Tech Library
Solution Guides
Nov. 2022
[Solution Guide]
One of the well-established key requirements in solar inverters is their high efficiency. But also, their costs, size and weight are subject to continuous improvements. One approach to better fulfil all these demanding requirements simultaneously is the use of multilevel topologies.
The main advantages of switching between multiple voltage levels are lower voltage stress for the semiconductors and lower ripple stress for the power chokes.
This means that lower-voltage semiconductors can be used, which are typically cheaper.
Lower ripple stress for the chokes makes smaller and thereby lighter and cheaper choke designs possible.
The flying capacitor topology is a multilevel topology, that is an interesting choice especially for (but not limited to) the booster stage of a solar inverter. As its name implies, it needs a capacitor as a key element. This article describes and compares possible TDK solutions therefor.
One of the well-established key requirements in solar inverters is their high efficiency. But also, their costs, size and weight are subject to continuous improvements. One approach to better fulfil all these demanding requirements simultaneously is the use of multilevel topologies.
The main advantages of switching between multiple voltage levels are lower voltage stress for the semiconductors and lower ripple stress for the power chokes.
This means that lower-voltage semiconductors can be used, which are typically cheaper.
Lower ripple stress for the chokes makes smaller and thereby lighter and cheaper choke designs possible.
The flying capacitor topology is a multilevel topology, that is an interesting choice especially for (but not limited to) the booster stage of a solar inverter. As its name implies, it needs a capacitor as a key element. This article describes and compares possible TDK solutions therefor.
Solution Guides
Dez. 2021
[Solution Guide]
In the automotive field, CPUs and FPGAs for systems that require advanced image processing, such as onboard ADAS ECUs and autonomous ECUs, need to operate at high speed and require high drive current in conjunction with the increasing performance and functionality of systems. Also, in the ICT field, power supply configurations that support higher current required for devices that need huge amounts of power such as servers. There is a trend towards higher operating speeds and higher currents in the power supply lines of systems with increased performance and functions as described above. At the same time, power supply structures that maintain the nominal voltage within narrow tolerance ranges, which have decreased in conjunction with processor miniaturization, are also required.
In the automotive field, CPUs and FPGAs for systems that require advanced image processing, such as onboard ADAS ECUs and autonomous ECUs, need to operate at high speed and require high drive current in conjunction with the increasing performance and functionality of systems. Also, in the ICT field, power supply configurations that support higher current required for devices that need huge amounts of power such as servers. There is a trend towards higher operating speeds and higher currents in the power supply lines of systems with increased performance and functions as described above. At the same time, power supply structures that maintain the nominal voltage within narrow tolerance ranges, which have decreased in conjunction with processor miniaturization, are also required.
Solution Guides
Nov. 2020
[Solution Guide]
NFC ist eine Abkürzung für Near Field Communication; es handelt sich um eine Art drahtloser Kommunikation mit kurzer Reichweite.
NFC ist eine Funktion, die Datenkommunikation und Authentisierung durchführen kann, wenn zwei NFC-kompatible Geräte in die Nähe zueinander gebracht werden, und ihr Einsatz in Smartphones hat in den letzten Jahren stark zugenommen.
Auch in Peripheriegeräten einschließlich tragbarer Endgeräte, wie z.B. Smart-Uhren, ist ein zunehmender Einsatz von NFC zu beobachten.
NFC wird in vielen Situationen eingesetzt, u.a. beim bargeldlosen Bezahlen und bei der Authentifizierung von Verbindungen mit Peripheriegeräten, und es wird erwartet, dass es auf dem Weg zu einer berührungslosen Gesellschaft für noch vielfältigere Anwendungen eingesetzt werden wird.
Dieser Artikel stellt die wichtigsten Komponenten vor, die in NFC-Schaltungen verwendet werden: NFC-Antenne, Magnetblech, LC-Filterinduktivität, Ein-End-Schaltungsbalun und elektrischer Doppelschichtkondensator (EDLC/Superkondensator).
NFC ist eine Abkürzung für Near Field Communication; es handelt sich um eine Art drahtloser Kommunikation mit kurzer Reichweite.
NFC ist eine Funktion, die Datenkommunikation und Authentisierung durchführen kann, wenn zwei NFC-kompatible Geräte in die Nähe zueinander gebracht werden, und ihr Einsatz in Smartphones hat in den letzten Jahren stark zugenommen.
Auch in Peripheriegeräten einschließlich tragbarer Endgeräte, wie z.B. Smart-Uhren, ist ein zunehmender Einsatz von NFC zu beobachten.
NFC wird in vielen Situationen eingesetzt, u.a. beim bargeldlosen Bezahlen und bei der Authentifizierung von Verbindungen mit Peripheriegeräten, und es wird erwartet, dass es auf dem Weg zu einer berührungslosen Gesellschaft für noch vielfältigere Anwendungen eingesetzt werden wird.
Dieser Artikel stellt die wichtigsten Komponenten vor, die in NFC-Schaltungen verwendet werden: NFC-Antenne, Magnetblech, LC-Filterinduktivität, Ein-End-Schaltungsbalun und elektrischer Doppelschichtkondensator (EDLC/Superkondensator).
Solution Guides
Jan. 2019
[Solution Guide]
If communication waves from cellular or Wi-Fi sources interfere with and intrude into microphone lines for smartphones or other devices, some of their components will become noise components in audible bands known as "TDMA noise", and may be emitted from speakers as unpleasant sound. Countermeasures which implement combinations of TDK's noise suppression filters and ESD Notch Filters can not only demonstrate outstanding effectiveness at suppressing TDMA noise with no effect on signals, but can also provide a variety of other benefits such as improving cellular or Wi-Fi communication reception sensitivity, and providing countermeasures against ESD (electrostatic discharge).
If communication waves from cellular or Wi-Fi sources interfere with and intrude into microphone lines for smartphones or other devices, some of their components will become noise components in audible bands known as "TDMA noise", and may be emitted from speakers as unpleasant sound. Countermeasures which implement combinations of TDK's noise suppression filters and ESD Notch Filters can not only demonstrate outstanding effectiveness at suppressing TDMA noise with no effect on signals, but can also provide a variety of other benefits such as improving cellular or Wi-Fi communication reception sensitivity, and providing countermeasures against ESD (electrostatic discharge).