difference between vpulse and vpwl voltage sources

[rob1012]

vpwl spectre

Hi, can any1 tell me if there is a difference in transient simulation response when i use vpulse or if i use vpwl voltage source in my circuit test bench?

 

[strennor]

different sources, use it on your own application

 

[hr_rezaee]

Hi
If shape of two signals be the same there is no difference otherwise if you have two different input then you have two different output.
pulse generates only pulse but pwl generate linear shapes.
regards

 

[rob1012]

i'm doing transient simulation (spectre) in ADE... i used vpulse supply with a 200nsec delay and noticed that the simulator encountered some time to converge at this point... anyway i tried to replace vpulse with vpwl with the exact waveform and noticed there were no problems as before.

 

[hr_rezaee]

i'm doing transient simulation (spectre) in ADE... i used vpulse supply with a 200nsec delay and noticed that the simulator encountered some time to converge at this point... anyway i tried to replace vpulse with vpwl with the exact waveform and noticed there were no problems as before.

Hi
Is your problem time?
The output results are the same?
regards

 

[rob1012]

i'm doing transient simulation (spectre) in ADE... i used vpulse supply with a 200nsec delay and noticed that the simulator encountered some time to converge at this point... anyway i tried to replace vpulse with vpwl with the exact waveform and noticed there were no problems as before.

Hi
Is your problem time?
The output results are the same?
regards

The output results are the same but the difference in simulation time is very long.. that's why i'm wonderin what could be the reason for this.
tnx

 

[Hughes]

What are parameters for vpulse and vpwl? Are you sure they have the same rise time?

 

[chiguoquan]

Vpwl and vpulse have more specific node information than the vsource,so i often use vpwl and vpulse in the tran simulation