This article looks at semiconductor technologies that are driving EV chargers, including high-voltage semiconductor switches, power converters, and multi-level complex power stages.
October 06, 2020 by Jayanth Rangaraju, Texas Instruments
Autonomous drones and robots utilize small motors. These fast-spinning mini motors require miniature encoders and IC package sizes. This article shows how an optical sinusoidal encoder provides a higher resolution and increased speeds with a 2x3 mm dual simultaneous-sampling SAR-ADC.
August 11, 2020 by Bonnie Baker, Maxim Integrated
In part 12 of Resolving the Signal, we look at a power-supply noise design example to discuss which supplies are most critical when trying to increase a system's PSR. From that example, we offer best practices to maintain low power-supply noise and debugging tips for a system's overall noise performance.
January 29, 2019 by Bryan Lizon, Texas Instruments
Part 11 of the Resolving the Signal series explores how power supplies contribute to unwanted noise, how to measure and quantify that noise, and how noise ends up impacting system performance.
December 11, 2018 by Bryan Lizon, Texas Instruments
Part 9 of the Resolving the Signal series analyzes several different methods for reducing reference noise's effect in systems and examines the difference of reference noise's impact on low- and high-resolution ADCs.
October 02, 2018 by Bryan Lizon, Texas Instruments
Part 8 of the Resolving the Signal series dives further into how different noise sources impact precision delta-sigma ADCs by focusing on reference noise and ADC noise, and how gain affects reference noise.
August 21, 2018 by Bryan Lizon, Texas Instruments
This article shows how to implement an analog PID controller, including adjusting of the angular position of a DC motor shaft, editing the design to control its speed, and tuning PID parameters for reliable performance.
August 14, 2018 by Mahmoud Hamdy, Brightskies Technologies
Are SiC MOSFETs the best answer for maximizing a power converter's efficiency? This article explores a recent study performed on a 1200 V, 80 mΩ SiC MOSFET, highlighting its short circuit capabilities.
July 16, 2018 by Littelfuse, Inc
Part 6 of this 12-part Resolving the Signal series focuses on output- versus input-referred noise, adding an amplifier at the input of an ADC, and low- versus high-resolution ADCs as they relate to amplifier noise.
June 19, 2018 by Bryan Lizon, Texas Instruments
This article reviews the fundamental features of an effective protection scheme, highlights the shortcoming of a typical protection implementation—such as a high bill of materials and PC board size occupation—and introduces a new family of integrated, highly flexible protection ICs that address these concerns.
June 05, 2018 by Maxim Integrated
Part 5 of this 12-part series continues to explore effective noise bandwidth as it relates to delta-sigma ADCs and system-level design by stepping through a simple example using a two-stage filter to understand how to calculate the ENBW and how system changes affect the ENBW.
May 22, 2018 by Bryan Lizon, Texas Instruments
Part 4 of this “Resolving the Signal” article series covers noise in delta-sigma ADCs focuses on understanding basic effective noise bandwidth (ENBW) topics.
April 11, 2018 by Bryan Lizon, Texas Instruments
In part 2 of this series, I'll continue the fundamental ADC noise discussion by covering how to measure ADC noise, noise specifications in ADC data sheets, and absolute versus relative noise parameters.
February 13, 2018 by Bryan Lizon, Texas Instruments