# 2.6 Exercises

Assume diodes are silicon unless stated otherwise

## Analysis Problems

- For the circuit of Figure 2.6.1, determine the peak output voltage.

V_{sec }= 12 volts RMS, R_{load }= 50 Ω, C_{1 }= 1500 μF. - Sketch the output voltage waveform for the circuit of Problem 1, Figure 2.6.1, with and without the capacitor.
- Determine the peak output voltage for the circuit of Figure 3.6.2.

V_{sec }= 18 volts RMS, R_{load }= 75 Ω, C_{1 }= 470 μF. - Sketch the output voltage waveform for the circuit of Problem 3, Figure 2.6.2, with and without the capacitor.
- For the circuit of Figure 2.6.3, determine the peak output voltage.

V_{sec }= 18 volts RMS, R_{load }= 40 Ω, C_{1 }= 1000 μF. - Sketch the output voltage waveform for the circuit of Problem 5, Figure 2.6.3, with and without the capacitor.
- Determine the output voltage waveform and its amplitude for the circuit of Figure 3.6.4.

V_{in }= 10 sin 2π100t, V_{clip}= 8 volts, R = 10 kΩ. - Draw the output waveform with its amplitudes for the circuit of Figure 2.6.5.

V_{in }= 10 sin 2π100t, V_{clip }= 5 volts, R = 10 kΩ. - Draw the output waveform with its amplitudes for the circuit of Figure 2.6.6.

V_{in }= 12 sin 2π200*t*, V_{1 }= 6 volts, V_{2 }= 4 volts, R = 10 kΩ. - Draw the output waveform with its amplitudes for the circuit of Figure 2.6.7.

V_{in }= 5 sin 2π2000*t*, C = 10μF, R = 4.7 kΩ - Draw the output waveform with its amplitudes for the circuit of Figure 2.6.8.

V_{in }= 8 sin 2π500*t*, V clamp = 2 volts, C = 4.7 μF, R = 33 kΩ.

## Design Problems

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

## Challenge Problems

- 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

- Run a transient analysis of the circuit in Figure 2.6.1, Problem 1.
- Run a transient analysis of the circuit in Figure 2.6.2, Problem 3.
- Run a transient analysis of the circuit in Figure 2.6.3, Problem 5.
- 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.