Planar Electronic Switching Element for Compact Power Converters
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Solution Overview
Problem
Conventional high-speed switches and power modules for electric vehicle converters are bulky and prone to interference inductances, making them unsuitable for compact applications like aircraft and electric motor integration.
Innovation Solution
The design features a planar electronic switching element with semiconductor switches connected via extensive busbars, minimizing physical size and inductance, allowing for efficient embedding in printed circuit boards and integration into motor housings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional transistors are used as separate components, then the switching function is achieved, but the physical size and safety risk increase
Solution Approach 1:
The patent merges the transistor with the printed circuit board by embedding the semiconductor switch directly into the PCB layer structure. The transistor is no longer a separate component but is integrated into the board itself, eliminating the need for separate mounting and reducing overall physical size while improving reliability through reduced connection points.
Solution Approach 2:
The invention transitions from three-dimensional separate components to a two-dimensional planar integration within the PCB layer. The switching element is flattened and embedded within the board structure, changing the spatial arrangement from vertical stacking of components to horizontal integration within the board plane.
2Object-affected harmful factors
If conventional power modules are used, then the switching function is achieved, but the inductance and physical size increase
Solution Approach 1:
The patent merges the switching element with the PCB trace structure, eliminating the need for separate busbars and connection elements. The conductor tracks are directly integrated with the switching element, reducing the loop area and thus minimizing interference inductances while reducing physical size.
Solution Approach 2:
The invention uses planar conductor tracks on the PCB to replace traditional three-dimensional busbar structures. This two-dimensional approach reduces the current loop area and minimizes inductance while maintaining electrical functionality.
Data Source
AI summary
An electronic switching element includes at least one semiconductor switch inserted into a layer sequence of a conductor structure element; and at least two busbars which are configured to contact-connect the at least one semiconductor switch, wherein the at least two busbars run substantially above one another in the layer sequence of the conductor structure element.