Cadence CADENCE PSPICE A-D - TECH BRIEF Manual - page 9
CADENCE PSPICE A/D & PSPICE ADVANCED ANALYSIS
9
• Displaying results in a probability density histogram
• Displaying results in a cumulative distribution graph
Figure 4: Monte Carlo predicts the behavior of a circuit statistically when part values are varied within their
tolerance range
SMOKE
Smoke warns of component stress due to power dissipation, increases in junction temperature,
secondary breakdowns, or violations of voltage/current limits. Over time, these stressed compo-
nents cause circuit failure. Smoke compares circuit simulation results to the component’s safe
operating limits. If limits are exceeded, Smoke identifies the problem parameters. Devices can also
be derated to meet design requirements Smoke can also display average, RMS, or peak values from
simulation results and be used to compare these values against corresponding safe operating limits.
Figure 5: Smoke compares the simulated values with manufacturers’ limits to highlight devices operating
outside their safe operating range