Blog

  • ANE022 | Coaxial Connectors Electrical Performance Indicators

    ANE022 | Coaxial Connectors Electrical Performance Indicators

    nwieland
    RF connectors are essential components in a variety of electronic devices and communication systems. They are designed to transmit high-frequency signals, such as radio frequency (RF) and microwave signals, with minimal signal loss and high reliability. The coaxial structure, consisting of an inner conductor, insulation layer, and outer conductor, effectively prevents electromagnetic interference and signal degradation…
  • ANP138 | Custom Rated Current Calculator

    ANP138 | Custom Rated Current Calculator

    nwieland
    The definition of rated current continues to vary between passive component manufacturers in the power electronics industry, despite the adoption of IEC standard 62024-2 which specifically describes how rated current should be measured. Because of this, misconceptions can still arise about what this parameter actually represents and how design engineers can use it. Is it an absolute parameter? Are rated current values…
  • ANS020 | Digital isolators

    ANS020 | Digital isolators

    nwieland
    The electrotechnical infrastructure has become very complex in recent years, whether in the industrial environment or in building technology. The decentralized recording of physical parameters is "state of the art" and high-performance microcontrollers facilitate the processing of data. However, recording the data from the object is often a challenge and wireless transmission of the data is frequently not possible. The…
  • ANP141 | The SPoE Interface from an EMC Perspective

    ANP141 | The SPoE Interface from an EMC Perspective

    nwieland
    There are many possible applications for the 10 Mbit/s SPE interface with integrated power transmission, such as operating sensors over larger distances. This Application Note analyzes the EMC performance of the reference design RD041.
  • RD041 | Design of a Single Pair Ethernet System with Power over Data Lines (SPoE)

    RD041 | Design of a Single Pair Ethernet System with Power over Data Lines (SPoE)

    nwieland
    Single Pair Ethernet is becoming increasingly popular in industrial networking due to the simplified cabling with just one twisted pair of wires. If power is also supplied via this, the SPE transmission standard with Power over Data Lines is unbeatable simple, but the implementation not trivial.
  • Zero touch security Internet of Things connectivity

    Zero touch security Internet of Things connectivity

    nwieland
    QuarkLink is a software-based IoT security platform from Crypto Quantique that securely connects IoT devices to server-hosted apps on-premises or in the cloud. QuarkLink uses advanced cryptography techniques to integrate with any root-of-trust for end-to-end security across every IoT device.
  • Electronics for good – mushroom farming in Cambodia using WE technology

    Electronics for good – mushroom farming in Cambodia using WE technology

    nwieland
    Mushroom cultivation has had a long history in Southeast Asian countries, providing essential nutrients for people. However, the problem of traditional mushroom cultivation is high manual work for the Cambodian farmers. With current simple methods of temperature and humidity regulations, the yield depends on the seasonality of rainy, dry and hot season. Most potential to increase their income is to ensure good harvest…
  • Internet of Things

    Internet of Things

    nwieland
    A secure root of trust is a unique identity and a cryptographic key associated with it. Since the entire chain of security relies on this root of trust, it is essential to have a RoT that is unique, immutable and unclonable.
  • Internet of Things

    Internet of Things

    nwieland
    The rapid expansion of IoT technology has been matched by an increased focus on securing these devices against cyber threats. Recent years have witnessed the maturation of the IoT regulatory environment, with lawmakers focusing on two primary objectives:
  • Internet of Things

    Internet of Things

    nwieland
    Designing an IoT solution brings with it a number of challenges. Being multifaceted, IoT applications demand a lot of competence from hardware design to UI development. Under such circumstances, it is rudent to take a modular approach. This means breaking down the architecture into functionally independent blocks. Integrating our sensors enables you to monitor the environment accurately. Our radio modules nsure secure…
  • Elements of an Internet of Things System

    Elements of an Internet of Things System

    nwieland
    An end-to-end IoT solution consists of the following components: Sensors and actuators: This is a part of the system that directly interfaces with the physical environment. Sensors measure the state of the environment and interpret the same as digital data. On the other hand, actuators activate a physical change in the measured environment. Advances in the field of electronics in general and
  • Internet of Things Fundamentals

