Kielkowski Inside SPICE

22

UnderstandingCircuit Simulation

Chapter Two

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

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

(b)

Figure 2.7 A diode and the linear equivalent circuit

of the diode.

The linear eqmvalent c~rcultof a &ode and the all-signalmodel of a diode

ure 2.8(a) and (b)