Jun 14, 2019 #1 S satiz Member level 5 Joined Jun 9, 2013 Messages 87 Helped 3 Reputation 6 Reaction score 3 Trophy points 1,288 Activity points 1,999 Hi guys, Most of the development boards has Pi filter at the input side, and they are using 10uf cap and 4.7uh Inductor. How they got those value and what is the cutoff frequency for the filter.
Hi guys, Most of the development boards has Pi filter at the input side, and they are using 10uf cap and 4.7uh Inductor. How they got those value and what is the cutoff frequency for the filter.
Jun 14, 2019 #2 FvM Super Moderator Staff member Joined Jan 22, 2008 Messages 52,400 Helped 14,748 Reputation 29,778 Reaction score 14,093 Trophy points 1,393 Location Bochum, Germany Activity points 298,003 Most of the development boards has Pi filter at the input side, and they are using 10uf cap and 4.7uh Inductor. Click to expand... Unlikely. Referring to a specific board would be useful. I can just guess that you are asking about DC/DC converter dev boards. Without specifying voltage, current, source and load impedance it's a pointless question.
Most of the development boards has Pi filter at the input side, and they are using 10uf cap and 4.7uh Inductor. Click to expand... Unlikely. Referring to a specific board would be useful. I can just guess that you are asking about DC/DC converter dev boards. Without specifying voltage, current, source and load impedance it's a pointless question.
Jun 14, 2019 #3 S satiz Member level 5 Joined Jun 9, 2013 Messages 87 Helped 3 Reputation 6 Reaction score 3 Trophy points 1,288 Activity points 1,999 Hi thanks for your reply here is more details, Your Guess is right this is input side of the development board. Input is 12V/1A load is 3.3V/500mA
Hi thanks for your reply here is more details, Your Guess is right this is input side of the development board. Input is 12V/1A load is 3.3V/500mA
Jun 14, 2019 #4 W wwfeldman Advanced Member level 4 Joined Jan 25, 2019 Messages 1,101 Helped 231 Reputation 461 Reaction score 297 Trophy points 83 Activity points 8,554 an explanation and equations: https://electronicscoach.com/pi-filter.html