1. P-N junction forward bias characteristics

Determine the forward bias characteristics of a specific P-N Junction diode. The diagram

in figure 1 shows the arrangements for the voltage and current measurements. First,

complete the current measurements for the voltage steps given in table 1.

V1

XMMI

D1

1N4148

Figure 1

Table 1

XMM2

Vd (V)

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

1

V2

1.00V

0

PR1+

REF1-

ld (A)

REF1

1N4148

PR2

Mutisim Live-SU_Diode Circuit 1

Plot the data generated in table 1 (preferably using Microsoft Excel). Extrapolate the

straight-line part of the graph to intercept the voltage axis and estimate the tum on

voltage for the diode tested. Can you estimate the resistance of this diode? How do the

results in this experiment align with the theory of the operation of this device?