About jcysyk

jcysyk · 2023-08-14

I want to use the STSPIN32G4 for an application with a motor voltage of 6-8V. Has anyone ever ran with this low of a motor voltage. The specifications list the minimum motor voltage of 5.5V, so I believe it should be possible. However, the lowest b...

jcysyk · 2021-12-13

When I test with a torque meter, I'm calculating roughly 2x the torque as compared to the torque meter. Is there something I'm missing in my calculation?

jcysyk · 2023-08-15

So to close out this thread, for anyone else interested in running at 6V. Using the eval board (STSPIN32G4NH) I varied the motor voltage and measured VCCVm [V]VCC (buck) [V] 1210.5 119.6 108.7 97.8 86.9 76.0 64.9motor controlfailed66 (tied to Vm)mot...

jcysyk · 2023-08-14

Thanks for the response. Yes, the buck-converter is only used for the gate drivers. The lowest setting for the buck-converter is 8V, but I'm not sure what will happen if I drive it with 6V - a lower stable buck voltage, and unpredictable voltage, o...

jcysyk · 2021-12-13

My mistake, looks like I had a problem with my setup. The calculated Torque using the above equation matches the measure torque

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STSPIN32G4 with motor voltage of 6V

I would like to measure motor load torque using the FOC Iq current. Am I correct that torque should equal IqKt. I am using the ST Motor Control SDK 5.4. I have characterized the Kt of my motor. I calculate Iq [mA] = Iq_s16 VDD [mV/(RshuntGain65536)

Re: STSPIN32G4 with motor voltage of 6V

Re: STSPIN32G4 with motor voltage of 6V

Re: I would like to measure motor load torque using the FOC Iq current. Am I correct that torque should equal IqKt. I am using the ST Motor Control SDK 5.4. I have characterized the Kt of my motor. I calculate Iq [mA] = Iq_s16 VDD [mV/(RshuntGain65536)

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STSPIN32G4 with motor voltage of 6V

I would like to measure motor load torque using the FOC Iq current. Am I correct that torque should equal Iq*Kt. I am using the ST Motor Control SDK 5.4. I have characterized the Kt of my motor. I calculate Iq [mA] = Iq_s16 * VDD [mV/(Rshunt*Gain*65536)

Re: STSPIN32G4 with motor voltage of 6V

Re: STSPIN32G4 with motor voltage of 6V

Re: I would like to measure motor load torque using the FOC Iq current. Am I correct that torque should equal Iq*Kt. I am using the ST Motor Control SDK 5.4. I have characterized the Kt of my motor. I calculate Iq [mA] = Iq_s16 * VDD [mV/(Rshunt*Gain*65536)

I would like to measure motor load torque using the FOC Iq current. Am I correct that torque should equal IqKt. I am using the ST Motor Control SDK 5.4. I have characterized the Kt of my motor. I calculate Iq [mA] = Iq_s16 VDD [mV/(RshuntGain65536)

Re: I would like to measure motor load torque using the FOC Iq current. Am I correct that torque should equal IqKt. I am using the ST Motor Control SDK 5.4. I have characterized the Kt of my motor. I calculate Iq [mA] = Iq_s16 VDD [mV/(RshuntGain65536)