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Andrew
Joined: 30 Oct 2005
Posts: 3
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 Posted: Fri Sep 15, 2006 6:11 pm Post subject: How to model rectifiers |
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Good morning.
I'm improving to use PSUD. I have a question. What are the parameters used to model the rectifiers? How I can model a new rectifier? Thanks.. |
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duncanamps
Site Admin
Joined: 08 Mar 2003
Posts: 180
Location: Witham, UK
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| Posted: Fri Sep 15, 2006 11:45 pm Post subject: Re: How to model rectifiers |
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| Andrew wrote: | Good morning.
I'm improving to use PSUD. I have a question. What are the parameters used to model the rectifiers? How I can model a new rectifier? Thanks.. |
Hi Andrew, the model is described in the help file and is fairly simple. Please go to help -> Index -> Technical: Adding your own rectifiers
It represents a resistor in series with a perfect rectifier.
If you take VR as the rectifier voltage, the current is given as VFAC * VR ^ VLAW. This is an oversimplification as the resistor is in series, but you get the idea.
Despite the simple model, this covers vacuum tube rectifiers, solid state rectifiers, and even the snappy breakdown of mercury rectifiers.
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Duncan Munro |
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Andrew
Joined: 30 Oct 2005
Posts: 3
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| Posted: Sun Sep 17, 2006 7:57 pm Post subject: Thanks |
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| Oh, Thanks a lot!! Now I'll try...best regards!! |
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Andrew
Joined: 30 Oct 2005
Posts: 3
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| Posted: Sun Sep 17, 2006 8:50 pm Post subject: Excuseme, but... |
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Excuseme, but I can't understand. I downloaded the datasheet of %AR4 tube, and I tried to make calculations for parameters. Now, I have some problems. How I can calclate Vlaw? I thought that Iplate=Vplate^x, and so x=Log(Iplate)/Log(Vplate), the result give me an expression to exactly calculate the Iplate, with Vplate, but it isn't the same result there is in the help file.( my result is -1,7, help's result 1.5)Whi?
Vfac, and Vpiv, are ok.
Ipks and Ipkr, not. On the help file the numbers associated them are '99', but on the datasheet, I can find only the 'Steady-state peak plate current' and the 'Transient peak plat current', but nobody corresponds to the help's parameter! Why?
Thanks, best regards... |
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Kevinkr
Joined: 20 Nov 2004
Posts: 1
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| Posted: Mon May 28, 2007 10:46 pm Post subject: |
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Hi Duncan,
I added a model of the 6BY5 which is not accurate, the later one I added which is called 6BY5G should be a lot better. Is there any way you could remove the first one?
Thanks, Kevin |
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duncanamps
Site Admin
Joined: 08 Mar 2003
Posts: 180
Location: Witham, UK
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| Posted: Tue Jun 05, 2007 4:11 pm Post subject: |
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| Kevinkr wrote: | Hi Duncan,
I added a model of the 6BY5 which is not accurate, the later one I added which is called 6BY5G should be a lot better. Is there any way you could remove the first one? |
Hi Kevin, I have deleted the 6BY5 now.
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Duncan Munro |
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