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  • 3 tips to optimize data reliability with sensors in real-time control systems

    Bryan Padilla
    Bryan Padilla
    Other Parts Discussed in Post: TMP1826, TMAG5170, INA240-SEP, INA901-SP

    Real-time control is the ability of a closed-loop system to gather data, process that data, and update the system within a defined time window. As a continuation of the article, “What is ‘Real-Time Control’ and Why Do You Need It?,” I’ll take a closer look at the first functional block of real-time control systems – sensing (gathering…

    • Aug 9, 2022
  • 6 more myths about Hall-effect sensors

    Manny Soltero
    Manny Soltero
    Other Parts Discussed in Post: TMAG5170

    Previously published on Electronic Design

    In my previous Hall-effect sensor myths technical article, I focused on misconceptions about Hall-effect switches and latches, including common applications where designers could benefit from using Hall-effect sensors instead of other integrated circuits. The six myths in this article go a bit more in depth on the high-accuracy angle-measurement…

    • May 31, 2022
  • What is ultrasonic lens cleaning technology?

    Avi Yashar
    Avi Yashar

    You’ve probably heard that it’s possible to shatter glass by screaming at a high-pitched tone, but have you heard of cleaning glass by screaming? With precisely controlled, high-frequency vibrations, ultrasonic cleaning technology can clean glass surfaces. On a rainy day this technology could automatically detect and clear raindrops from a car’s rear camera lens without requiring action from the driver…

    • May 5, 2022
  • Benefits of flip chip on leadframe packaging for motor-drive applications

    Nicholas Oborny
    Nicholas Oborny

    Semiconductor packaging techniques have evolved in order to adapt to the smaller chip sizes made possible by technological advances, as well as increased power dissipation and growing demands for power density. Flip chip on leadframe (FCOL) packaging technologies have become increasingly popular given their technical benefits and efficient use of printed circuit board (PCB) area. In this article, I’ll give a short overview…

    • Apr 29, 2022
  • 5 common Hall-effect sensor myths

    Manny Soltero
    Manny Soltero
    Other Parts Discussed in Post: DRV5032, TMAG5124, TMAG5123

    Previously published on Electronic Design

    Hall-effect sensors are commonly used in automotive and industrial systems for applications including proximity detection, linear displacement measurement and rotary encoding. Currently, the high system performance requirements of modern applications have led to IC manufacturers increasing sensitivity accuracy, integrating…

    • Apr 26, 2022
  • How integrated brushed-DC solutions can reduce size, enhance protection and simplify design in automotive motors

    Gerardo Gaona
    Gerardo Gaona
    Other Parts Discussed in Post: DRV8243-Q1, DRV8245-Q1, DRV8244-Q1

    A brushed DC motor’s simplicity of control, low cost and wide range of capability makes it a good fit for automotive loads that need integrated, high-powered and reliable motor drivers such as window lifts, sunroof controls, locks, latches and engine valves.

    If you’re designing an automotive system, you’ll likely encounter both device- and system-level…

    • Apr 20, 2022
  • What is “real-time control” and why do you need it?

    Marlyn Rosales Castaneda20
    Marlyn Rosales Castaneda20

    Co-authored by Matthias Thoma

    Every day, consumers interact with systems that assess their surroundings and act accordingly. In a vehicle, when pressing the accelerator, the vehicle speeds up almost instantaneously – there is no noticeable delay between pressing the pedal to acceleration.

    To apply this example to the topic of this article, if the vehicle were a system, the surroundings pressing the accelerator and…

    • Apr 6, 2022
  • Addressing the growing needs of fault detection in high-power systems

    Krunal Maniar
    Krunal Maniar
    Other Parts Discussed in Post: AMC23C12

    Fault-detection mechanisms are a necessity in high-power industrial systems such as motor drives and solar inverters, as well as automotive systems including electric vehicle (EV) chargers, traction inverters, onboard chargers and DC/DC converters.

