universal bridge

simione civoniceva — Tue, 24 Nov 2009 05:36:02 -0500

Dear All
Below is a block parameters for Universal Bridge, can anyone tell me if there is any proble with it and what i can do to correct it

Number of bridge arms: 3
Snubber resistance : 1e5
snubber capacitance : inf
Power Electronics device: IGBT/Diodes
Ron (ohms) : 1e-3
Forward Voltage : [0 0]
[Tf(s) , Tt(s)] : [1e-6, 2e-6]
Measurements : All voltages and current

Re: universal bridge

Frank W. — Wed, 25 Nov 2009 09:15:22 -0500

"simione civoniceva" <s_civoniceva@yahoo.com> wrote in message <hefrc2$q98$1@fred.mathworks.com>...
> Dear All
> Below is a block parameters for Universal Bridge, can anyone tell me if there is any proble with it and what i can do to correct it
>
> Number of bridge arms: 3
> Snubber resistance : 1e5
> snubber capacitance : inf
> Power Electronics device: IGBT/Diodes
> Ron (ohms) : 1e-3
> Forward Voltage : [0 0]
> [Tf(s) , Tt(s)] : [1e-6, 2e-6]
> Measurements : All voltages and current

Hi,
I do not know what impact the zero values of the Forward voltage have on the simulation. I always used values from datasheets and the simulations turned out well. Concerning the snubber capacitance value I suggest looking at the help for the universal bridge in which useful hints are given.

Regards
Frank

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