fheat2.md
fugu2 board mounted on heat-sink

heat-sink


160 x 83 x 25 AK-EL83-160
6.6 °C/W ? ( <![CDATA[]]>https://www.heatsinkcalculator.com/heat-sink-size-calculator.html<![CDATA[]]> )


Inductor (2s-KS184-125A-d118-s10-n12)


core: 2s KS184-125A
coil: w210 cu, 1.18mm (schneitec), 10 strands (used 2m wire per strand)


Caps:


Cin: 2p Rubycon ZLH 470µF 100V (33mΩ)
Cout: Samyoung NXA 470µF 100V (32mΩ)


Switches:


HS: 2p IPP055N08NF2SAKMA1 (Rg+=4.7Ω, Rg-=0)
LS: IPP022N12NM6AKSA1 Rg=4.7Ω


Measurements:


pin=835.81 W, pout=821.10 W, ploss=-1.75%  !!!  (TODO verify, calibrate shunts?)


Il=30A ipp=12.2A

961.58 W 942.78 W ploss=1.95%


I=34.3A, Ipp=13.6A







  





  
clean signals without inverter







  





  
Heavy noise on Iout with cheap china inverter (idle)