AN2025 - APPLICATION NOTE

7/11

Second step: Pspice simulation

The figure 13 shows the simulation results. The result of this simulation is:

Therefore:

This accurate method can be used to estimate the maximum real avalanche peak power in the case where

the estimation with the simple method (cf §III) is too pessimist.

E

A VALANC HE_max

V

t

d

⋅⋅

0

t

p

∫

=

R = 47

S

Ω

C = 2.2nF

S

D

-

-

+

+

21

1

1

2

2

L = 280nH

F

V

= 100V

Clamp_min

Figure 13: Simulation results

V

= 14V

C0

I

= 4.2A

T0