Input Filter In-Rush Current Limit Design (Slow Start Circuit)

Published: 30 May 2022
on channel: Robert Bolanos
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In this video, I show a design procedure in how to design an In-Rush Current limit circuit (also know as slow start). In an input filter, we usually add capacitors to the input filter to attenuate the SMPS current from corrupting the input bus or input voltage. However, adding more capacitors to the input filter will increase the in-rush current spike. To lower the in-rush current, you need to add a slow start circuit, or an in-rush current limit. Questions, request for TopSPICE files, and comments can be sent to [email protected]. If you like this video, please subscribe, give thumbs up and share.


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