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  • How a stand-alone active EMI filter IC shrinks common-mode filter size

    Timothy Hegarty
    Timothy Hegarty
    Other Parts Discussed in Post: TPSF12C3-Q1, TPSF12C1-Q1

    Automotive on-board chargers and server power supplies are highly constrained system environments where power density is a primary metric. It’s important to reduce the volume of the electromagnetic interference (EMI) filter components so that the solution can fit into demanding form factors.

    Common-mode (CM) filters for these and other high-density applications…

    • Mar 19, 2023
  • 13 reasons to start using Power Stage Designer

    Markus Zehendner
    Markus Zehendner

    For more than a decade, TI’s Power Stage Designer  tool has been a great design aid for electrical engineers when calculating the currents and voltages of different power-supply topologies. I believe it is an easy tool to start a new power-supply design, because it executes all calculations in real time, and you get direct feedback.

    Our latest version of Power Stage Designer includes a new topology and two new design…

    • Mar 10, 2023
  • 5 converter topologies for integrating solar energy and energy storage systems

    Harald Parzhuber
    Harald Parzhuber
    Other Parts Discussed in Post: TIDA-01606, TIDA-010210

    With energy storage systems prices becoming more affordable and electricity prices going up, the demand for renewable energy sources is increasing. Many residences now use a combined solar energy generation and battery energy storage system to make energy available when solar power is not sufficient to support demand. Figure 1 illustrates a residential use case and…

    • Feb 27, 2023
  • Key considerations for advancing satellite electrical power systems

    Kurt Eckles
    Kurt Eckles
    Other Parts Discussed in Post: TPS7H5001-SP, TPS7H5005-SEP, TPS7H5002-SP, TPS7H5006-SEP, TPS7H5003-SP, TPS7H5007-SEP, TPS7H5004-SP, TPS7H5008-SEP

    Satellite power design has a complex set of trade-offs given that the design has more variables, and the number of semiconductor options are significantly smaller than those in commercial applications. A satellite’s primary power supply is especially important, since if it fails…

    • Oct 31, 2022
  • How GaN enables high efficiency in totem-pole PFC-based power designs

    Noah Rodriguez
    Noah Rodriguez

    Almost all modern-day industrial systems involve an AC/DC power supply, which takes energy from the AC grid and delivers it to electrical equipment as a well-regulated DC voltage. With power consumption increasing around the globe, the associated energy loss in the AC/DC power-conversion process becomes a significant component of the overall energy cost equation for power-supply designers, especially those working on…

    • Oct 31, 2022
  • Managing thermals: 3 ways to break through power-density barriers

    Robert Taylor1
    Robert Taylor1
    Other Parts Discussed in Post: TPS566242, TPS25985, TLVM13660

    The number of semiconductors in nearly every application is multiplying, and many of the design challenges facing electronics engineers all tie back to the need for greater power density. A few example applications come to mind:

    • Hyperscale data centers: Rack servers are using an incredible amount of power, challenging utility companies and power engineers to…
    • Oct 16, 2022
  • How a fully-stackable eFuse can help meet ever-increasing power needs of servers

    Ritesh Oza
    Ritesh Oza
    Other Parts Discussed in Post: TPS25985, TPS25990

    As demand for data increases, so does demand for servers and data centers, and thus higher demand for power. Industry trends suggest that power per rack, which was 4 kW in 2020, will be as high as 20 kW in 2025.

    Given limited physical real estate available for data centers and servers, the delivery of more power in less area is known as a high power density requirement…

    • Oct 3, 2022
  • How to design high-voltage systems with higher reliability while reducing solution size and cost

    Tim Merkin
    Tim Merkin
    Other Parts Discussed in Post: TPSI3050, TPSI2140-Q1

    High-voltage industrial and automotive systems such as factory automation equipment, grid infrastructure applications, motor drives and electric vehicles (EVs) can generate several hundred to thousands of volts, which poses a significant safety risk to humans and can reduce equipment lifetimes. This article explains how to keep these HV systems safe by utilizing the…

    • Jun 8, 2022
  • How to achieve higher-reliability isolation and a smaller solution size with solid-state relays

    Pedro Arango Ramirez
    Pedro Arango Ramirez
    Other Parts Discussed in Post: TPSI3050-Q1, TPSI2140-Q1

    Relays have been used as switches since before the transistor was invented. The ability to safely control high-voltage systems from lower-voltage signals, as is the case in isolation resistance monitoring, is necessary for the development of many automotive systems. While the technology of electromechanical relays and contactors has improved over the years, it is…

    • May 9, 2022
  • Is GaN reliable, or is that the right question?

