Zener-Controlled LED Array Circuit for Balanced Odd-Even Illumination

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Solution Overview

Problem

Existing LED lighting systems face challenges in achieving balanced voltage and current distribution across arrays with odd and even numbers of LEDs, leading to inconsistencies in light intensity and suboptimal luminosity.

Innovation Solution

A Zener diode-based control circuit is employed to regulate voltage and current flow in LED arrays, using transistors and resistors to optimize illumination by balancing the load across LED blocks, even or odd in number, and combinations thereof.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If LED arrays use odd numbers of LEDs, then adaptability and versatility are improved, but voltage drop and current draw become unbalanced leading to inconsistent light intensity

Engineering Contradiction:
Improveadaptability to modern light standardsVSAvoidlight intensity consistency
Core Design Contradiction:
Adaptability or versatilityVSIllumination intensity

Solution Approach 1:

A Zener diode is introduced as an intermediary component in the circuit to regulate voltage and balance current distribution across LED arrays with odd numbers of LEDs. The Zener diode maintains a stable reference voltage that compensates for the inherent imbalances in odd-numbered LED configurations, ensuring uniform light intensity across all LEDs regardless of array configuration.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The circuit dynamically adjusts electrical parameters (voltage and current) across different LED positions using transistor-based current control. By changing the current parameter individually for each LED or LED block, the system compensates for voltage drops and ensures consistent luminosity output across odd-numbered arrays that would otherwise exhibit imbalance.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If LED arrays use fixed length incandescent tubes, then manufacturing simplicity is maintained, but length and versatility are limited

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidlength adaptability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The LED lighting system is divided into modular LED blocks or segments that can be independently controlled and configured. Each block contains multiple LEDs with individual current control, allowing the system to be assembled in various lengths and configurations while maintaining manufacturing simplicity through standardized modular units.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system transitions from fixed-length incandescent tubes to dynamically configurable LED arrays where individual LED blocks can be selectively activated or deactivated. This dynamic control allows the same hardware platform to adapt to different length requirements and lighting scenarios while maintaining ease of manufacture through standardized components.

Inventive Principle:
Principle #15Dynamics

3Device complexity

If conventional LED control circuits are used, then device complexity is minimized, but voltage and current regulation precision is insufficient for odd-numbered arrays

Engineering Contradiction:
Improvecircuit complexityVSAvoidvoltage and current regulation precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The control circuit incorporates feedback mechanisms that monitor voltage and current levels across each LED block and adjust control signals accordingly. This feedback loop enables precise regulation of electrical parameters to compensate for variations in LED characteristics and array configuration, achieving high regulation precision without excessive circuit complexity through intelligent control algorithms.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

Transistors are used as intermediary control elements between the power source and LED blocks, providing precise current regulation. The transistor-based current control acts as a variable resistor that can be dynamically adjusted to balance current distribution across odd-numbered LED arrays, achieving high precision voltage and current regulation with relatively simple circuit architecture.

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution ensures consistent and optimized illumination by maintaining a 10% or less variation in light output across LED arrays, even with varying lengths and numbers, enhancing efficiency and luminosity.

Implementation Method 1

at least one Zener diode that offers significant improvement in regulating the luminosity of a plurality of LEDs connected together

Methodology Applied
Scientific EffectZener breakdown: Avalanche Breakdown

Implementation Method 2

a plurality of light emitting diodes (LEDs) connected in arrays and blocks

Methodology Applied
Scientific EffectLight emitting diode effect: Light Emitting Diode

Implementation Method 3

light emitting diodes (LEDs) connected in arrays and blocks for improved efficiency, luminosity, and power management

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Data Source

PatentUS12526891B2Zener transistor controlled LED array
Publication Date: 2026.01.13 VODE LIGHTING LLC
  • US12526891B2 patent drawing
  • US12526891B2 patent drawing
  • US12526891B2 patent drawing

AI summary

The present disclosure relates generally to an electronic control circuit and means to provide balanced power to a plurality of light emitting diodes (LEDs) connected in arrays for improved efficiency, luminosity and power management. The present disclosure further relates to the use of an improved multiple transistor-based electronic control circuit offering significant improvement in regulating voltage and current flow to a plurality of LEDs connected together in various combinations of serial blocks and parallel blocks. The present disclosure further relates to the use of a Zener diode that offers significant improvement in regulating the luminosity of a plurality of LEDs connected together in various combinations of serial blocks and parallel blocks, wherein the LED blocks contain an arrangement of an even number of LEDs, an odd number of LEDs, as well as even and odd numbers of blocks combined in serial and parallel arrangement, and combinations thereof.