An introduction to the new DesignDRIVE Position Manager technology for TMS320F28379D and TMS320F28379S Delfino™ real-time controllers. Position Manager provides solutions for interfacing to servo motor rotor absolute position sensors such as resolvers, SIN/COS, EnDat 2.2 and BiSS-C.
This section covers what is meter tampering and why is this a problem for utility providers. It also covers the advantages of shunt current sensors. In addition, it introduces the isolated modulator and isolated metrology AFE architectures for adding isolation to shunts.
For both isolated modulator and isolated metrology AFE architectures, high-side power supplies are needed for each phase. In this section, the different high-side power supply options that are available are discussed, which include cap-drop power supplies, isolated DC/DC power supplies with external transformers, as well as isolated DC/DC power supplies with transformers integrated.
In this section, the isolated metrology AFE architecture will be discussed. The software and hardware design considerations for this architecture will be discussed. In addition, the TIDA-01550 isolated metrology AFE reference design will also be discussed.
In this section, the isolated modulator architecture will be discussed. The software and hardware design considerations for this architecture will be discussed. In addition, various isolated modulator designs will also be discussed and compared.
Both isolated modulator and isolated metrology AFE architectures have their advantages with respect to each other. Depending on system requirements, one architecture may be more feasible than the other. This section compares the two isolated shunt sensing architectures and discusses which architecture is best for different system requirements.
In this section, a summary of the entire “Polyphase Current Measurement with Isolated Shunt Sensors” training module would be covered. Links will be provided for the reference designs that were discussed during this training series.