×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Are you an
Engineering professional?
Join Eng-Tips Forums!
• Talk With Other Members
• Be Notified Of Responses
• Keyword Search
Favorite Forums
• Automated Signatures
• Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

#### Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

# ANSOFT Designer: Non linear AM simulation

## ANSOFT Designer: Non linear AM simulation

(OP)
Can anyone tell me how to set up the basics of a non-linear AM simulation in Designer. The help files are non-existent and our ANSOFT support expired.

Basically I reduced the circuit down to almost nothing, a source with AM on it and a resistive load. I did a 1-tone harmonic balance simulation and the spectral plot shows no modulation. So, and this is specific to this tool, how does one see the AM tones? Is it a 2-tone harmonic balance with the modulation as one of the tones? I sort of tried this and it didn’t seem happy using F2 as the modulation frequency.

(I need a non-linear analysis because I do wan’t a non-linear diode model in the final circuit.)

### RE: ANSOFT Designer: Non linear AM simulation

(OP)
Back on support now …

The answer to the AM simulation problem in Designer is to use a 1-tone modulation envelope analysis. This is a hybrid simulation between harmonic balance and time domain analysis.

#### Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

#### Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

#### Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a partâ€™s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

# Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

• Talk To Other Members
• Notification Of Responses To Questions
• Favorite Forums One Click Access
• Keyword Search Of All Posts, And More...

Register now while it's still free!