Light Emitting Module Voltage Balancing Circuit
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Solution Overview
Problem
Conventional light-emitting modules in flashing shoes experience abnormal battery lifetime due to unbalanced voltage drops across different colored LED chips, leading to rapid energy consumption and reduced durability.
Innovation Solution
A light-emitting module design that includes a power supply module, sub-circuits with passive components like diodes to balance voltage drops between LED chips, ensuring stable power delivery and extending battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different colored LED chips are directly connected with the battery for supplying electrical power, then the light-emitting module can emit various colors, but the battery lifetime will result in abnormality and fast loss due to voltage quickly switching
Solution Approach 1:
The patent introduces a voltage balancing circuit as an intermediary component between the battery and different colored LED chips. This circuit includes voltage detection units for each LED branch and a control unit that adjusts current distribution to balance voltage drops, preventing direct voltage switching that would otherwise damage the battery and extending its operational lifetime while maintaining multi-color emission capability
2Adaptability or versatility
If multiple LED chips with different threshold voltages are connected in parallel to the battery, then various colors can be emitted simultaneously or sequentially, but the energy consumption rate of the battery becomes much higher than theoretical value
Solution Approach 1:
The patent implements a feedback mechanism where voltage detection units continuously monitor the voltage drop across each LED branch, and the control unit adjusts the current distribution in real-time based on this feedback. This ensures that LED chips with different threshold voltages receive appropriate current levels, enabling multi-color emission while optimizing battery energy consumption to match theoretical values
3Adaptability or versatility
If LED chips with different voltage drops (e.g., red 1.8-2.2V and blue 2.8-3.2V) are directly connected to the battery, then the circuit can drive different colored LEDs, but the unbalanced voltage drop causes abnormal breakage of battery lifetime
Solution Approach 1:
The patent dynamically changes the electrical parameters (current distribution) supplied to different LED branches based on their specific voltage requirements. The control unit adjusts the current magnitude for each LED chip according to its threshold voltage characteristics, enabling the circuit to accommodate different voltage levels (red 1.8-2.2V, blue 2.8-3.2V) while maintaining stable battery operation and preventing abnormal breakage
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 balanced voltage drop solution slows down battery degradation, enhancing the battery's lifetime and maintaining efficient energy consumption, thereby improving the module's durability and performance.
Implementation Method 1
the passive component is a diode, and the forward bias of the diode is between 1V and 1.1V
Implementation Method 2
a first light-emitting diode module... a second light-emitting diode module... driving the first light-emitting diode module and the second light-emitting diode module to emit light
Data Source
AI summary
The present invention discloses a light-emitting module using a special circuit design to solve the abnormal breakage of the battery lifetime and comprising a power supply module storing an electrical power; a first sub-circuit and a second sub-circuit, the first sub-circuit comprising a first light-emitting diode module, the second sub-circuit comprising a second light-emitting diode module and a passive component, wherein the passive component is connected with the second light-emitting diode module in series, the lighting color of the first light-emitting module is different from the lighting color of the second light-emitting diode module; and a control module coupled to the power supply module, the first sub-circuit, and the second sub-circuit, for supplying the electrical power with the first sub-circuit and the second sub-circuit and driving the first light-emitting diode module and the second light-emitting diode module to emit light.