    Fault detection involves current, voltage and temperature measurements to diagnose any AC power-line fluctuations, mechanical or electrical…

    • Apr 1, 2022
  • Designing with low-power op amps, part 4: Stability concerns and solutions

    Daniel_Miller
    Daniel_Miller
    Other Parts Discussed in Post: TLV9062, TLV9002, TLV9042, TLV8802

    The first three installments of this technical article series focused on the benefits of designing with low-power amplifiers and how to maximize their efficiency. Unfortunately, low-power amplifiers also come with their share of trade-offs. In this fourth installment, I will consider one of the most common challenges with low-power amplifier designs – instability…

    • Mar 8, 2022
  • Expand your engineering knowledge with TI Precision Labs

    Alec Saebeler
    Alec Saebeler

    Whether it excites or bores you, continued learning is a necessary part of life. Semiconductors and electronics invite constant learning; I personally enjoy exposure to new material and ideas. The field of electronics contains an abundance of textbooks, research and experiences, and choosing among them can be difficult and time-consuming. My TI journey began with a resource created to guide this learning process: TI Precision…

    • Mar 1, 2022
  • Achieving a 360-degree field of view in mechanically scanning lidar with BLDC motors

    Issac Hsu
    Issac Hsu
    Other Parts Discussed in Post: DRV8316, MCT8316Z

    Everyone agrees that seeing clearly on the road is essential while driving a car. This truth becomes even more critical when implementing technologies such as autonomous driving. The “eyes” of an autonomous vehicle are called light detection and ranging (lidar) technology, which provides precise images of what surrounds the vehicle. Lidar systems use a light source and…

    • Jan 27, 2022
  • Solving top comparator challenges: Negative inputs and phase reversal

    Chi Nguyen1
    Chi Nguyen1
    Other Parts Discussed in Post: LM2903B, TLV1701

    Incorrect output behavior can occur when large negative input voltages in comparators violate the input common-mode voltage range. In cases where it’s not possible to avoid a negative input voltage, it’s important to protect the input pins of the comparator and prevent a phenomenon called phase reversal, also known as phase inversion, from occurring.

    In this article…

    • Jan 18, 2022
  • Achieving high-DC precision and wide large signal bandwidth with Hi-Z buffers

    Leaphar Castro
    Leaphar Castro
    Other Parts Discussed in Post: BUF802

    To reliably capture high-frequency signals and fast transient pulses, wide-bandwidth data acquisition systems like oscilloscopes and active probes require high-performance analog front-end (AFE) signal chains that must be able to:

    • Support 1 VPP signals (at least) to ensure a high signal-to-noise ratio.
    • Support DC to 500 MHz of high input-impedance (Hi-Z) to prevent loading of the…
    • Jan 18, 2022
  • How smart AFEs offer an integrated analog solution for thermoelectric cooling control

    Gavin Bakshi27
    Gavin Bakshi27
    Other Parts Discussed in Post: AFE539A4

     Andrew Wallace contributed to this article

    In a previous article, “What is a smart AFE?,” I discussed smart analog front ends (AFEs) and how they represent the most recent advancement in closed-loop control. Many of the applications discussed in the previous article covered broader applications in the automotive and industrial markets. In this article, I’ll explore one industrial…

    • Jan 4, 2022
  • How to achieve microvoltage-level precision in thermopile applications

    Marek Lis
    Marek Lis
    Other Parts Discussed in Post: OPA333, OPA189, OPA387, LM7705

    Thermopiles are useful noncontact sensors for measuring not only temperature but also detecting select gases. Since thermopiles may have relatively high series impedance, they present numerous challenges to circuit designers trying to obtain absolute precision across a wide temperature range while meeting required minimum resolutions. The low output voltage…

    • Dec 9, 2021
  • Balancing ADC size, power, resolution and bandwidth in precision data-acquisition systems

    Mark Berarducci
    Mark Berarducci
    Other Parts Discussed in Post: REF6041, THS4551, ADS127L11

    Recent trends to miniaturize industrial products have created new challenges for precision data-acquisition systems. Designers must balance solution size and power consumption of the overall system while enabling more precise signal measurements at higher bandwidths – while making trade-offs along the way.

    In this article, I’ll discuss these challenges in…

    • Dec 3, 2021
  • Solving top comparator challenges: Violating input common-mode range

    Gerome Cacho
    Gerome Cacho
    Other Parts Discussed in Post: LM393, TL331

    The input common-mode voltage range (commonly abbreviated as VCM or VICR) is a term that’s widely recognized in the analog world but misunderstood in the comparators world. For an amplifier, VCM is defined as the average voltage applied to both inputs. But for a comparator, it has an entirely different meaning.

