Re: Sub circuit heat dissipation not showing
Brad, One of the frustrating things for me about this conversation, is that I don't think you have made clear what you are simulating, and what your problem or question is. You referred to a TIP142
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Andy
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#90126
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Re: .wav files
Hello Teodor, Please run the examples you got wit LTspice. wavein.asc, waveout.asc, ring.wav C:\Program Files (x86)\LTC\LTspiceIV\examples\Educational Best regards, Helmut
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Helmut Sennewald
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#90103
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Re: Sub circuit heat dissipation not showing
Hello Brad, Ctrl left mouse click on the plot formula in the waveform viewer. LTspice will then show a small window with the average power. Best regards, Helmut PS: Second attempt to write an answer.
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Helmut Sennewald
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#90127
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.wav files
Hello, I do have a problem in using a .wav file as a input voltage source. I have followed the instructions of Spice Guru Simon Bramble in this video: LTspice: Voltage Sources (Importing and Exporting
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Teodor Vasile
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#90102
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Re: Sub circuit heat dissipation not showing
Nit: "there is **no such thing** as 'RMS power'." Well, there is, but you wouldn't find it a useful thing to compute. As you said, it has no physical significance. So nobody ever calculates RMS power.
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Andy
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#90124
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Re: Sub circuit heat dissipation not showing
Hello Brad, Ctrl left mouse click on the power formula in the waveform window. Then you will get a single number which is the average power. Best regards, Helmut
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Helmut Sennewald
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#90140
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Re: Sub circuit heat dissipation not showing
Not an answer to your question, but there is **no such thing** as 'RMS power'. The product of RMS voltage and RMS current with zero phase difference is 'average power'. For pedants, one can calculate
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John Woodgate <jmw1937@...>
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#90101
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Re: "4 GROUP.zip" upload
Thanks Andy, I'm still working on fully understanding your post. Thanks Bordodynov, I added your 2 model.s The BS250P returned and error. "Error on line 602 : .model bs250p vdmos pchan rg=160
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kinarfi
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#90236
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Re: Need help to design a transimpedance amplifier
Hi there,Please, Please see an Idea I have posted in the Temp Folders of this group. (Photo Amplifier15.asc) Best regards,Michael P Kiwanuka To: LTspice@... From: LTspice@...
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Michael Peter Kiwanuka
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#90099
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Re: Henry's current transformer problem
From the available data we have not seen Br depending temperature change from 25¡ã C to 100¡ã C. Bordodynov. 05.08.2016, 15:56, "hkafeman@... [LTspice]" <ltspice@...>:
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#90108
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Re: Henry's current transformer problem
Borodoynov Thank you that looks like a good typical material to use. My understanding is then that given that I am operating at only 50Hz with just some high frequency transients, that any core losses
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hkafeman@...
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#90097
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Re: Henry's current transformer problem
Hello Henry Kafeman. See material N41 BS (25 ¡ãC)=490mT BS (100 ¡ãC)=390mT Hc (25 ¡ãC)=22A/m Hc (100 ¡ãC)=20A/m Br=0.1T Power Transformer (low loss) f<100 kHz N27 (?i = 2000 ) low cost, hi-power N41
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#90096
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Re: Henry's current transformer problem
analogspiceman and Andy Thank you for your replies. I appreciate that there are many different Ferrite materials. I do not know which specific material my CT is made of, so am looking to model a
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HKafeman <hkafeman@...>
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#90095
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Re: Need help to design a transimpedance amplifier
Thanks for your response Jerry Lee Marcel.. But...I could see this noise everywhere in the circuit.. I mean power supply as well...
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t.obulesu@...
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#90093
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Re: Need help to design a transimpedance amplifier
I design a lot of TIA type of amp. I don't know what kind of speed you are looking for. But your requirement is very easy, the lowest is 200nA. Any opamp with bias current of less than 10nA will work
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Alan Liu
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#90110
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Re: Need help to design a transimpedance amplifier
I tried to answer a couple of days ago, but it didn't come through, so I'll write it again: The noise you observe compes from the fact that you have these big 100k resistors in the non-inverting
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Jerry Lee Marcel
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#90090
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Re: "4 GROUP.zip" upload
I am sorry. .MODEL BS250P .... Bordodynov. 05.08.2016, 09:35, "§¡§Ý§Ö§Ü§ã§Ñ§ß§Õ§â §¢§à§â§Õ§à§Õ§í§ß§à§Ó BordodunovAlex@... [LTspice]" <ltspice@...>:
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§¡§Ý§Ö§Ü§ã§Ñ§ß§Õ§â §¢§à§â§Õ§à§Õ§í§ß§à§Ó
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#90089
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Re: "4 GROUP.zip" upload
Hi. .model BS170 VDMOS VTO=1.824 RG=270 RS=1.572 RD=1.436 RB=.768 KP=.1233 Cgdmax=20p Cgdmin=3p CGS=28p Cjo=35p Rds=1.2E8 IS=5p Bv=60 Ibv=10u Tt=161.6n .MODEL BS250 VDMOS pchan Rg=160 VTO=-3.193
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§¡§Ý§Ö§Ü§ã§Ñ§ß§Õ§â §¢§à§â§Õ§à§Õ§í§ß§à§Ó
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#90088
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Re: PWL TRIGGER syntax
TRIGGER V(n003)>1 Without knowing what you have, if you're using the "trigger" keyword with current sources, it doesn't work, only for voltage sources. Vlad ______________________
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Vlad
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#90087
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Re: BS250 & BS170 SIM
Jeff wrote: "they look like they should work, but the don't, how can I add them to my CMP folder, that is what is the correct model layout." I just noticed you sent this question two days ago. It
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Andy
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#90084
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