Back to Forums
8 posts / 0 new
Last post
#1 Nov 24, 2020
Sancho_Pansa
Offline
Last seen: 10 months 1 week ago
Joined: 2020-10-19 09:56

Analog Behavior Model with current input

Hello,

What behavior should I use to realize ccvs (current-controlled voltage source) ?

I didn't find models with current input.

I tried this one, but this way it doesn't work. 

 

Thanks

Sincerely

Sancho

Tue, 2020-11-24 13:41
retiredEE
Offline
Last seen: 1 month 2 weeks ago
Joined: 2018-03-21 12:19

Don't use an ABM part.  From your schematic select Place/PSpice Component/Source/Controlled Sources/CCVS.  This is an H part (from the analog.olb library).

Wed, 2020-11-25 02:24 (Reply to #2)
Sancho_Pansa
Offline
Last seen: 10 months 1 week ago
Joined: 2020-10-19 09:56

Ok, thanks

Wed, 2020-11-25 02:57
Sancho_Pansa
Offline
Last seen: 10 months 1 week ago
Joined: 2020-10-19 09:56

For CCVS from this library the only parameter is GAIN, whereas I'm looking for mor complex source.

In the meantime I've found the EVALUE component from ABM library.

But it doesn't do what I expect - instead of Gaussian output (when running dc sweep) it gives strignt line.

It seems that exp function doesn't work.

In the shematic below - E1E2 fail, E3 - Ok, but EXP output also fails.

Any comments ?

Sincerely,

Wed, 2020-11-25 11:27
oldmouldy
Offline
Last seen: 1 month 2 days ago
Joined: 2016-07-06 04:23

This seems to be fine, as in the output isn't a straight line, with PSpice for TI S004 and with a licensed PSpice installation, for a DC Sweep from 0 to 1V with steps of 10m.

Wed, 2020-11-25 11:37 (Reply to #5)
Sancho_Pansa
Offline
Last seen: 10 months 1 week ago
Joined: 2020-10-19 09:56

Don't understand what you mean. The iuput is straight line, in the cases where exp function is present.

I'm not aware what TI S004 is.

Wed, 2020-11-25 11:57
oldmouldy
Offline
Last seen: 1 month 2 days ago
Joined: 2016-07-06 04:23

"But it doesn't do what I expect - instead of Gaussian output (when running dc sweep) it gives strignt line" (sic) So from this it looks like you are getting a straight line at the output, or not? As I mentioned the output that I get with your "E1" circuit is not a straight line so, I would say, that there isn't an issue with the EXP function. The PSpice for TI has a version, the latest appears to be S004. (Since this post is in the PSpice for TI section, I reasoned that might be the PSpice installation that was being used)

Thu, 2021-02-11 06:20
joefinch
Offline
Last seen: 8 months 1 week ago
Joined: 2021-02-11 06:05

Honestly, The method of your explanation is very good. I like it the most. best air purifier and humidifierbest air purifier to buy

Download PSpice and try it for free! Download Free Trial
Cadence