Integrated LED Device with Series Rectifier Chip

Solution Overview

Problem

Existing light emitting diode (LED) devices require external rectifier diodes for rectification, resulting in complex structures, large size, and high costs, limiting their usability and functionality.

Innovation Solution

Integration of a rectifier diode chip and a light emitting diode chip in series with a metal wire within a compact epoxy resin packaging, allowing for direct integration of rectifier functions into the LED device, enabling half-wave, full-wave, and bridge rectification without external circuits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If external rectifier diodes are connected to LED devices, then rectifier function is achieved, but device structure becomes complex and size increases

Engineering Contradiction:

Improverectifier functionVSAvoidstructure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the rectifier diode chip and light emitting diode chip into a single integrated device package. The rectifier diode chip (with anode and cathode) and the light emitting diode chip are connected through metal wires inside a common packaging shell, merging two previously separate components into one unified device that provides both rectification and light emission functions simultaneously.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated LED device serves multiple functions: it acts as both a light source and a rectifier. By incorporating the rectifier diode chip within the same package as the light emitting diode chip, the device can perform AC-to-DC conversion while simultaneously emitting light, eliminating the need for separate external rectifier circuits.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If external rectifier diodes are connected to LED devices, then rectifier function is achieved, but manufacturing cost increases

Engineering Contradiction:

Improverectifier functionVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent combines the rectifier diode chip and light emitting diode chip into a single integrated device package. The rectifier diode chip (with anode and cathode) and the light emitting diode chip are connected through metal wires inside a common packaging shell, merging two previously separate components into one unified device that provides both rectification and light emission functions simultaneously.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated LED device serves multiple functions: it acts as both a light source and a rectifier. By incorporating the rectifier diode chip within the same package as the light emitting diode chip, the device can perform AC-to-DC conversion while simultaneously emitting light, eliminating the need for separate external rectifier circuits.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If rectifier diode chip and light emitting diode chip are connected in series, then reverse voltage endurance increases, but device structure becomes more complex

Engineering Contradiction:

Improvereverse voltage enduranceVSAvoidinternal connection complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the rectifier diode chip and light emitting diode chip into a single integrated device package. The rectifier diode chip (with anode and cathode) and the light emitting diode chip are connected through metal wires inside a common packaging shell, merging two previously separate components into one unified device that provides both rectification and light emission functions simultaneously.

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

The integrated LED device provides a compact, cost-effective solution that eliminates the need for external rectifiers, enabling normal light emission and rectification while withstanding higher reverse voltages, and allowing for easy plug-and-play functionality with enhanced reliability.

Implementation Method 1

a light emitting diode device comprises a base and a cover packaging of a rectifier diode chip and a light emitting diode chip connecting in series with a metal wire

Methodology Applied

Scientific EffectLight emitting diode effect: Light Emitting Diode

Implementation Method 2

said light emitting diode chip can emit a source of light whose wavelength ranges from 380 nm to 1000 nm

Methodology Applied

Scientific EffectElectroluminescence: Electroluminescence

Data Source

PatentUS8267554B2Light emitting diode device

Publication Date: 2012.09.18 SUN QINGHUAN

AI summary

A light emitting diode (LED) device comprises a base and a cover packaging of a rectifier diode chip and a light emitting diode chip connecting in series with a metal wire. The LED device can be plugged directly into the socket of the LED light string without any other external rectifier circuits. Moreover, the device has advantages of small size, easy-to-use and easy-to-change. By adopting different connection methods with the LED device, it can achieve anticipative functions, such as half-wave, full-wave and bridge rectifier, etc.