Stats

  • Locked Locked
  • Replies 5
  • Subscribers 125
  • Views 15327
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

A few questions regarding using PSS for rectifier design

MenghanSun

Dear all,

I'm using PSS for rectifier simulation and try to look at the voltage and currents in steady state. I'm trying to improve the accuracy of the PSS and try to get the same results as in the transient simulation (after it settled).

Currently, I use the Harmonic Balance mode. However, I heard Shooting Newton is better as it is only a wrapper for transient simulation. But, personally, I find HB to be more stable. From reading the user manual, when the over_sampling factor is set to be very big, the accuracy is very high. But how big should we set to this over_sampling factor to be? The higher, the better? Also, is there any additional way to improve the accuracy of the pss simulation? max_iters?

Also, does PSS support multi-thread? How to activate this?

I found PSS HB sometimes giving the correct results (i.e. the same as transient), other times not giving the correct result. Is this because I'm not setting the convergence parameters properly?

I know the port element in cadence only provides power in reference to 50 Ohm. Could you please recommend a solution if we have to use a port that has complex impedance? For example, a rectifier driven by custom antenna whose impedance conjugatively matched to the rectifier.

I use mmsim14 + ic616.

Thank you very much,

Menghan

Parents
  • MenghanSun
    Hi Andrew,

    Thank you very much for your help regarding the setting of reltol in the ADE, and the results did improve after setting reltol=1e-6

    I'm a PhD student, to contact the customer support, I have to go through a lengthy process with the university...

    Also, do you think tightening max_time_step will help further improve the simulation accuracy (for both transient and harmonic balance)?

    Regards,
    Menghan
Reply
  • MenghanSun
    Hi Andrew,

    Thank you very much for your help regarding the setting of reltol in the ADE, and the results did improve after setting reltol=1e-6

    I'm a PhD student, to contact the customer support, I have to go through a lengthy process with the university...

    Also, do you think tightening max_time_step will help further improve the simulation accuracy (for both transient and harmonic balance)?

    Regards,
    Menghan
Children
No Data

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.