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problem with isis 7 professional proteus simulation..

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panjangsangat

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i have build a circuit and when simulate the problem occur.. can someone clarify me what the problem actually? by the way, the black circle is 12v dcmotor..
 

the problem is the time step is too small... how can ireduce the minimum time step?
 

It is one of the parameters of the .TRAN statement. I don't know your simulator so I cannot direct you to it, but wherever you set up the transient analysis, it is likely to be there.

There may also a .options MINTIMESTEP=xxxx statement you can set as instead. The name of that may vary between different variants of Spice - check your documentation under ".options".

Keith.
 

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