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Power management
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  • Improving industrial radar RF performance with low-noise, thermal-optimized power solutions

    shashank sharma
    shashank sharma
    Other Parts Discussed in Post: IWR1843, IWR6843, LP87702, LP87702-Q1

    For years, passive infrared sensors and lasers have sensed remote objects or measured range in applications such as robotics, level sensing, people counting, automated doors and gates, and traffic monitoring. But with demand for higher precision and resiliency against environmental influences such as bad light, harsh weather conditions and extreme temperatures…

    • Apr 21, 2021
  • Introduction to EMI: Standards, causes and mitigation techniques

    Yogesh Ramadass
    Yogesh Ramadass
    Other Parts Discussed in Post: LM5156-Q1, LM62440-Q1, LM25149-Q1

    Electronic systems in industrial, automotive and personal computing applications are becoming increasingly dense and interconnected. To improve the form factor and functionality of these systems, diverse circuits are packed in close proximity. Under such constraints, reducing the effects of electromagnetic interference (EMI) becomes a critical system design…

    • Apr 21, 2021
  • How to choose the right LDO for your satellite application

    Sree Alvarado
    Sree Alvarado
    Other Parts Discussed in Post: TPS7H1101A-SP

    Radiation-hardened low-dropout regulators (LDOs) are vital power components of many space-grade subsystems, including field-programmable gate arrays (FPGAs), data converters and analog circuitry. LDOs help ensure a stable, low-noise and low-ripple supply of power for components whose performance depends on a clean input.

    But with so many LDOs available on the market, how do…

    • Apr 9, 2021
  • How to reduce EMI and shrink power-supply size with an integrated active EMI filter

    Orlando Murray
    Orlando Murray
    Other Parts Discussed in Post: LM25149-Q1 This technical article is co-authored by Tim Hegarty Design engineers working on low-electromagnetic interference (EMI) applications typically face two major challenges: the need to reduce the EMI of their de...
    • Apr 5, 2021
  • Monitoring 12-V automotive battery systems: Load-dump, cold-crank and false-reset management

    Ben C
    Ben C
    Other Parts Discussed in Post: LM5060-Q1, TPS38A-Q1, TPS37A-Q1

    The 12-V lead-acid battery is a staple in automotive electronic systems such as automotive cockpits, clusters, head units and infotainment. Monitoring the battery voltage is necessary in order to maintain and support the power requirements of the modern vehicle. Although automotive batteries can withstand wide voltage transients that exceed their nominal voltage…

    • Mar 24, 2021
  • How to choose the right battery-charger IC for ultrasound point-of-care products

    Jing Zou
    Jing Zou
    Other Parts Discussed in Post: BQ24610, BQ25713, BQ25790, BQ25792, BQ25892, BQ25895

    Advancements in ultrasound imaging technology, along with rising demand for minimally invasive diagnostics and therapeutics, have made it possible to implement ultrasound applications for medical use. For example, employing ultrasound for remote patient monitoring has become increasingly popular given its cost-effective, safe and fast diagnostic…

    • Mar 24, 2021
  • Lowering audible noise in automotive applications with TI’s DRSS technology

    Samuel Jaffe
    Samuel Jaffe
    Other Parts Discussed in Post: LM61495-Q1Automotive systems have many regulations and requirements, from electromagnetic interference (EMI) to thermals to functional safety, but one consideration that stands above the rest when it comes to immediate ...
    • Mar 18, 2021
  • How to stack battery monitors for high-cell-count industrial applications

    Shawn Hinkle
    Shawn Hinkle
    Other Parts Discussed in Post: BQ76952, ISO1541As we begin to see battery technology in more applications, new challenges arise. Many applications in the industrial space require higher cell counts than battery-powered applications such as cellphones...
    • Feb 11, 2021
  • The value of a thin, isolated power solution

    Orlando Murray
    Orlando Murray
    Other Parts Discussed in Post: UCC12051-Q1

    Faced with shrinking space constraints and increased robustness requirements, industrial and automotive power-supply designers must carefully choose the best power design topologies to meet their application needs. Isolated choices include modules as well as discrete and integrated solutions; each has its own trade-offs. Modules are encapsulated solutions with common input/output…

