Tech Library
Applications & Cases
[Application Note]
Increased demand for comfort functions and higher performing Advanced Driver Assistance Systems (ADAS) are requiring faster in-vehicle transmission interfaces. For image transmission using SerDes (LVDS), PoC (Power over Coax) has become mainstream to reduce the weight of the wiring harness by transmitting signal and supplying power within a single coaxial cable. The evolution of cameras used in automobiles continues with increased current capacity and faster image transmission for higher resolution images, as well as heating functions to defog the camera lens.
This article presents examples of the use and effects of PoC filter inductors and chip beads.
Increased demand for comfort functions and higher performing Advanced Driver Assistance Systems (ADAS) are requiring faster in-vehicle transmission interfaces. For image transmission using SerDes (LVDS), PoC (Power over Coax) has become mainstream to reduce the weight of the wiring harness by transmitting signal and supplying power within a single coaxial cable. The evolution of cameras used in automobiles continues with increased current capacity and faster image transmission for higher resolution images, as well as heating functions to defog the camera lens.
This article presents examples of the use and effects of PoC filter inductors and chip beads.
Applications & Cases
[Application Note]
Protective measures are essential for ESD (Electrostatic Discharge) to prevent malfunctions or failures in electronic devices. However because these components are mounted directly on the line, selecting inappropriate ESD protective components can affect the signal on the line even under normal conditions. Examples include high-speed communication lines with differential signals, such as those used in automotive communications' CAN (Controller Area Network) and Ethernet. These can exhibit significant impacts, not only deteriorating communication quality but also potentially affecting EMC (Electromagnetic Compatibility) performance in the worst cases.
Protective measures are essential for ESD (Electrostatic Discharge) to prevent malfunctions or failures in electronic devices. However because these components are mounted directly on the line, selecting inappropriate ESD protective components can affect the signal on the line even under normal conditions. Examples include high-speed communication lines with differential signals, such as those used in automotive communications' CAN (Controller Area Network) and Ethernet. These can exhibit significant impacts, not only deteriorating communication quality but also potentially affecting EMC (Electromagnetic Compatibility) performance in the worst cases.
Applications & Cases
[Application Note]
TDK offers a lineup of multilayer chip varistors to protect equipment from failing due to surge voltages. In the TDK Product Center, you can find individual product data sheets and product catalogs describing various electrical characteristics. However, (1) it does not show how to read or use the data sheet. (2) It is difficult to narrow down the parts that are optimal for countermeasures against surge voltage. Therefore, the problems are to spend time on component selection ~ evaluation.
In order to solve these problems, we will introduce a simulation tool for multilayer chip varistors that can select the optimal components for countermeasures against surge voltage.
TDK offers a lineup of multilayer chip varistors to protect equipment from failing due to surge voltages. In the TDK Product Center, you can find individual product data sheets and product catalogs describing various electrical characteristics. However, (1) it does not show how to read or use the data sheet. (2) It is difficult to narrow down the parts that are optimal for countermeasures against surge voltage. Therefore, the problems are to spend time on component selection ~ evaluation.
In order to solve these problems, we will introduce a simulation tool for multilayer chip varistors that can select the optimal components for countermeasures against surge voltage.
Applications & Cases
[Application Note]
In today's data-driven world, enterprises across various industries recognize the immense potential of machine learning (ML) and artificial intelligence (AI) to drive innovation, gain competitive advantage, and deliver better business outcomes. However, developing and deploying ML models can be complex, time-consuming, resource-intensive, and often require specialized expertise.  
 
Qeexo's Auto Machine Learning (AutoML) platform offers a comprehensive solution that automates and simplifies the process of building and scaling ML models without the need for expensive experts.
Further, the solution can build and deploy ML models on edge devices with ease to add an additional layer of security, efficiency, and real-time decision making.
In today's data-driven world, enterprises across various industries recognize the immense potential of machine learning (ML) and artificial intelligence (AI) to drive innovation, gain competitive advantage, and deliver better business outcomes. However, developing and deploying ML models can be complex, time-consuming, resource-intensive, and often require specialized expertise.  
 
Qeexo's Auto Machine Learning (AutoML) platform offers a comprehensive solution that automates and simplifies the process of building and scaling ML models without the need for expensive experts.
Further, the solution can build and deploy ML models on edge devices with ease to add an additional layer of security, efficiency, and real-time decision making.
Applications & Cases
[Application Note]
Due to the widespread adoption of cloud computing, smartphones, and the continuous advancement of 5G technology, data being transmitted over the internet has been steadily increasing. This growth is fueled by evolving technologies, such as AI, and the increasing use of data-driven practices like big data and IoT, which are driving the evolution of digital transformation (DX).
In response to these market trends, semiconductor processors like CPU, GPU, FPGA, and others have made significant strides in their manufacturing process technology, with a notable focus on miniaturization. These advancements have led to increased gate integrations per unit area, higher operating frequencies, and substantial improvements in information processing capabilities.
In line with the improvement in processor capabilities, there have also been significant advancements in Server Power Circuits.
