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TI Precision Labs

TI Precision Labs (TIPL) is the most comprehensive online classroom for analog signal chain designers. From foundational knowledge to advanced concepts, our logical, sequenced and comprehensive teaching approach is both intuitive and practical. The training series, which includes videos and downloadable reference materials, will deepen the technical expertise of experienced engineers and accelerate the development of those early in their career.

TI Precision Labs - Sensors

TI Precision Labs - Sensors

TI Precision Labs (TIPL) is the most comprehensive online classroom for analog signal chain engineers. The on-demand courses and tutorials include introductory ideas about device architecture, in addition to advanced, application-specific problem-solving, using both theory and practical knowledge. 

In the TI Precision Labs - Sensors series, our experts will teach you about temperature and magnetic sensors to help you reduce design time and move quickly from proof-of-concept to productization.

Introduction

This section covers what is meter tampering, why is this a problem for utility providers, and some common ways a meter is tampered.

Detecting case tamper attacks using inductive switches

The first line of defense against tampering by bypassing current, reversing connections, and disconnecting leads is the meter case. Due to this, it is common for utilities to require some form of intrusion detection system to detect when someone opens a case.  In this section, we will cover how to detect someone trying to open the case of a meter.

Detecting magnetic tampering using hall-effect sensors

For anti-tampering, it is common to try to detect the presence of a strong magnet. In this section, we will cover the use of hall sensors for low-power detection of strong magnetic fields in three dimensions.  Details on our magnetic tamper detection reference design, TIDA-00839, will be provided as well as some of the design considerations that were kept in mind when creating this reference design.  

Hardening a meter against magnetic tamper attacks

In this section, we will cover how to harden a meter against these magnetic tamper attacks by using shunts for current sensors. For poly-phase implementations, I will go over how to use isolated delta sigma modulators to add the necessary isolation to use shunt current sensors and create magnetically immune poly-phase energy measurement systems. The TIDA-00601 and TIDA-01094 reference designs, which show how to implement a poly-phase isolated shunt measurement system, will be discussed as well as the associated AMC1304 high-side power supplies used in these designs.

Summary

In this section, a summary of the entire “Securing Smart Meters from Attack with TI Analog” training module would be covered.  This summary would cover the “Detecting case tamper attacks using inductive switches “, “Detecting magnetic tampering using hall-effect sensors “,  and “Hardening a meter against magnetic tamper attacks “ sections of the training series. Links will be provided for the reference designs and design tools that were discussed during this training series.

Motor Drives in Appliances: Why Transforming from High Voltage to Low Voltage?

Learn the opportunities of motor drives in appliances and understand why there is clear transformation happening from high voltage to low voltage motor drives

Brushed DC and Stepper Motor Drives: Architectures, Challenges and Solutions

Learn the different power stage architectures and topologies for low voltage brushed DC and stepper motor drives and understand typical system design challenges and differentiated solutions from Texas Instruments.

Brushless DC Motor Drives: Architectures, Challenges and Solutions

Learn the different power stage architectures and topologies for low voltage brushless DC motor drives and understand typical design challenges and differentiated solutions with integrated motor drivers.

How to Design a Robust, Reliable and Efficient Power Stage for Brushless DC Motor?

Learn about the design challenges for the power stage in a low voltage BLDC motor drive and understand the system solutions enabling high efficient, robust and reliable system.  Also learn about different power supply solutions for low voltage motor control.

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