22 Chapter Two

Figure 26(a) and (b) The I-V characteristics of a diode and a linear approximation to the diode curve at the voltage Vb.

Figure 2.7 A diode and the linear equivalent circuit of the diode.

Understanding Circuit Simulation 23

d in the conductance array, and the equivalent current I, will be d in the current array. In turn, these values will be used to com-

model, whereas Fig. 2.8b illustrates the small-signal diode

ansistors are represented by extending the linear diode model. For

(b)

ure 2.8(a) and (b) The linear eqmvalent c~rcult of a &ode and the all-signal model of a diode