A Super Long Constant Current LED Strip works by providing a regulated and constant current to the LEDs along its length, ensuring uniform brightness and color consistency. To better understand how it works, let’s break down the key components and principles involved, along with a simplified calculation diagram:

Components Involved:

1. LEDs: The individual light-emitting diodes are the light sources. They emit light when a current passes through them.

2. Constant Current Driver: This is the power supply or driver that provides a regulated and consistent current to the LEDs.

3. Circuit Design: The LED strip is designed with sections or segments, each containing a series of LEDs. These sections are typically connected in parallel to the constant current driver.

Principle of Operation:

1. Current Regulation: The constant current driver ensures that a specific current level (e.g., 20 mA) is maintained throughout the LED strip. This means that the driver adjusts the voltage it supplies to compensate for changes in LED characteristics and temperature, keeping the current constant.

2. Voltage Adjustment: Because the forward voltage drop across LEDs can vary, the constant current driver adjusts its output voltage to provide the necessary voltage for the desired current across the entire length of the strip.

3. Parallel Connection: The sections or segments of the LED strip are connected in parallel to the constant current driver. This parallel configuration allows each section to receive the same regulated current, ensuring uniform brightness.

Calculation Diagram:

Let’s illustrate this with a simplified example. Suppose we have a Super Long Constant Current LED Strip with the following specifications:

• Maximum length: 100 meters
• Constant current: 20 mA (0.02 A)
• Forward voltage drop per LED: 3.0 V

  In this example, each LED has a forward voltage drop (Vf) of 3.0 V, and we have 10 LEDs in series within each section.

  Calculations:

  1. Total forward voltage drop per section (Vf_total): 10 LEDs × 3.0 V = 30 V
  2. Total current per section (I_total): 20 mA (0.02 A)
  3. Voltage supplied by the constant current driver (V_driver): Vf_total = 30 V
  4. Power per section (P_total): V_driver × I_total = 30 V × 0.02 A = 0.6 W

  In this simplified example, each section of the LED strip is designed with the necessary voltage drop (Vf_total) and constant current (I_total) specifications to achieve uniform brightness and consistent performance across the entire length of the strip.