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salil
Feb 14, 2019
How topology selection can help improve reliability in industrial AC/DC power supplies
Increasing power-supply reliability is all about reducing thermal, voltage and current stress on power components, which are mostly a function of the input voltage and power required. Still, you have the option to select topologies that can help reduce these stresses. Similarly, while thermal stress is a function of power rating, power-supply efficiency...
Sanjay Pithadia
Feb 12, 2019
Going beyond traditional SpO2 measurement with multiwavelength optical measurements
Photoplethysmography (PPG) is a popular optical technology for heart rate monitors (HRMs) and peripheral capillary oxygen saturation (SpO 2 ) measurements. It is simple and convenient because it requires only the attachment of an LED and a photodetector (PD) to the body. The fundamental theory of PPG is based on the variation of light absorption...
Kristen
Feb 1, 2019
Anything but discrete: How to simplify 48V to 60V DC fed three-phase inverter design
Imagine that you’re designing the next power stage of a servo, computer numerical control (CNC) or robotics application. In this instance, the power stage is a low-voltage DC-fed three-phase inverter for voltages ranging from 12 V DC to 60 V DC , with power ratings less than 1 kW. This voltage rating covers the range typically used for battery...
Prajakta Desai
Jan 31, 2019
Intelligence at the edge powers autonomous factories
A variety of robots, from traditional industrial robotic systems to today’s latest collaborative robots, rely on sensors that generate and process large volumes of highly varied data. This data can be used to enable autonomous robots that can make real-time decisions, resulting in smarter incident management while maintaining productivity in dynamic...
Jason Clark
Jan 31, 2019
This day in TI space: from 1958 to today
When we say that our space products are out of this world, we mean it. Our heritage in space exploration is rich, dating as far back as 1958 with the launch of the U.S.’s first satellite, Explorer I, several months before our very own Jack Kilby invented the integrated circuit. Since, then, TI semiconductors have been instrumental in a number...
Akshay Mehta
Jan 15, 2019
Advantages of using nonisolated DC/DC power buck modules in DAQ applications
(Note: Sreenivasa Kallikuppa co-authored this blog post.) In a previous post, “ Enhancing DAQ performance for grid protection, control and monitoring equipment using DC/DC power modules ,” we discussed how power modules offer lower electromagnetic interference (EMI) and output ripple, thus improving overall data acquisition (DAQ) performance...
Kallikuppa Sreenivasa
Dec 11, 2018
Enhancing DAQ performance for grid protection, control and monitoring equipment using DC/DC power modules
(Note: Akshay Mehta co-authored this blog post.) In my previous blog posts on improving data acquisition (DAQ) performance for grid protection, control and monitoring equipment, I discussed the need for interfacing multiple analog-to-digital converters (ADCs) and showed how you can improve DAQ performance and measurement accuracy by using the programmable...
Harmeet Singh
Dec 10, 2018
Using smart relay drivers for smart meters, part 2
In part 1 of this series, my colleague Shreenidhi Patil discussed the two most popular types of latching relays used in smart meters: a single-coil relay and a dual-coil relay. In this installment, I will explore TI’s offerings for relay-driving applications, including typical schematics and waveforms. Also, for an application-level understanding...
Kallikuppa Sreenivasa
Dec 4, 2018
Covering wide analog input measurement for grid protection and control using 24-bit delta-sigma ADCs
In my two previous blog posts on improving data acquisition (DAQ) for grid protection and control, I discussed the need for interfacing multiple analog-to-digital converters (ADCs) to a single processor and using the programmable real-time unit subsystem and industrial communication subsystem (PRU-ICSS) to improve sensor DAQ performance . In this post...
Shreenidhi Patil
Dec 3, 2018
Using smart relay drivers for smart meters, part 1
Utilities deploy an estimated 100 million smart electricity meters around the world annually. The ability to monitor live power consumption and remotely provide or disconnect electric service to customers is a foundational feature for a smart electricity meter. Utility operators need to remotely connect or disconnect electric service for several...
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