Optoelectronic Voltage Converter With Galvanic Isolation
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Solution Overview
Problem
Existing optoelectronic devices face challenges in achieving a compact design while requiring high voltage supplies with low power consumption, especially in applications like AR/VR glasses and automotive systems, and need to manage galvanic separation of low-voltage and high-voltage paths for reliability and stability under varying environmental conditions.
Innovation Solution
The optoelectronic device employs a compact design with emitters configured to emit electromagnetic radiation across multiple peak wavelengths, using semiconductor light emitters and receivers to convert low voltage to high voltage, achieving galvanic isolation without inductive elements, allowing for efficient energy transmission and voltage conversion while being insensitive to external influences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional transformers with inductive elements are used for voltage conversion, then voltage transformation is achieved, but device footprint and size increase
Solution Approach 1:
The patent replaces the mechanical/inductive system (conventional transformers with coils and magnetic cores) with an optoelectronic system using LED emitters and photodiode receivers. This substitution eliminates the need for bulky inductive elements while achieving the same voltage transformation function through optical coupling and photovoltaic conversion, directly resolving the contradiction between voltage conversion capability and device footprint.
2Use of energy by moving object
If high voltage supplies are implemented in compact devices, then power consumption is reduced, but galvanic separation between low-voltage and high-voltage paths becomes challenging
Solution Approach 1:
The patent introduces optical radiation as an intermediary between low-voltage and high-voltage paths. The LED converter receives low-voltage electrical input and emits optical radiation that is detected by the photodiode array on the high-voltage side. This optical intermediary achieves galvanic isolation while enabling efficient power transfer, resolving the contradiction between reduced power consumption and maintained galvanic separation for reliability.
3Loss of energy
If optoelectronic devices are designed for multi-wavelength emission, then energy transmission efficiency is improved, but emitter structure complexity increases
Solution Approach 1:
The patent segments the emission function into multiple independent LED converters, each optimized for a specific wavelength. Instead of one complex multi-wavelength emitter, multiple simple single-wavelength converters work in parallel. Each converter connects to photodiodes tuned to its specific wavelength, improving overall energy transmission efficiency while keeping individual emitter structures simple and manageable.
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 solution enables the transmission and conversion of energy in a compact, reliable, and efficient manner, providing high voltage outputs with low power consumption and immunity to temperature fluctuations and electromagnetic fields, thus addressing the need for compact, reliable high-voltage generation in diverse applications.
Implementation Method 1
an emitter configured to emit electromagnetic radiation having two or more peak wavelengths
Implementation Method 2
a receiver configured to receive the electromagnetic radiation and configured to provide an output voltage
Data Source
AI summary
An optoelectronic device is specified, said device including a emitter configured to emit electromagnetic radiation having two or more peak wavelengths and to be operated with an input voltage, and a receiver configured to receive the electromagnetic radiation and to provide an output voltage.