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Q&A capacitor to overcome voltage source limitation [closed]

Hello,i need to drive 5 mosfets as shown below. Each mosfet draws 15A when the pulse opens the mosfet. My power supply is gives the 48V but only 3.3A,If I understand correctly I need to put very...

0 answers · posted 6mo ago by yefj‭ · closed 6mo ago by Olin Lathrop‭

Question capacitor limitation

#2: Question closed by

Olin Lathrop‭ · 2024-05-13T20:14:10Z (6 months ago)

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#1: Initial revision by

yefj‭ · 2024-05-13T17:55:14Z (6 months ago)

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capacitor to overcome voltage source limitation

Hello,i need to drive 5  mosfets as shown below.
Each mosfet draws 15A when the pulse opens the mosfet.
My power supply is gives the 48V but only 3.3A,If I understand correctly I need to put very high decoupling capacitors at the voltage source  so I will have in that short period of time the 5*15=75A .

My V4 power supply in real life can supply only 4A as shown in the link and datasheet below.
When i put a 10uF capacitor i cant see any higher amount of current.
how do i properly simulate this capacitor phenomena In LTspice
Thanks.



https://www.meanwell-web.com/content/files/pdfs/productPdfs/MW/HRPG-150/HRPG-150-spec.pdf

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capacitor limitation

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