Circuit Board Layout for Switching Single and Multi-Voltage Supply
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing complexity of vehicle systems due to Mobility as a Service (MaaS) and Connected and Autonomous Electrification (CASE) requires electrical circuit boards that can efficiently handle multiple power supply voltages, leading to increased costs and development time due to the need for multiple circuit board designs for different voltage specifications.
Innovation Solution
An electrical circuit board with a first circuit pattern for single power supply voltage and a second circuit pattern for multiple power supply voltages, along with inter-board connections and fuse holders that can switch between different voltage configurations, allowing for a common board to be used across various devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple circuit board designs are created for different voltage specifications, then each design can be optimized for its specific voltage requirement, but the number of circuit board types and part numbers increases
Solution Approach 1:
The circuit board is designed with multiple power supply connection portions (first power supply connection portion for 12V, second power supply connection portion for 48V) and corresponding circuit patterns that can be selectively activated. This allows a single circuit board design to support multiple voltage specifications, eliminating the need for separate designs for different voltages while maintaining optimized performance for each voltage level.
2Device complexity
If a common circuit board is used for multiple voltage specifications, then the number of circuit board types is reduced, but the circuit board must handle complex multiple voltage configurations
Solution Approach 1:
The circuit board is segmented into distinct first and second circuit patterns, where the first circuit pattern handles 12V power supply connections and the second circuit pattern handles 48V power supply connections. Each circuit pattern has its own dedicated power supply connection portion, allowing selective activation based on the required voltage specification. This segmentation enables the common circuit board to handle multiple voltage configurations without complexity, as each voltage level has its own isolated circuit path.
3Reliability
If separate circuit boards are manufactured for single power supply and multiple power supply configurations, then each board can be optimized for its specific configuration, but manufacturing costs and development time increase
Solution Approach 1:
The patent merges the functionality of separate circuit boards designed for single power supply (12V only) and multiple power supply (12V and 48V) configurations into a single unified circuit board. By integrating both first circuit patterns (for 12V) and second circuit patterns (for 48V) with their respective power supply connection portions on one board, the design eliminates the need for separate manufacturing processes and development cycles, thereby reducing manufacturing costs and development time while maintaining configuration optimization.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An electrical circuit board (11) on which an electronic component forming an electronic control unit disposed between an upstream power supply and a downstream power supply trunk line is mounted. The electrical circuit board includes a first circuit pattern (P1) that forms an electrical circuit corresponding to a single power supply voltage of the upstream power supply, a second circuit pattern (P2) that forms an electrical circuit corresponding to a plurality of power supply voltages of the upstream power supply, a single power supply connection portion corresponding to connection with an external circuit that supplies the upstream power supply, and an inter-board connection portion corresponding to inter-board connection with another circuit board that supplies the upstream power supply.