    Sandeep Bahl
    Sandeep Bahl

    The adoption of gallium nitride (GaN) field-effect transistor (FET) is rapidly increasing, given its ability to improve efficiency and shrink the size of power supplies. But before investing in the technology, you may still be asking yourself whether GaN is reliable. It strikes me that no one asks whether silicon is reliable. After all, there are still new silicon products coming out all the time, and power-supply designers…

    • Apr 21, 2022
  • How buck regulators with integrated capacitors help lower EMI and save board space

    Harrison Overturf
    Harrison Overturf
    Other Parts Discussed in Post: LMQ61460-Q1, LMQ66430-Q1

    It’s a challenge to create highly efficient and compact designs while also adhering to strict electromagnetic interference (EMI) requirements imposed by groups such as Comité International Spécial des Perturbations Radioélectriques (CISPR). Therefore, component selection becomes a critical part of the design process. As with most design decisions, choosing between…

    • Mar 16, 2022
  • Increasing power density with an integrated GaN solution

    Alexander Zahabizadeh
    Alexander Zahabizadeh
    Other Parts Discussed in Post: UCC5350-Q1, LMG3522R030-Q1, UCC25800-Q1, UCC14240-Q1

    Gallium nitride (GaN) is a popular topic in the power electronics industry, as it enables designs such as 80 Plus titanium power supplies, 3.8-kW/L electric vehicle (EV) onboard chargers and EV charging stations. In many applications, GaN replaces traditional silicon metal-oxide-semiconductor field-effect transistors (MOSFETs) given its…

    • Mar 14, 2022
  • How innovative packaging can drive higher power density in load switches

    Aleksandras_Kaknevicius
    Aleksandras_Kaknevicius
    Other Parts Discussed in Post: TPS22992, TPS22964C, TPS22975, TPS22998

    From smartphones to cars, consumers are demanding more features packed into increasingly smaller products. To help with this trend, TI has optimized its packaging technology for our semiconductor devices, including the load switches used for subsystem control and power sequencing. Packaging innovation enables greater power density, making it possible…

    • Feb 23, 2022
  • Managing power-supply noise with a 30-V gate driver

    Sam Wallace
    Sam Wallace
    Other Parts Discussed in Post: UCC27624, UCC27614

    The world is a noisy place – and power supplies are no exception. In the pursuit of higher efficiency, power converters switching at faster and faster speeds create unintended issues, including increasing the system’s susceptibility to transients and noise.  It’s important to consider this susceptibility when choosing how to design your power supplies, and what…

    • Dec 7, 2021
  • 3 ways to design a low quiescent-current (Iq) automotive reverse battery protection system

    Dilip Jain
    Dilip Jain
    Other Parts Discussed in Post: LM74722-Q1, LM74721-Q1, LM74720-Q1

    The increasing number of electronic circuits in vehicles is placing greater demand on the amount of power consumed from the battery. The battery supply remains on even when the car is parked or turned off, in order to support such features as remote key entry and security.

    Since all vehicles run on a finite battery supply, it’s important to find a way to…

    • Nov 18, 2021
  • 3 quiescent-current (Iq) specifications you need to understand

    Chris Glaser
    Chris Glaser
    Other Parts Discussed in Post: TPS62840, BQ21061, TPS61094, BQ25120A, TPS61099

    A common definition of quiescent current (IQ) is the current drawn by an integrated circuit (IC) in a no-load and nonswitching but enabled condition. A broader and more useful way to think about it is that quiescent current is the input current consumed by an IC in any number of its ultra-low-power states.

