1. What is Brushless DC Motor Torque?

Brushless DC motor torque represents the rotational force produced by the motor. It is directly proportional to the current flowing through the motor windings and the motor's torque constant.

2. How Does the Calculator Work?

The calculator uses the torque equation:

Where:

• \( T \) — Torque (Nm)
• \( Kt \) — Torque constant (Nm/A)
• \( I \) — Current (A)

Explanation: The equation shows that motor torque is directly proportional to both the torque constant and the current supplied to the motor.

3. Importance of Torque Calculation

Details: Accurate torque calculation is essential for motor selection, system design, and ensuring proper performance in applications such as robotics, drones, and industrial automation.

4. Using the Calculator

Tips: Enter torque constant in Nm/A and current in Amperes. Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is the torque constant (Kt)?
A: The torque constant is a motor-specific parameter that relates the current to the torque output. It is typically provided in the motor's datasheet.

Q2: How does temperature affect torque calculation?
A: Temperature can affect motor winding resistance and magnetic properties, which may slightly alter the torque constant and overall torque output.

Q3: Can this formula be used for all motor types?
A: This formula is specific to brushless DC motors. Other motor types (such as brushed DC or AC motors) have different torque equations.

Q4: What is the relationship between torque and speed?
A: In brushless DC motors, torque and speed have an inverse relationship - as speed increases, available torque typically decreases due to back EMF.

Q5: How accurate is this calculation?
A: The calculation provides theoretical torque based on ideal conditions. Actual torque may vary due to factors like efficiency losses, temperature, and motor design.