Hi, I want to try shunt surron x controller. I have depotted it. Here are pictures :
https://endless-sphere.com/forums/viewtopic.php?f=10&t=89902&start=5450
So what i found are only two hall sensors on phases, so they are calculating battery amps from them.
I measured sensitivity of thoose sensors and on OPAMP output (MCU input) there is 5mV/1A sensitivity, directly on hall sensor is sensitivity 4,2mV/A . Sensitivity is calculated to be near saturation volts of halls. So i need to change magnetic circuit - weak field going throught halls for more amps. But now controller draws 60A battery current, and i have measured phase amps peak aroud 350A. So when i modify halls, it will lineary add phase amps and battery current ? So if i want 120A battery - phase will by 700A ? Is it possible to only push more battery amps because 700Amps is a huge current and iam worry about fets, and surron motor can saturate at this current etc.
Thanks for advise.
https://endless-sphere.com/forums/viewtopic.php?f=10&t=89902&start=5450
So what i found are only two hall sensors on phases, so they are calculating battery amps from them.
I measured sensitivity of thoose sensors and on OPAMP output (MCU input) there is 5mV/1A sensitivity, directly on hall sensor is sensitivity 4,2mV/A . Sensitivity is calculated to be near saturation volts of halls. So i need to change magnetic circuit - weak field going throught halls for more amps. But now controller draws 60A battery current, and i have measured phase amps peak aroud 350A. So when i modify halls, it will lineary add phase amps and battery current ? So if i want 120A battery - phase will by 700A ? Is it possible to only push more battery amps because 700Amps is a huge current and iam worry about fets, and surron motor can saturate at this current etc.
Thanks for advise.