Topological Semiconductor Switch Actuation Across Mixed Semiconductor Groups
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Solution Overview
Problem
Existing methods cannot actuate topological semiconductor switches composed of different semiconductor materials and types simultaneously, limiting the optimization of power semiconductor usage in power electronics systems.
Innovation Solution
A method for real-time, momentary value-dependent actuation of topological semiconductor switches divides them into groups based on different materials and types, defining a switching threshold to determine which group to actuate based on operating conditions, allowing for independent control and optimization of each group's properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a topological switch comprises a parallel connection of different semiconductor materials and types, then the versatility and optimization of power semiconductor usage is improved, but the difficulty of actuating different semiconductors separately worsens
Solution Approach 1:
The control assembly is segmented into multiple independent control paths, each dedicated to controlling a specific power semiconductor or group of semiconductors with similar characteristics. This allows each control path to be optimized for its specific semiconductor type while maintaining the ability to control all semiconductors in the parallel connection.
Solution Approach 2:
The control assembly dynamically selects which control path to activate based on the desired output current level and the characteristics of available power semiconductors. This dynamic selection enables optimal utilization of different semiconductor materials and types under varying operating conditions.
2Ease of operation
If separate actuation signals are provided for each semiconductor type, then the independent control of different semiconductors is improved, but the complexity of the control circuit worsens
Solution Approach 1:
The control assembly is designed with a universal control structure that can provide independent actuation signals to multiple different semiconductor types through standardized control interfaces. This universal design enables independent control of each semiconductor while avoiding the need for completely separate control circuits for each type.
Solution Approach 2:
Control paths act as intermediary elements between the control assembly and the diverse power semiconductors. Each control path is tailored to interface with specific semiconductor types, translating universal control commands into appropriate actuation signals for the target semiconductor while simplifying the overall control architecture.
Data Source
AI summary
A method for the operating point-dependent actuation of a topological semiconductor switch for a power electronics system is proposed, in which the topological semiconductor switch is divided into at least two groups of power semiconductors made of different semiconductor materials and/or types of semiconductors. A switching threshold is also defined, at which switching from one group to another group, or adding at least one other group to the active group of topological semiconductor switches, takes place in order to conduct the output electricity. Furthermore, data for at least one physical value that describes the operating state of the system is obtained as input data and averaged. It is determined on the basis of this data and the switching threshold, which of the at least two groups of power semiconductors are actuated to conduct the output electricity.