How would you convert a single-ended signal from a sensor to a fully differential signal in order to drive an ADC?
Welcome to the world of Power Systems. The first part of the session focuses on Introduction to Power Systems, Goal of Power systems protection, fundamentals of Electricity, AC or DC, Importance of electricity, Power system voltage levels and consumers of electricity. Need and Complexities in protection of power system primary Equipment like Generators, Motors, Transformers and Circuit Breakers and finally analysis of what can go wrong on a transmission line.
Second part of the session explains use case for protection relay, the sequence of events during a fault, Fault Types and the approach for fault analysis. The Session also explains commonly used protection relays and application of different relays along the grid for protection of Generation, Transmission, Distribution and Industrial equipment, Evolution of protection relays from traditional mechanical, static and the current generation digital relays.
The third part of the session provides details on the need to focus on AC analog input module and its use cases in different types of protection relays, Different types of current sensors and the use cases for these sensors including key advantages and dis-advantages. Explains AC analog input module architecture including block diagram showing the critical products and EERD with different subsystems identified showing different approaches for designing an AC AIM.
Fourth part of the session explains representation of Voltage or Current waveforms in Time and frequency domain and also looks at the customer use case for application of Time or frequency domain Analysis. The session also explains different sampling approaches like Simultaneous sampling, Coherent sampling, Oversampling to improve system performance, criteria for ADC selection and choice between SAR and Delta-Sigma ADCs. There is a list of TI products that can be considered during the design of the AIM and finally provides overview for Focus ADCs for this session.
Design Details for TI design TIDA-00834 High Accuracy Analog Front End Using 16-Bit SAR ADC with ±10V Measurement Range Reference Design
Fifth part of the session will focus on providing detailed information on TIDA-00834 TI design. The initial slides cover Design Overview, Features, Key Components, test Setup, market differentiators, Block Diagram with links to relevant TI Designs, EVMs and TI product used in this design. Circuit representation and detailed description for ADC interface, Voltage and Current measurement and Power supply are provided. Graphs for Voltage and Current measurement accuracy are shown; along with collaterals and TI design links that can be referred by customers during design.
針對 Voltage 與 Current Sensing ，講師詳細的說明在進行系統設計時的相關影響以及設計挑戰，除了原理與理論，講師也分享多種實務上會常見的狀況以及解決方案，是進行量測系統設計時相當實用的一堂課。
針對馬達中的電壓與電流量測，講師在這堂培訓課程中說明 Delta-Sigma 如何扮演在系統中重要的角色，以及 Delta-Sigma 的特長。課程中講師說明在工業用馬達中為何需要電壓與電流的檢測、傳統中 SAR-based 系統的做法與其限制、說明 Delta-Sigma 的原理、系統應用上常見的問題與如何解決，最後介紹 TI Isolation 隔離產品的特色等與重點的參考設計。