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#1 Oct 28, 2022
GSXR38400
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LMR3364 simulation

Hello,

I'm a beginner with PSpice and for may application I need to simulate a converter DC/DC. After finding the circuit and calculating the values ​​normally I must have -5V at 0.7A output from this component but nothing works.

Do you have any idea where my mistakes come from ? Thank you for your helps

Regards

 

Wed, 2022-12-14 23:41
AshishG
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Hi,

We ahve analyzed the circuit and it looks fine. Only Mistake I could figure out is the value of output capacitor C7 ( as seems from snapshot).

If you want value to be 88uF, then simply put it as 88uF. Here 4x22uF expression is not denoting multiplication and hence wrong results.

Change it to 88uF and you will see -5V output voltage.

 

Also you can take reference from LMR33640ADDA_TRANS reference design available in Pspcie for TI.

 

Regards

Ashish Gupta

Thu, 2022-12-15 11:36
GSXR38400
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Hi,

Thank you for your answer, about the capacitor I think that means 4 capacitor for the value 22uF in in parallel. Where you see I can take reference from LMR33640ADDA_TRANS reference design available in Pspcie for TI ? Can you show me the way to open this file Please ?

Thank you

Yann DO 

Fri, 2022-12-16 07:18
GSXR38400
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Hi,

After searching a bit finally I found the simulation model. I have this windows

  

Now I'll see how it works.

Thu, 2023-03-09 04:53
superman1
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Hi, you can try tiny fishing to solve the problem

Sun, 2023-03-19 03:32
sowaro4784@ezgi...
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Mon, 2023-03-20 00:53
sowaro4784@ezgi...
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Tue, 2023-03-21 02:25
sowaro4784@ezgi...
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Tue, 2024-03-05 03:59
louisewig
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