Analog Design Journal
Power and signal chain technical insight written by engineers for engineers.
Celebrating 20 years of quarterly publication, our Analog Design Journal offers powerful technical insight written by engineers for engineers. These exclusive, carefully selected articles help novice and seasoned engineers sharpen their knowledge of emerging applications and analog circuits.
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New Q1 2020 Analog Design Journal articles
How to improve PFC light-load efficiency
Bosheng Sun, Applications Engineer
Although the efficiency of power supplies has improved significantly, most efforts focus on improving efficiency at medium to heavy loads. However, light-load efficiency is becoming more and more important.
This article describes how to improve the light-load efficiency of an AC/DC power supply with a power factor correction (PFC) front end.
Error analysis for ratiometric and absolute methods of temperature sensing
Hadi Ebrahimi-Darkhaneh, System Engineer
A thermistor is designed as a two-terminal solid state (thermally) sensitive transducer in which its resistivity changes with temperature. Using different semiconductor (SC) materials and fabrication processes, thermistors are available with a negative temperature coefficient (NTC) or a positive temperature coefficient (PTC).
This article presents the comparison between the ratiometric and absolute methods in temperature sensing using NTC and Si-based PTC thermistors. Also included is a fundamental theory discussion about PTC and NTC thermistors with a comparison between the two measurement methods
Designing PoE switching supplies for input power sharing
Jean Picard, Senior Member Technical Staff, Systems Engineer
Darwin Fernandez, Power over Ethernet Strategic Applications Engineer
Power sharing and power limiting are common requirements for systems that have multiple power inputs. One common approach is to apply even current sharing between power-supply modules based on an output current measurement from each module.
Advanced EMI mitigation techniques for automotive converters
Yogesh Ramadass, Director – Power Mgmt. R&D, Kilby Labs, Santa Clara
Ambreesh Tripathi, Application Engineering Manager, CCP – BSR, Santa Clara
With the emergence of new trends in automotive electronics such as autonomous driving, car infotainment systems and hybrid to all-electric cars, electrical engineers are facing an onslaught of new challenges, particularly in designing automotive front-end power systems.
This article provides an overview of the EMI problems caused by automotive switch-mode power supplies and the various techniques employed in TI’s converter products to help mitigate the issue.
Push-pull converter simplifies isolated power supply design in HEV/EV
Anant Kamath, Systems Engineer
With the rapid growth of hybrid electric vehicles (HEVs) and full EVs, the need for galvanic isolation in automotive applications has also grown. Galvanic isolation is used in starter generators, battery-management systems, onboard chargers and traction inverters to separate high-voltage circuits from low-voltage circuits.
This article explores a few salient features of the push-pull topology and explains its performance and design benefits.
Analog Design Journal archive
Looking for a previous ADJ article? Browse the archive with articles from 1999-Q3 2019
Technical advisory council
TI's technical advisory council for the Analog Design Journal is comprised of three industry veterans who help guide our deep, technical content. Their goal is to bring readers topics that are current and relevant to your designs and provide advice to authors on how to thoroughly answer your burning questions.
I enjoy extending my knowledge and teaching newer engineers by removing design obstacles in their path.
[While enrolled at University of Texas at Dallas] I was involved in robotics and tutoring. My hobbies include gardening, fishing and fixing small and large engine machinery.
My parents taught me to always teach, and to gain insights by observing many perspectives to solve a problem. It’s what engineering is all about.
Provides analog-to-digital converter (ADC) and digital-to-analog converter (DAC) sub-circuit ideas that can be quickly adapted to meet your specific system needs.
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