EEVblog Electronics Community Forum
A Free & Open Forum For Electronics Enthusiasts & Professionals
Welcome,
Guest
. Please
login
or
register
.
Did you miss your
activation email
?
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
This topic
This board
Entire forum
Google
Bing
Home
Help
Search
About us
Links
Login
Register
EEVblog Electronics Community Forum
»
Electronics
»
PCB/EDA/CAD
»
LTspice Inductor current not symetrical around zero
« previous
next »
Print
Search
Pages: [
1
]
Go Down
Author
Topic: LTspice Inductor current not symetrical around zero (Read 1565 times)
0 Members and 1 Guest are viewing this topic.
Faringdon
Super Contributor
!
Posts: 2124
Country:
LTspice Inductor current not symetrical around zero
«
on:
September 05, 2021, 07:42:12 pm »
Hi,
I am pulsing +5v/-5v across an inductor, both saturable, and fixed, but my current is not symetrical around zero.
Do you know why not?
Logged
'Perfection' is the enemy of 'perfectly satisfactory'
Ian.M
Super Contributor
Posts: 13175
Re: LTspice Inductor current not symetrical around zero
«
Reply #1 on:
September 05, 2021, 08:28:10 pm »
The .tran startup option has no effect as you have no DC sources.
Your source does not have a symmetrical waveform
*
- fix it!
.tran uic forces all inductor currents to start from zero. Therefore if you don't want a startup transient you must start the waveform at a point in the cycle where the inductor current would be zero (after many cycles).
Try:
Code:
[Select]
PULSE(-5 5 25u 100n 100n {50u-100n} 100u)
* See my comments here:
https://www.eevblog.com/forum/projects/where-is-my-error-in-this-ltspice-simulation/
Logged
The following users thanked this post:
Faringdon
Print
Search
Pages: [
1
]
Go Up
« previous
next »
Share me
Smf
EEVblog Electronics Community Forum
»
Electronics
»
PCB/EDA/CAD
»
LTspice Inductor current not symetrical around zero
There was an error while thanking
Thanking...
EEVblog Main Site
EEVblog on Youtube
EEVblog on Twitter
EEVblog on Facebook
EEVblog on Odysee