Gate Driver Serial Link With Galvanic Isolation for Rich Device Data
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Solution Overview
Problem
Conventional control systems for power semiconductor devices are limited in handling voluminous data communications, resulting in restricted data processing and increased complexity due to redundant circuitry, which hinders efficient control and monitoring of power semiconductor devices.
Innovation Solution
The implementation of a system with a controller coupled to power semiconductor devices via a first and second channel, utilizing galvanic isolation and multiplexing to facilitate high-bandwidth communication through a serial link, enabling the transmission of enhanced data sets, including operational and asset information, while reducing complexity and cost by eliminating redundant circuitry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional control systems are used for power semiconductor devices, then the system structure is simple, but the data communication capability is limited and cannot handle voluminous amounts of data
Solution Approach 1:
The patent combines multiple communication channels (first and second channels) into a unified communication system that transmits both control signals and status information. The controller integrates multiple functions including generating control signals, receiving status information, and processing data through a single integrated unit, thereby improving data communication capability without proportionally increasing system complexity.
Solution Approach 2:
The controller is designed as a multi-functional device that can generate control signals for power semiconductor devices, receive status information from the same devices, process various types of data (operational data, asset information), and communicate through multiple channels. This universal design allows the system to handle voluminous data communications while maintaining reasonable complexity through consolidated functionality.
2Reliability
If redundant circuitry is used in conventional control systems, then the system structure is robust, but the complexity and cost increase
Solution Approach 1:
The patent extracts and eliminates redundant circuitry from the conventional control system design. By using a streamlined controller architecture that integrates multiple functions and communicates through optimized channels, the system removes unnecessary duplicate components while maintaining robustness through efficient error handling and data validation mechanisms embedded in the controller logic.
Solution Approach 2:
The controller acts as an intermediary that manages communication between power semiconductor devices and the control system. It processes and validates data, generating control signals and receiving status information through structured channels, thereby maintaining system robustness through intelligent mediation rather than redundant hardware circuitry.
3Loss of information
If limited data communication is used in conventional systems, then the system is easier to operate, but the data processing capability is restricted
Solution Approach 1:
The patent segments data communication into structured channels: a first channel for control signals and a second channel for status information. This segmentation allows the system to handle voluminous data communications efficiently by organizing data flows, while the controller processes these segmented channels through systematic methods that maintain operational simplicity despite enhanced data processing capability.
Data Source
AI summary
Systems, methods, and apparatus for controlling power semiconductor devices are described. According to one embodiment of the disclosure, there is disclosed a system. The system may include at least one power source for selectively providing power to one or more power semiconductor devices controlled by a gate driver. The gate driver may include at least one controller coupled to at least one power semiconductor device interface via a first channel and a second channel configured to provide galvanic isolation of information communicated between the controller and the at least one power semiconductor device interface.