Does the below BLDC motor have the same Peak Torque(short time) at the rated speed?
- Rated_Voltage: 24V
- Rated_Speed: 4000RPM
- Back_EMF_Constant: 3.7Vp/KRPM
- Peak_Current: 4.4A
- Peak_Torque: 20oz-in
- Resistance: 1.5Ohms
- Inductance: 2mH
Here is my calculation:
- VOLTAGE = Rated_Speed * Back_EMF_Constant + Peak_Current * Resistance
If the above "VOLTAGE" exceeds Rated Voltage, then the motor can not exert Peak Torque(20oz-in) at the rated speed.
For the above motor:
- 21.4V = 4000RPM * 3.7Vp/KRPM + 4.4A * 1.5Ohms
Because 21.4v is less than Rated Voltage(24v), so it can exert the same Peak Torque at the rated speed.
Is my calculation correct ?