    For battery-powered applications, this…

    • Nov 12, 2021
  • 3 benefits of using a low-Iq buck/boost converter to extend battery life in flow meters

    Wenhao Wu
    Wenhao Wu
    Other Parts Discussed in Post: TPS61094

    (Co-authored by Alex Pakosta)

    Lithium thionyl chloride (LiSOCI2) batteries are popular in smart flow meters because they provide higher energy density and a better cost-per-wattage ratio than battery chemistries such as lithium manganese dioxide (LiMnO2). One disadvantage of LiSOCl2 batteries is poor response to peak loads, which can result in a decrease of the usable battery capacity…

    • Nov 2, 2021
  • Effective ways to implement backup power from supercapacitors

    Alexander Pakosta
    Alexander Pakosta
    Other Parts Discussed in Post: TPS61094, TPS61022, TPS63802

    (Co-authored by Wenhao Wu)

    Effective ways to implement backup power from supercapacitors

    Many modern, smart Internet-of-things (IoT) devices that run from line power need backup power to safely power down or to perform last-gasp communication in the event of an unexpected power outage. For example, an electricity meter could share details about the time, location…

    • Nov 2, 2021
  • Driving next-generation EV systems with a distributed architecture

    John Stevens
    John Stevens
    Other Parts Discussed in Post: UCC14240-Q1

    Electric vehicles (EVs) and hybrid EVs (HEVs) are changing, as are the electronics inside them. The increasing amount of electronics plays a significant role in the overall form and function of these vehicles. Drivers, however, haven’t changed; they still expect their EVs and HEVs to drive further without stopping, become more affordable, charge faster, and keep them safe. But…

    • Sep 27, 2021
  • What’s not in the power MOSFET data sheet part 2: voltage-dependent leakage currents

    John Wallace1
    John Wallace1
    Other Parts Discussed in Post: CSD15380F3

    In part 1 of this series, I reviewed power metal-oxide semiconductor field-effect transistor (MOSFET) data sheets and explained what’s in the data sheet and more importantly, what’s not, while specifically looking at the temperature dependence of some key MOSFET parameters. In part 2, I’ll focus on voltage-dependent leakage currents – the drain-to-source leakage (I…

    • Jul 23, 2021
  • Which pinout is best? How individual, multifunctional and trimmed pinouts help address design challenges

    Vikram Sundaram
    Vikram Sundaram
    Other Parts Discussed in Post: TPS54620, TPS566231, TPS62903, TPS543620

    The features of a modern buck converter are simply tools to get a job done – and much like the utility belt of a certain Gotham City resident, the configuration and layout of these features were designed with space and flexibility in mind. Whether you wear a cape or not, having quick and easy access to these features means more than just solving design…

    • Jun 28, 2021
  • Three reasons to add a voltage supervisor to your next wearable power design

    Ben C
    Ben C
    Other Parts Discussed in Post: TLV841

    Within the last decade, manufacturers of wearable technologies such as smartwatches have made significant advancements in enabling users to track their personal health and fitness in real time. It’s now possible to leverage a wealth of statistics, such as step count, heart rate, oxygen saturation, workout duration and more, and track progress toward fitness goals in a variety of ways…

    • Jun 17, 2021
  • Increasing power density with dual-channel power modules

    Aaron Grgurich
    Aaron Grgurich
    Other Parts Discussed in Post: TPSM5D1806

    The constant push for more component integration and greater power density, on top of demanding project schedules, can leave engineers in difficult situations when designing a system power architecture. Looking specifically at test and measurement or optical module applications, the problem statement is no longer limited to the area (x-axis and y-axis) of the design; rather, it…

    • Jun 14, 2021
  • 1 PWM controller, 3 unique challenges – solved for string inverters, motor drives and e-meters

    Dante Toppi
    Dante Toppi
    Other Parts Discussed in Post: UCC28C44

    If you’re designing with controllers for industrial equipment, you’ve likely asked yourself such questions as:

    • “What voltage levels do I need?”
    • “Do I care about the current level?”
    • “What frequency does the controller need to run at?"
    • “Will this device need to withstand high temperatures and magnetic immunity?”

    Some of…

    • May 20, 2021
  • Bulk up your 24-VDC power distribution with industrial high-side switches

    Paul Kundmueller
    Paul Kundmueller
    Other Parts Discussed in Post: TPS272C45, TPS274160

    For athletes to perform at their highest level – to run a mile in less than five minutes or leap into the air and dunk a basketball – they need strong muscles. The heart supplies blood through the veins to the muscles to enable movements such as gripping an object with your hand or moving a finger when your brain instructs it to. But without muscles, these spectacular…

    • May 4, 2021
>
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