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Variable input and Constant output(Sepic)

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Dear mtwieg,

Hope this waveform understands you.

Yellow waveform is VC pin
Green waveform is Sence pin.

Check the waveform. My sense pin voltage goes down negative.
 

Attachments

  • VC and Sence Pin waveforms.png
    VC and Sence Pin waveforms.png
    40.2 KB · Views: 50

Here my load is 22 Ohm,10W resistor & 22 Ohm,5W resistor in series.
 

Hi..

Can anyone suggest me how to ripple free my output waveform?? And how to rectify the voltage drop??

Here am attaching the waveforms of output with and without load...

If my input is varying my output also varying little..

Kindly go through this waveforms..
 

Attachments

  • Output voltage Without Load.png
    Output voltage Without Load.png
    45 KB · Views: 52
  • Output Waveform with Load.png
    Output Waveform with Load.png
    50.9 KB · Views: 53

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