Due to the widespread adoption of cloud computing, smartphones, and the continuous advancement of 5G technology, data being transmitted over the internet has been steadily increasing. This growth is fueled by evolving technologies, such as AI, and the increasing use of data-driven practices like big data and IoT, which are driving the evolution of digital transformation (DX).
In response to these market trends, semiconductor processors like CPU, GPU, FPGA, and others have made significant strides in their manufacturing process technology, with a notable focus on miniaturization. These advancements have led to increased gate integrations per unit area, higher operating frequencies, and substantial improvements in information processing capabilities.
In line with the improvement in processor capabilities, there have also been significant advancements in Server Power Circuits.
Applications & Cases
[Application Note]
The NTC thermistor is a thermally sensitive resistor whose resistance decreases rapidly as the temperature rises. This property can be utilized in various applications such as temperature sensors and thermal protection devices to protect circuits from overheating.
By mounting the NTC thermistor in close proximity to the heat source, it can accurately sense the temperature of the heat source. However, in some cases, such as when there are constraints on the size of the board or the pattern layout, it may need to be mounted in a location away from the heat source.
In this article, considering such conditions, we used the LEDs on the LED flash circuit board as the heat source and simulated heat generation to check the temperature difference between the LEDs and the NTC thermistors caused by the different mounting positions. We also checked the effect of circuit board thickness.
The NTC thermistor is a thermally sensitive resistor whose resistance decreases rapidly as the temperature rises. This property can be utilized in various applications such as temperature sensors and thermal protection devices to protect circuits from overheating.
By mounting the NTC thermistor in close proximity to the heat source, it can accurately sense the temperature of the heat source. However, in some cases, such as when there are constraints on the size of the board or the pattern layout, it may need to be mounted in a location away from the heat source.
In this article, considering such conditions, we used the LEDs on the LED flash circuit board as the heat source and simulated heat generation to check the temperature difference between the LEDs and the NTC thermistors caused by the different mounting positions. We also checked the effect of circuit board thickness.
Applications & Cases
[Application Note]
Mit dem wachsenden Markt für elektrifizierte Fahrzeuge (EVs) steigt die Nachfrage nach Onboard-Chargern (OBCs) schnell an. OBCs eröffnen die Möglichkeit, Fahrzeuge nicht nur an Schnellladestationen für Gleichstrom, sondern auch mit Wechselstromquellen in angemessener Zeit aufzuladen. Solche Systeme reichen derzeit bis zu 22 kW mit Betriebsspannungen bis zu 800 V. Die Aufgabe des OBC besteht darin, die Wechselspannung aus einer externen Quelle in eine spezifische Gleichspannung umzuwandeln, die auf den Anforderungen des Batteriemanagement-Systems basiert. Dadurch kann ein batterieschonender und schneller Ladevorgang erreicht werden. Insbesondere in abgelegenen Gebieten ohne ausreichende DC-Schnellladeinfrastruktur sind OBCs unverzichtbar, um die Attraktivität von E-Fahrzeugen zu steigern.Wegen der Komplexität solcher Systeme benötigen OBCs eine gewisse Kapazität, um die Gleichspannung, mit der die Batterie geladen wird, zu stabilisieren. Aluminium-Elektrolyt-Kondensatoren sind hier eine attraktive Lösung, da sie die wichtigsten Anforderungen erfüllen können, wie z. B. hohe Spannungen von bis zu 500 V, große Kapazitäten von bis zu 820 µF und hohe Ripplestrom-Belastbarkeit bei einem Betriebstemperaturbereich von -40 °C bis 105 °C.
Mit dem wachsenden Markt für elektrifizierte Fahrzeuge (EVs) steigt die Nachfrage nach Onboard-Chargern (OBCs) schnell an. OBCs eröffnen die Möglichkeit, Fahrzeuge nicht nur an Schnellladestationen für Gleichstrom, sondern auch mit Wechselstromquellen in angemessener Zeit aufzuladen. Solche Systeme reichen derzeit bis zu 22 kW mit Betriebsspannungen bis zu 800 V. Die Aufgabe des OBC besteht darin, die Wechselspannung aus einer externen Quelle in eine spezifische Gleichspannung umzuwandeln, die auf den Anforderungen des Batteriemanagement-Systems basiert. Dadurch kann ein batterieschonender und schneller Ladevorgang erreicht werden. Insbesondere in abgelegenen Gebieten ohne ausreichende DC-Schnellladeinfrastruktur sind OBCs unverzichtbar, um die Attraktivität von E-Fahrzeugen zu steigern.Wegen der Komplexität solcher Systeme benötigen OBCs eine gewisse Kapazität, um die Gleichspannung, mit der die Batterie geladen wird, zu stabilisieren. Aluminium-Elektrolyt-Kondensatoren sind hier eine attraktive Lösung, da sie die wichtigsten Anforderungen erfüllen können, wie z. B. hohe Spannungen von bis zu 500 V, große Kapazitäten von bis zu 820 µF und hohe Ripplestrom-Belastbarkeit bei einem Betriebstemperaturbereich von -40 °C bis 105 °C.