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Error in simulating MC34063A on Multisim 13.0

Error in simulating MC34063A on Multisim 13.0

‎10-06-2014 12:06 AM

Hello All!

 

I am trying to simulate a 1.5A peak Boost/Buck/Inverting switching regulator, MC34063A on Multisim 13.0 according to it's datasheet. I found all the components on Multisim but I still do not get required output. Could someone please take a look at the simulation model and let me know the problem.

 

I have attached a screenshot of the circuit where the regulator is used as a step-up converter, input voltage of 12V must be converted to 28V ( according to the datasheet), but I get a 11.908V output instead.

 

 

Thanks a lot!

 

 

 

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