Cadence PSPICE SCHEMATIC Uživatelský manuál stáhnout pdf (Strana 16)

Step Response

To simulate a step response, create a new project and perform a transient analysis using the same steps

as above, but with a VPULSE voltage source. The VPULSE source has 7 parameters affecting the

waveform.

V1 = First Voltage

V2 = Second Voltage

TD = Initial Delay

TR = Absolute Rise Time

TF = Absolute Fall Time

PW = Pulse Width

PER = Period

To simulate a step response, we use a VPULSE source set to V1=0V, V2=1V, TD=0, TR=1ps, TF=1ps,

PW=1s, and PER=2s. A 1 picosecond rise/fall time is extremely small with regard to the simulation time,

so it closely approximates the ideal step function.

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Cadence PSPICE SCHEMATIC Uživatelský manuál Strana 16