1. What is DC Motor Output Power?

The output power of a DC motor represents the mechanical power delivered by the motor shaft. It's calculated as the product of torque and angular velocity, and is a key parameter in motor selection and performance evaluation.

2. How Does the Calculator Work?

The calculator uses the DC motor output power formula:

Where:

• \( P_{out} \) — Output power (Watts)
• \( T \) — Torque (Newton-meters)
• \( \omega \) — Angular speed (radians per second)

Explanation: The formula shows the direct relationship between torque and speed in determining a motor's mechanical power output.

3. Importance of Output Power Calculation

Details: Calculating output power helps in selecting the right motor for an application, evaluating performance, and ensuring the motor isn't overloaded.

4. Using the Calculator

Tips: Enter torque in Nm and angular speed in rad/s. Both values must be positive numbers. The calculator will compute the output power in watts.

5. Frequently Asked Questions (FAQ)

Q1: How do I convert RPM to rad/s?
A: Multiply RPM by 2π/60 (1 RPM = 0.10472 rad/s)

Q2: What's the difference between input and output power?
A: Input power is electrical (V×I), output is mechanical. The difference represents losses (efficiency = Pout/Pin).

Q3: What are typical output power ranges?
A: DC motors range from fractional watts (small hobby motors) to thousands of watts (industrial motors).

Q4: How does voltage affect output power?
A: Higher voltage typically allows higher speed and power output, up to the motor's design limits.

Q5: What if I only know the speed in RPM?
A: First convert RPM to rad/s (multiply by 0.10472), then use the calculator.