1. What is an LED in Parallel Calculator?

Definition: This calculator determines the total current and voltage requirements for multiple LEDs connected in parallel.

Purpose: It helps electronics hobbyists and engineers properly design LED circuits with appropriate power supplies.

2. How Does the Calculator Work?

The calculator uses these formulas:

Where:

• \( I_{total} \) — Total current (amperes)
• \( I_{LED} \) — Current per LED (amperes)
• \( n \) — Number of LEDs
• \( V_{total} \) — Total voltage (volts)
• \( V_{LED} \) — Voltage per LED (volts)

Explanation: In parallel circuits, current adds up while voltage remains equal to a single LED's voltage.

3. Importance of Parallel LED Calculations

Details: Proper calculations ensure your power supply can handle the current load while providing the correct voltage to each LED.

4. Using the Calculator

Tips: Enter the current per LED (typically 0.02A for standard LEDs), voltage per LED (typically 2-3.5V), and number of LEDs. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why does current add up in parallel?
A: Each parallel branch draws its own current from the power supply, so total current is the sum of all branches.

Q2: Why does voltage stay the same?
A: All parallel components receive the same voltage potential from the power source.

Q3: Do I need current limiting resistors?
A: Yes, each LED branch should have its own current limiting resistor to prevent overcurrent.

Q4: What's the maximum number of LEDs I can connect?
A: Limited by your power supply's current capacity and thermal considerations for heat dissipation.

Q5: Can I mix different LED types?
A: Not recommended in parallel as different forward voltages can cause uneven current distribution.