1. What is a Stepper Power Supply Voltage Calculator?

Definition: This calculator determines the required power supply voltage for stepper motors based on Ohm's Law.

Purpose: It helps electronics engineers and hobbyists properly power stepper motors for optimal performance.

2. How Does the Calculator Work?

The calculator uses Ohm's Law:

Where:

• \( V \) — Voltage (Volts)
• \( I \) — Current (Amperes)
• \( R \) — Resistance (Ohms)

Explanation: The current through the motor windings multiplied by the winding resistance gives the required voltage.

3. Importance of Proper Voltage Calculation

Details: Correct voltage ensures stepper motors operate efficiently without overheating or underperforming.

4. Using the Calculator

Tips: Enter the motor's rated current and winding resistance. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Where do I find the motor's current rating?
A: Check the motor's datasheet or specification plate for rated current per phase.

Q2: How do I measure winding resistance?
A: Use a multimeter to measure resistance across one motor winding when disconnected.

Q3: Should I use the calculated voltage exactly?
A: This gives the minimum required voltage. Many drivers can use higher voltages with current limiting.

Q4: What if my motor has multiple windings?
A: Calculate for one winding - all windings in a bipolar motor typically have the same specs.

Q5: Does this account for driver voltage drop?
A: No, add about 2-3V to compensate for driver circuitry voltage drops.