Sorry for my bad english, i'm french.
Ok, I want to design my own BLDC (brushless motor sensorless) controller, but it's litle bit hard for me... (mosfet explosions, sparks in my home workshop, etc... )
This is my design:
It work, my motor spin with switching frequency, but, voltage of output U , V or W are always 16V (voltage of my battery). I don't understand, because if I put LED on 74HC08 output, luminosity (and voltage) is almost proportional to duty cycle !
Duty cycle = 0% U , V or W = 0V
Duty cycle = 1% U , V or W = 16V
Duty cycle = 100% U , V or W = 16V
Even by removing the capacitors 100nF on U V W, the same...
Put 10uF on U V W, the same too.
Put resistor 560ohms in serie on mosfet H drain -> 15V...
Can you help me please ?