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3 votes
1 answer
204 views

Inductor magnetic field collapses during switching?

SEE EDITS BELOW I'm running into some problems with my Buck converter design. During the switching period the inductors magnetic field seems to collapse, which generates some large voltage peaks. That'...
Daan32's user avatar
  • 33
2 votes
1 answer
114 views

How to choose the right inductor for buck converter with LM5143A-Q1? (from TI)

While working on my first voltage regulator circuit I got stuck at calculating the inductor value... The IC is LM5143A-Q1 from Texas Instruments, and according to the datasheet, the formulas for ...
Mito's user avatar
  • 411
0 votes
3 answers
64 views

Current and voltage value before inductor pin in buck converter

In buck converter we know that pure DC current will be after inductor pin. But what will be the current/voltage value before it. Let’s take an example, the buck converter circuit with 12 V input to 3....
Selva97's user avatar
  • 543
6 votes
3 answers
2k views

Buck Converter dies unpredictably upon connecting power

I made a PCB for an ESP32-based solenoid controller that is powered by a 24V DC Jack. I'm using an AP63205 Buck Converter to step that input down to 5V DC, and then a linear 3V3 LDO to power the ESP32....
George Troulis's user avatar
1 vote
1 answer
92 views

Buck converter inductor calculation doesn't agree with typical application schematic

Im trying to play around with some buck converters and have found one that I might want to make a circuit with. The IC I want to use is the the TPS53125 in QFN package. It's a dual output buck ...
Mercury's user avatar
  • 127