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I want simualtion program

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ragab2010

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hi
can any one tell me about program for simulation electric circuit . as the real
I using proteus but the value of current(Ic of BJT) usually false ..when implement circuit on test board.. :(
I want actual simulation. to go t buy actual component(as value of resistance )..
help me please. :)
 

Nothing wrong with simulator program .... you need just understanding what is simulator and how its works.
 

Did you hear of the free simulator from Linear Technology, called LTspice?

There is also a yahoo group for it to answer your questions (as here).
**broken link removed**

Note:
As yura717 said, the simulator gives always the right results based on the component's models.
If the component we test is not modeled correctly on the simulator, we get results from the simulator different from what we get from the test.
 
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simulator use resistors with 0% tolerance but real worl resistors have 1%,5%,10%,20% tolerance ....
Simulator can save a lot of time for you ... but its cannot replace your test board ....
 
ragab2010 said:
can any one tell me about program for simulation electric circuit . as the real
I using proteus but the value of current(Ic of BJT) usually false ..when implement circuit on test board.. :(
I want actual simulation. to go t buy actual component(as value of resistance )..
Click to expand...

Some of the simulation packages, typically those which concentrate on analog design like Orcad, allow a Monte Carlo simulation to be performed.

Essentially, the impact of a design is analyzed as various component values are deviated from their specified values.

For example, what would the impact be on a passive filter if R1 and R2 were allowed to deviate +/-10%.

Or what would the impact be on the same design if C1 and C2 were allowed to deviate +/-30%.


BigDog
 
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