    • Feb 2, 2021
  • What’s not in the power MOSFET data sheet, part 1: temperature dependency

    John Wallace1
    John Wallace1
    Other Parts Discussed in Post: CSD17576Q5B, CSD19532Q5B

    Power metal-oxide semiconductor field-effect transistor (MOSFET) data sheets provide useful information such as key specifications, ratings and characteristics to help you confirm that the device will operate as intended. You may have questions about how a parameter varies, however, so in this article I’ll explain not just what’s in the data sheet but more importantly…

    • Dec 30, 2020
  • 3 ways to reduce power-supply noise with power modules

    Sheetal Liddar
    Sheetal Liddar

    Noise is an unwelcomed electrical phenomenon that commonly originates in the power supply. If not reduced, noise can adversely impact the performance of applications in sensitive medical, test and measurement, and aerospace and defense systems.

    Today’s high-precision analog signal-chain systems require DC/DC switching regulators to generate regulated power-supply rails for powering analog-to-digital converters (ADCs)…

    • Dec 15, 2020
  • Enhance thermal management in EVs with autonomous cell balancing

    Sudhir Nagaraj
    Sudhir Nagaraj
    Other Parts Discussed in Post: BQ79616-Q1

    Cell balancing is important in battery management systems for electric vehicles (EVs) because it helps extend vehicle driving ranges and ensure safe EV battery operation. Cell balancing is also required in order to correct imbalances in the battery itself. All batteries, including those found in EVs, experience unbalancing over time caused by mismatches during manufacturing processes…

    • Dec 9, 2020
  • How to choose your Type 3 (<51-W) PoE power topology

    Brett Colteaux
    Brett Colteaux
    Other Parts Discussed in Post: TPS23730

    Designers have several topologies to choose from when designing 51-W isolated DC/DC power over Ethernet (PoE) systems. In a perfect world, each topology would cost nothing, have 100% efficiency and be smaller than a grain of sand. But since that isn’t possible, system designers are forced to choose the topology that closest meets their needs. In this article, I’ll discuss three…

    • Dec 8, 2020
  • Conserve battery power in HEV/EVs with automatic host reverse wakeup

    Deepak Uppal
    Deepak Uppal
    Other Parts Discussed in Post: BQ79600-Q1, BQ79616-Q1

    As more vehicles become electrified, the need to achieve the highest levels of functional safety with high-accuracy battery monitoring is paramount. Yet in order to improve battery-monitoring accuracy, the vehicle’s battery management system must work efficiently in real time to monitor the performance of the individual battery cells within.

    In typical hybrid…

    • Dec 4, 2020
  • Automotive GaN FETs engineered for high frequency and robustness in HEV/EVs

    Ramanan Natarajan
    Ramanan Natarajan

    Intent on accelerating electric vehicle (EV) adoption by addressing top consumer concerns such as driving range, charge time and affordability, automakers worldwide are demanding increased battery capacity and faster charging capability, with little to no increase in size, weight or component cost.

    The EV onboard charger (OBC), which allows consumers to recharge the battery directly from an AC main at home or at public…

    • Nov 30, 2020
  • Powering medical imaging applications with DC/DC buck converters

    Jonathan Riley2
    Jonathan Riley2
    Other Parts Discussed in Post: LMQ61460, LMZ34002

    From cart-based ultrasound scanners to portable smart probes that send images directly to a smartphone, the world of ultrasound imaging continues to diversify. Despite architectural differences in their design, every ultrasound system needs a DC power supply that can efficiently meet the power demands of the system and avoid interference with the ultrasound frequency range…

    • Nov 24, 2020
  • How GaN FETs with integrated drivers and self-protection will enable the next generation of industrial power designs

    Arianna Rajabi
    Arianna Rajabi
    Other Parts Discussed in Post: LMG3425R030, LMG3422R030, LMG3422R050, LMG3425R050

    Physics has caught up with silicon devices. The traditional workhorses of power supplies – metal-oxide semiconductor field-effect transistors (MOSFETs) and insulated gate bipolar transistors (IGBTs) – can only boost power density if you sacrifice efficiency, form factor and heat dissipation.

