Surf PI Pro

[paku]

The Problem When I Connect the Coil IRF9640 Going Hot
Witout Coil The IRF9640 is normal

[gdogg]

I attached a heat sink on IRF9640

[paku]

the irf9640 it can not be to hot if the board dont have problem

[paku]

thanks for answering my questions
Now My Board Is Working

[kenny444]

Hello for the benefit of others, would you write what your problem was and how you found it? thank you.

[paku]

The Board Jumper Is Not Connected

[bernte_one]

and now you ake a goood coil and Show us your results

best regards

[paku]

yea i am forgot i must share here!

[paku]

i have try coil for surfxx
mono coil size 18CM my inductance is 0.210mh
wire thiknes is 0.49
Resistance 02.0
1euro coin i get 30cm

[bernte_one]

i have try coil for surfxx
mono coil size 18CM my inductance is 0.210mh
wire thiknes is 0.49
Resistance 02.0
1euro coin i get 30cm

yes ok thats goood and enough - stable 30cm

got some very cool shells from stefan stefanov (mikron)
if you can get them try them
https://sites.google.com/site/detekt...cm%20Spule.JPG

[paku]

yes ok thats goood and enough - stable 30cm

got some very cool shells from stefan stefanov (mikron)
if you can get them try them
https://sites.google.com/site/detekt...cm%20Spule.JPG

huhuh yea thanks
bernte_one

[jladre]

Can i used a polarized capacitor in C7 which is 1uf stacked capacitor ?? Or is ther any alternative for it? Because I can't find a stacked capacitor in my place.

[kenny444]

Hello if your asking about the Surf PI 1.2 pcb capacitor C7 which is 470nF, which is small and quick when passing AC, using a 1uF will take the signal approximately twice as long to charge and discharge the cap, I do not think it will be good.

[jladre]

Hi kenny444.. i mean the c7 of surf xx..anyway i made my surf xx working now..i just used an electrolytic cap instead of 1uf stacked cap..

[paku]

With LED Detection