ASIC Packaging for Electronic Brake Lamp Switch
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Solution Overview
Problem
Conventional electronic brake lamp switches are limited in reducing volume and cost due to the separation of sensing, output, and protection devices on a printed circuit board, with passive elements and circuits occupying significant space and contributing to high production costs.
Innovation Solution
Integration of sensing, output, and protection devices into a single Application-Specific Integrated Circuit (ASIC) that generates signals for the brake lamp and protects against overvoltage and short circuits, mounted on a printed circuit board to reduce space and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If sensing device, output device, and protecting device are mounted separately on a printed circuit board, then each device can be independently designed and manufactured, but the overall product volume increases and manufacturing cost increases
Solution Approach 1:
The patent integrates the sensing device, output device, and protecting device into a single ASIC chip. This merging of previously separate components into one integrated circuit dramatically reduces the overall product volume while maintaining the functional independence of each device through specialized circuit design within the ASIC.
2Reliability
If multiple separate devices are mounted on a printed circuit board, then functional redundancy can be implemented, but the circuit structure becomes complex and failure rate increases
Solution Approach 1:
The patent integrates the sensing device, output device, and protecting device into a single ASIC chip. This merging of previously separate components into one integrated circuit dramatically reduces the overall product volume while maintaining the functional independence of each device through specialized circuit design within the ASIC.
Data Source
AI summary
An electronic brake lamp switch may include an application-specific integrated circuit (ASIC) configured to generate a signal for turning on a brake lamp, an first output signal, and a second output signal, respectively, when a brake pedal is pressed and configured to package electrical elements for preventing failure when the failure such as outside overvoltage, abnormal surge or short circuit able to be generated on an output terminal occurs, and a printed circuit board (PCB) configured to receive power for operating the application-specific integrated circuit and to which the ASIC is mounted.