    Enter gallium nitride (GaN) semiconductors…

    • Nov 17, 2020
  • Adding USB Type-C® with USB Power Delivery to battery-powered applications

    Eric Beljaars
    Eric Beljaars
    Other Parts Discussed in Post: TPS25750, BQ25792, BQ25731

    Upal Patel co-authored this article.

    A USB Type-C® port with USB Power Delivery (PD) is becoming the standard port for charging single- and multicell battery-powered devices. Applications such as wireless speakers, power banks and power tools have been transitioning from proprietary charging ports, legacy USB ports and barrel-jack ports to a standardized USB PD…

    • Nov 11, 2020
  • Minimize noise and ripple with a low-noise buck converter

    Steve Schnier
    Steve Schnier
    Other Parts Discussed in Post: TPS62913, TPS62912

    Minimizing noise is a common challenge for engineers designing a power supply for noise-sensitive systems for test and measurement and radio applications, such as clocks, data converters or amplifiers. Although the term “noise” can mean different things to different people, in this article I’ll define noise as low-frequency thermal noise generated by resistors and transistors…

    • Oct 21, 2020
  • The impact of an isolated gate driver’s input stage for motor-drive applications

    Sean Alvarado
    Sean Alvarado
    Other Parts Discussed in Post: UCC23514, UCC5310, UCC5320, UCC5350, UCC5390

    You have many options when selecting an isolated gate driver for the power stage in motor-drive applications. Gate drivers can be simple or complex, with features such as an integrated Miller clamp, split outputs or an undervoltage (UVLO) lockout reference to the emitter of an insulated gate bipolar transistor (IGBT).

    There are two options for…

    • Sep 29, 2020
  • eFuses in factory automation: all-in-one system power protection

    Paul Kundmueller
    Paul Kundmueller

    “All-in-one” sounds so nice, doesn’t it? Nothing encompasses the idea of all-in-one more than the Swiss Army knife, which was first introduced to the world back in 1891 and has become something of a legend given its versatility, small size and low cost. This one tool can help solve a variety of daily challenges and is small enough to fit in your pocket. What more could you ask for?

    Now picture a factory…

    • Sep 15, 2020
  • 5 best practices to extend battery life in flow meters

    Eric Dj
    Eric Dj
    Other Parts Discussed in Post: TPS63900

    Flow meters use lithium manganese dioxide (LiMnO2) and lithium thionyl chloride (LiSOCl2) batteries as energy sources. LiSOCl2 batteries are popular in flow meters because they provide better energy density and a more efficient cost-per-wattage ratio than LiMnO2 batteries. However, LiSOCI2 batteries have a poor impulse response, which can lead to a large drop in voltage during transient…

    • Aug 28, 2020
  • Introduction to the fundamental technologies of power density

    Laszlo B. - HVP
    Laszlo B. - HVP

    The importance and value of power density in modern power-delivery solutions cannot be overstated.

    To better understand the fundamental technologies of high-power-density designs, in this article I’ll examine the four most important aspects of high-power-density solutions:

    • Reduced loss generation.
    • Optimal topology and control selection.
    • Effective heat removal.
    • Reducing system volume through mechanical and electrical…
    • Aug 18, 2020
  • Benefits of rechargeable batteries in real-time location system trackers

    Charles Harthan
    Charles Harthan
    Other Parts Discussed in Post: BQ24040, BQ21061, BQ25619, BQ25155

    Real-time location systems (RTLS) enhance the lives of consumers and businesses by making everyday routines smarter through accurate, location tracking technology such as GPS and Bluetooth® Low Energy. RTLS trackers eliminate the stress of losing belongings such as luggage or pets using long-distance GPS tracking. RTLS trackers also enhance businesses with…

    • Aug 10, 2020
  • Meet airline restrictions with power-path control for dual batteries

    Thomas Regan
    Thomas Regan
    Other Parts Discussed in Post: LM74700-Q1

    With the Federal Aviation Administration restricting the size of batteries allowed on airplanes, it can be challenging to design applications with batteries down to 100 Wh. Some companies design applications using two small batteries instead of one to meet the regulations, but having two batteries often requires the implementation of redundant or duplicate power supplies, which…

    • Jul 21, 2020
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