    The normal operation of a comparator implies two inputs crossing…

    • Nov 23, 2021
  • What is a smart AFE?

    Gavin Bakshi27
    Gavin Bakshi27
    Other Parts Discussed in Post: AFE539A4

    The classic analog signal chain comprises inputs, processing and outputs. The inputs are received by an analog-to-digital converter (ADC) or comparators. A microcontroller (MCU) with control software handles the processing. Finally, the analog outputs are produced by digital-to-analog converters (DACs) or pulse-width modulation (PWM).

    In this article, I’ll introduce a new type of…

    • Nov 18, 2021
  • Solving top comparator challenges: Chatter

    Izak Walker
    Izak Walker
    Other Parts Discussed in Post: LM2903, TLV7012, TLV3605, TLV3603

    Comparators are fundamental analog components found in nearly every application. One way to describe comparators is that they are 1-bit ADCs: They have two inputs, with one typically used as a voltage reference and the other an input voltage signal. Depending on which input is the reference and what the input voltages are, the comparator output will toggle…

    • Oct 29, 2021
  • Understanding brushless-DC motor systems, part 2

    Matt Hein
    Matt Hein

    (This article was originally published on Planet Analog.)

    I last left you hanging with a fancy-looking diagram and table in the first installment of this series, very likely lost, dazed and confused. Let me go into some more detail on the three motor types: speed, torque and position.

    Speed

    A motor system falls under the speed category when its primary function is to operate at a constant or variable speed. These systems…

    • Oct 20, 2021
  • Understanding brushless-DC motor systems, part 1

    Matt Hein
    Matt Hein

    (This article was originally published on Planet Analog.)

    Quick – what are the three motor types? The most common answer that I hear is “brushed-DC motors, stepper motors and brushless-DC motors,” which is basically a knee-jerk reaction to the question. Some of the more intrepid motor-drive experts I know might say “single-phase AC input, multiphase AC input or DC input,” categorizing each motor by its input…

    • Oct 18, 2021
  • How space-grade digital isolation meets high radiation and immunity requirements in LEO satellites

    Sadia Khan
    Sadia Khan
    Other Parts Discussed in Post: ISOS141-SEP

    Today’s space race isn’t just about landing on new worlds; it’s a race to better connect our own, through global broadband connectivity powered by mega constellations known as low Earth orbit (LEO) satellites. Just like terrestrial applications, LEO satellites require signal and power isolation to enhance system integrity and performance by preventing ground potential…

    • Oct 14, 2021
  • How can I achieve accurate gain error and drift with a switched-gain transimpedance amplifier?

    Luis Chioye
    Luis Chioye
    Other Parts Discussed in Post: OPA3S328

    The transimpedance amplifier (TIA) is one of the most common circuits in the world of precision analog circuits. The dynamic range required of a single TIA can be quite a challenge, often spanning many decades, such as picoamperes to microamperes.

     Selecting a single resistor to accommodate such a wide dynamic range is a lose-lose situation, so circuit designers will often turn to…

    • Oct 14, 2021
  • How 3D Hall-effect sensors deliver precise, real-time position control to autonomous systems

    Kevyn Robins
    Kevyn Robins
    Other Parts Discussed in Post: TMAG5170

    As Industry 4.0 spreads advanced manufacturing processes across global markets, demand for highly automated systems that operate with an integrated manufacturing flow and constantly collect process control data is increasing drastically. Most of these systems – including magnetic encoders in robotic arms, proximity sensors, actuators, pressure transmitters, linear motors and autonomous…

    • Oct 11, 2021
  • Do I need more slew rate or bandwidth in my high-speed, low-side current shunt measurement?

    Marek Lis
    Marek Lis
    Other Parts Discussed in Post: OPA391, OPA392

    In applications measuring high current levels through a resistive shunt, the differential voltage developed across a tiny shunt is typically very small in order to minimize the power dissipation inside the sensing resistor – in the range of just a few millivolts. Contrary to popular belief, the slew rate of the op amp has little bearing on its performance due to the small signal…

    • Sep 21, 2021
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