I observed relative high current and therefore relative high temperature on my driver board when the motor was not spinning (Target : 0.00). The reason for that was - so far i investigated - that there was still some pwm signal on the driver. I fixed that temporarily by adding following code to the …

Are you in openloop mode? High current is totally normal and expected in openloop. The current is holding the rotor in place. If you want zero current at zero velocity, I’d suggest changing motor.voltage_limit inside loop(). You can read motor.shaft_velocity and programmatically decide how much vol…

Yeh, this is not a solution but it is a good starting point. Basically at this point we are centering our output voltage around half of the power supply (duty cycle 0.5) And that is why you see some pwm even when the voltage_q is in 0. In theory duty cycle 0.5 on all three phases will result in pw…

Thanks for the fast and detailed response! I use 6pwm in closed loop with voltage control mode (G431-ESC with hall sensors). In rare cases t’s between 30-40mA. In most cases it’s 60-80mA. I also have observed up to 150mA in few cases. So far i havn’t found out what is the reason for this big range…

Hey @erwin74 , We do not support this feature at the moment. But this is something that is important to implement and we should definitely include it in next release. I mean to be able to switch the phases off completely. Could you please (if you have time) create a github issue so that we do not …

github issue added. I use the stm32G431CB processor with following pins: #define PHASE_UH PA8 #define PHASE_VH PA9 #define PHASE_WH PA10 #define PHASE_VL PA12 #define PHASE_UL PC13 #define PHASE_WL PB15 {PA_8, TIM1, STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP…

[image] erwin74: github issue added. Thanks. [image] erwin74: just one timer, which should be perfectly synchronized?! Yes, I would say they are synchronized as well. We will have to look into this more carefully. Maybe @Owen_Williams could look into it with a scope? I will check fo…

I am also wondering if this problem as something to do with the question @Juxo has asked few days ago. https://community.simplefoc.com/t/ringing-at-gpio-and-mosfet/384

I don’t know if it has anything to do with it either. But my DRV8302 board was destroyed with only 2A current consumption. One of the shunt resistors went up in smoke. I’m currently testing my motor with an Infineon development board. There is also a small oscillation of the output voltage here, bu…

@erwin74 Extremely hacky and untested. I don’t think it is any better than your approach apart from not changing library code. void loop() { static float last_voltage_limit = 0; if (abs (motor.shaft_velocity_sp) < 0.01) { last_voltage_limit = motor.voltage_limit; motor.v…

Last days couldn’t find time for it. Today i implemented your (Antun) approach, and i works as expected - thanks! I also looked into the signal with scope: all signals are fine, no ringing observed (just little engaging, but this is normal) like Juxo did on his configuration all 3 phases are per…

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High current when motor isn't spinning

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