Split-Circuit Solar Panel Layout for Low-Voltage High Power

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Solution Overview

Problem

Traditional solar panel installations on vehicles like RVs are limited by roof space, restricting the number of panels and power generation, and integrating solar systems into shade structures like awnings requires balancing low voltage with high power output while managing a compact wire infrastructure.

Innovation Solution

The design incorporates split-circuit solar panels with two independent electrical circuits and bypass diodes, reducing voltage output while maintaining power generation, and simplifies mechanical and electrical assembly by allowing rotational symmetry and shared mounting components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If the number of solar panels is increased to generate more power, then power output increases, but voltage increases beyond safe operating ranges

Engineering Contradiction:
Improvepower outputVSAvoidvoltage safety
Core Design Contradiction:
PowerVSReliability

Solution Approach 1:

The patent divides each solar panel into two independent electrical circuits (first and second circuits) with separate positive and negative terminals. This segmentation allows the panel to maintain lower voltage output while still generating sufficient power, as the power output is the sum of both circuits rather than requiring higher voltage from a single circuit.

Inventive Principle:
Principle #1Segmentation

2Power

If the number of solar panels is increased to generate more power, then power output increases, but the area required for panel installation increases

Engineering Contradiction:
Improvepower outputVSAvoidinstallation area
Core Design Contradiction:
PowerVSArea of stationary object

Solution Approach 1:

The patent merges two independent electrical circuits into a single solar panel structure, effectively doubling the power generation capacity within the same physical area. By integrating both circuits into one panel rather than requiring two separate panels, the system achieves higher power output without proportionally increasing the installation area.

Inventive Principle:
Principle #5Merging (Combining)

3Power

If more electrical circuits are added to increase power output, then power generation increases, but wire complexity and space requirements increase

Engineering Contradiction:
Improvepower generationVSAvoidwire complexity
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

The patent combines multiple electrical circuits within a single panel structure with integrated terminals, reducing the need for extensive external wiring. The first and second circuits share common structural elements and can be interconnected through the panel's internal architecture, simplifying the overall wire infrastructure compared to having completely separate circuits.

Inventive Principle:
Principle #5Merging (Combining)

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

This approach enables increased power generation without increasing voltage, reduces wire complexity, and enhances robustness against reverse bias conditions, all within the constraints of compact awning spaces.

Implementation Method 1

Energy generating photovoltaic system

Methodology Applied
Scientific EffectPhotovoltaic effect: Photovoltaic Effect

Data Source

PatentUS11764727B2Photovoltaic panel design to enable low voltage and high output power in an energy generating photovoltaic system
Publication Date: 2023.09.19 XPONENT POWER INC
  • US11764727B2 patent drawing
  • US11764727B2 patent drawing
  • US11764727B2 patent drawing

AI summary

A solar system comprises at least one solar panel with a plurality of solar cells. The solar panels include first and second split-circuits to extract electrical energy from the solar panel. The first split-circuit includes solar panel wires that electrically connect, in series, the solar cells of the first split-circuit to extract electrical energy from the solar panel. Similarly, the second split-circuit includes solar panel wires that electrically connect, in series, the solar cells of the second split-circuit to extract electrical energy from the solar panel. The first and second split-circuits are configured to generate a voltage not to exceed a voltage specification, such as a voltage specification of 35 volts.