit of Figure 3.6.2.
Vsec = 18 volts RMS, Rload = 75 Ω, C1 = 470 μF.

4. Sketch the output voltage waveform for the circuit of Problem 3, Figure 2.6.2, with and without the capacitor.
5. For the circuit of Figure 2.6.3, determine the peak output voltage.
Vsec = 18 volts RMS, Rload = 40 Ω, C1 = 1000 μF.

6. Sketch the output voltage waveform for the circuit of Problem 5, Figure 2.6.3, with and without the capacitor.
7. Determine the output voltage waveform and its amplitude for the circuit of Figure 3.6.4.
Vin = 10 sin 2π100t, Vclip= 8 volts, R = 10 kΩ.

8. Draw the output waveform with its amplitudes for the circuit of Figure 2.6.5.
Vin = 10 sin 2π100t, Vclip = 5 volts, R = 10 kΩ.

9. Draw the output waveform with its amplitudes for the circuit of Figure 2.6.6.
Vin = 12 sin 2π200t, V1 = 6 volts, V2 = 4 volts, R = 10 kΩ.

10. Draw the output waveform with its amplitudes for the circuit of Figure 2.6.7.
Vin = 5 sin 2π2000t, C = 10μF, R = 4.7 kΩ

11. Draw the output waveform with its amplitudes for the circuit of Figure 2.6.8.
Vin = 8 sin 2π500t, V clamp = 2 volts, C = 4.7 μF, R = 33 kΩ.

## Design Problems

1. Design a 15 volt AC to DC power supply capable of drawing 200 mA.
2. Design a circuit that will limit its output voltage to a range of −5 volts to +10 volts.
3. Design a circuit that will shift its output voltage so that it is always positive. The input frequency is 2 kHz.

## Challenge Problems

1. Design a circuit that will shift its output voltage so that its negative peak is at +3 volts. The input frequency range is from 100 Hz to 1 kHz.

## Computer Simulation Problems

1. Run a transient analysis of the circuit in Figure 2.6.1, Problem 1.
2. Run a transient analysis of the circuit in Figure 2.6.2, Problem 3.
3. Run a transient analysis of the circuit in Figure 2.6.3, Problem 5.
4. Run two transient analyses on the clamper circuit of Example 2.4.1, first using a capacitor 100 times larger than specified, and second using a capacitor 100 times smaller than specified. Discuss the resulting waveforms.