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LME49830 in TINA
LME49830 in TINA
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Old 5th March 2019, 08:40 PM   #21
UltimateX86 is offline UltimateX86  France
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LME49830 in TINA
I had a lot of difficulty to bias with a CSS, this amp is a good base for a futur amplifier

now lme
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Old 6th March 2019, 12:07 AM   #22
kokoriantz is offline kokoriantz  Lebanon
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Just bias with a battery on one output . It works . I will order a pair of this and try out in bridged single supply . Thanks for the spice models , I wonder how you could find it .

Compensation input doesn't work neither. I couldn't find bellow 40$ a pair , too expensive for me to try it out.
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File Type: jpg SNAM127.JPG (389.2 KB, 86 views)
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Old 6th March 2019, 07:47 AM   #23
UltimateX86 is offline UltimateX86  France
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LME49830 in TINA
Hi kokoriantz, could you give me your file with lateral mosfet?

I added a battery in mine and mosfet current dont change

thanks
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Old 6th March 2019, 07:56 AM   #24
kokoriantz is offline kokoriantz  Lebanon
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Biased 782ma .
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File Type: pdf snam127.TSC.PDF (316.5 KB, 9 views)
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Old 6th March 2019, 08:04 AM   #25
UltimateX86 is offline UltimateX86  France
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LME49830 in TINA
Ok thanks but i dont have your file :

C:\Users\exr\Documents\2sk1058.mod
C:\Users\haik\Documents\2sj162.mod
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Old 6th March 2019, 08:16 AM   #26
UltimateX86 is offline UltimateX86  France
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LME49830 in TINA
unless you know how to add this in tina:
Attached Files
File Type: txt Hegglun Model Notes.txt (856 Bytes, 3 views)
File Type: txt Hegglun Models.txt (2.7 KB, 1 views)
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Old 6th March 2019, 10:50 AM   #27
kokoriantz is offline kokoriantz  Lebanon
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put the TSM files in macrolib folder where you will put other spice models later. In Tina, apply insert/macro and show the files, the transistors will be inserted in the circuit .The other files to change txt to mod .
Attached Files
File Type: txt 2sj162.TSM.txt (1.6 KB, 3 views)
File Type: txt 2sk1058.TSM.txt (1.6 KB, 2 views)
File Type: txt 2sj162.txt (537 Bytes, 3 views)
File Type: txt 2sk1058.txt (534 Bytes, 3 views)
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Old 6th March 2019, 11:17 AM   #28
xrk971 is offline xrk971  United States
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LME49830 in TINA
This is an interesting IC and looks very useful. I have not used it before but looking at the data sheet it appears that the N and P connections need to have a sense resistor to tell it how much current is flowing. As you are using this in a Circlotron mode and leaving the “P” not connected, there is no current to sense and the IC probably has one of its safety features now active to prevent damage.

Try setting it up in spice per the recommended schematic to see if it models correctly. My guess is that you need a Rq. You might be able to fool it by connecting P from each across (in an X crossover) a Rq strapped across the the gate stoppers for the N channels? But most likely, you cannot use this in a Circlotron as it is designed for consumer (single function) push pull amps.
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File Type: jpeg FEBC61BC-A243-4624-8F10-4DF8A6EC233C.jpeg (113.4 KB, 60 views)
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Last edited by xrk971; 6th March 2019 at 11:19 AM.
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Old 6th March 2019, 11:26 AM   #29
kokoriantz is offline kokoriantz  Lebanon
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in snam126 zip folder you find lme49830.TSM file ,add it also to macrolib folder to add a second one .
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Old 6th March 2019, 12:06 PM   #30
UltimateX86 is offline UltimateX86  France
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LME49830 in TINA
xrk971,

The resistance RQ 12k, is often absent :

LME_AMP_SCHEMATIC.pdf - Google Drive
http://forum.vegalab.ru/attachment.p...8&d=1361379853
http://ddata.over-blog.com/1/74/30/0...Tuto_V4.03.pdf page 22

an other lateral mosfet without RQ

LME49830 Project/Boards...
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