Question 3.34: A signal must be limited at ±100 mV. Assuming VD,on = 800 mV......

Figure 3.52(a) illustrates how the voltage sources must shift the break points. Since the positive limiting point must shift to the left, the voltage source in series with D_{1} must be negative and equal to 700 mV. Similarly, the source in series with D_{2} must be positive and equal to 700 mV. Figure 3.52(b) shows the result.