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Micro-Cap 12 Discussion / Re: Incandescent Light Bulb
« Last post by Robert on March 30, 2024, 03:17:56 pm »
THANK YOU! - Success, I am still learning, MC12 is a great program.
Regards, Robert
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Micro-Cap 12 Discussion / Re: Incandescent Light Bulb
« Last post by Rohit on March 30, 2024, 05:42:48 am »
You ran transient analysis then tried to find 'Node voltage', in this case the voltage displayed will be the voltage calculated at last data point (end of simulation time) which is 300m   seconds (as set by you). To find DC voltage (bias point) you should run Dynamic DC analysis.
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Micro-Cap 12 Discussion / Re: Incandescent Light Bulb
« Last post by Robert on March 29, 2024, 08:50:59 pm »
Rename .txt to CIR.
Thanks,
Robert
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Micro-Cap 12 Discussion / Re: Incandescent Light Bulb
« Last post by Rohit on March 29, 2024, 04:55:52 pm »
I also think so, dc voltage at A should be zero. If you can post the micro-cap schematic file, then I can look into it.
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Micro-Cap 12 Discussion / Re: Incandescent Light Bulb
« Last post by Robert on March 28, 2024, 06:47:41 pm »
Hello All,

I wanted to check the DC voltages of the circuit in the attachment.
At point "A" there should be 0 Volt DC voltage.
What am I doing the wrong way, and how do I check DC voltages in a circuit?
Thanks for help.
Robert
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Micro-Cap 12 Tutorials / Re: Importing components.
« Last post by MC12 on March 05, 2024, 08:33:47 am »
Thank you!
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Micro-Cap 12 Tutorials / Importing components.
« Last post by Rohit on March 04, 2024, 04:40:09 pm »
Here is the link to the detailed components import guide.

https://drive.google.com/file/d/11sNSeuTHHWYLW0MUTES7zDJf6iDmp-NC/view?usp=drive_link

I could not write this as a forum post because it was hard to keep correct formatting.
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Micro-Cap 12 Discussion / Re: Incandescent Light Bulb
« Last post by MC12 on February 18, 2024, 11:18:58 am »
It seems there's a load of YouTube material I wasn't aware of.  Pity their authors are not more consistent in titling, so search finds them all!
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Micro-Cap 12 Discussion / Re: Incandescent Light Bulb
« Last post by Rohit on February 17, 2024, 11:10:36 am »
Importing and creating a component deserves it's own thread. I'll soon write a detailed guide.
Meanwhile check this introductory video.
https://www.youtube.com/watch?v=jBNjpias6Qc
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Micro-Cap 12 Discussion / Re: Incandescent Light Bulb
« Last post by MC12 on February 17, 2024, 09:45:01 am »
Quote from: Rohit on February 16, 2024, 03:03:53 pm
Code: [Select]
*VO=NOMINAL OPERATING VOLTAGE
*IO=NOMINAL STEADY STATE OPERATING CURRENT
*RCOLD=FILAMEMT RESISTANCE MEASURED AT ROOM TEMP (300K)
*TAU=CURRENT TIME CONSTANT AFTER A 0 (zero) TO VO STEP IS APPLIED
.SUBCKT LAMP 1 2
.PARAM VO=28 IO=25m RCOLD=112 TAU=22m TAMB=300
H1 6 0 VML 1
RH1 6 0 1
GP 0 4 VALUE={V(6)*V(1,2)}
*V(4,0) = FILAMENT TEMPERATURE IN KELVINS
RT 4 5 {300*(VO-IO*RCOLD)/(IO*IO*VO*RCOLD)}
CT 4 5 {TAU*IO*IO*VO*RCOLD/(300*(VO-IO*RCOLD))}
VAMB 5 0 {TAMB}
El 7 0 1 2 300
R1 7 0 1
E2 8 0 VALUE={V(4)*RCOLD}
R2 8 0 1
E3 10 0 7 9 10MEG
R3 10 0 1
E4 9 0 VALUE={V(8)*V(10)}
R4 9 0 1
GR 1 3 10 2 1
VML 3 2 0
.ENDS LAMP

Instructions how to add that as a library model would be good, please?
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