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Are You think, measure inductance at full load ? Firstly, I use (https://katalog.we-online.de/pbs/datasheet/74435572200.pdf), then I use 22uH + 10 uH (https://katalog.we-online.de/pbs/datasheet/74435561100.pdf).
SRF of 22uH inductance is 10,5 MHz and for 10uH is 14 MHz.
HI everyone,
I work on my project buck-boost converter with IC LT8705.
Parameters:
Uin = 9 - 30 V DC
Uout = 19 V DC
Iout = 5 A
Scheme:
When I set frequency - fsw = 100 kHz and use inductance L = 10uH, everything work properly at full load 5A in buck region and boost region. This is waveform...
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