    Internet of Things Fundamentals

    nwieland
    The Internet of Things (IoT) can be broadly defined as an umbrella term for a range of technologies that enable devices to connect and interact with each other. Interacting devices and the data they generate, provide for a range of new applications. Industrial automation, healthcare, home automation, smart cities, smart grids and smart farming are some of the areas in which IoT provides substantial benefits
  • Combined modules

    Combined modules

    nwieland
    Why combined modules? The combined modules from Würth Elektronik offer a combination of various protocols in just one module.
  • Long-range-WAN

    Long-range-WAN

    nwieland
    Long-Range-WAN Architecture A Long-Range-WAN-enabled end device is wirelessly connected to a long-range-WAN through radio gateways.
  • User application industrial IoT

    User application industrial IoT

    nwieland
    The manufacturing industry has started seeing a growing need for monitoring the condition of their assets and to perform predictive maintenance if needed. The challenge is that smart industries require an industrial IoT connectivity solution, a self-healing mesh network that can handle a demanding radio environment.
  • Long-range-WAN

    Long-range-WAN

    nwieland
    Long-Range and Long-Range-WAN Overview Long-Range is the physical (PHY) layer, the wireless modulation used to create the long-range communication link. LoRa®︎ is created by Semtech. The name, LoRa®︎, is a reference ...
  • ANP123 | Long and Short Term Voltage Dependence of Ferroelectric Class 2 MLCCs

    ANP123 | Long and Short Term Voltage Dependence of Ferroelectric Class 2 MLCCs

    nwieland
    We review the physical background of the voltage-dependent capacitance of class 2 Multilayer Ceramic Capacitors (MLCC) and present models for this dependency. Two processes can be distinguished, leading to an immediate as well as a longterm capacitance dependence on dc voltage. Both processes are related to the ferroelectric properties of class 2 aterials. The immediate process is related to the dipole reorientation within…
  • SN023 | Conducted emissions test

    SN023 | Conducted emissions test

    nwieland
    This support note deals with conducted emission testing in accordance with CISPR 16-2-1, focusing on the test setup and the resulting loop impedances. The aim of the EMC test standards is to reproduce interference mechanisms in a reproducible manner, whereby the realistic reproduction of phenomena is often neglected in favor of reproducibility. A detailed understanding of the test setups is necessary in order to be able…
  • Current sensors

    Current sensors

    nwieland
    Current Transformers (CTs) operate on the principle of inductive coupling, where the primary current induces a magnetic field in the core, which in turn induces a current in the secondary winding proportional to the primary current. Due to their design and construction, CTs are typically bulky in size. They are primarily designed for measuring alternating current (AC) and are not suitable for direct current (DC) measurements…
  • Pressure sensors

    Pressure sensors

    nwieland
    A MEMS pressure sensor is based on a thin membrane. Typically two principles are used. The first principle is based on a change in resistance of integrated resistors caused by the deflection of the membrane. The second principle is based on a capacitive effect: a counter electrode is located below the membrane and based on the deflection of the membrane, the distance and thus the capacitance is changed. WSEN-PADS and…
  • Environmental sensors

    Environmental sensors

    nwieland
    Ever wondered what's truly happening in your environment? Go beyond the surface with environmental sensors, your window into the invisible world around you. These cutting-edge devices act as your eyes and ears, measuring and recording crucial environmental data. Temperature and Humidity are one of the most measured entities in the environment. Introducing our Environmental Sensor Family, a comprehensive solution that…
  • Motion sensors

    Motion sensors

    nwieland
    Motion sensors play a crucial role in modern technology, enabling a wide range of applications across various industries. These sensors are designed to measure and detect changes in motion, providing essential data for navigation, orientation, and control systems. The primary types of motion sensors include accelerometers and gyroscopes, which collectively contribute to a device's ability to understand and respond to…
  • ANP117 | Impact of output capacitor on feedback loop stability of a power supply

    ANP117 | Impact of output capacitor on feedback loop stability of a power supply

    nwieland
    A switching power supply requires one or more capacitors across the output voltage rail. Their main purpose is to provide a low-impedance path to filter out the AC current ripple at the converter switching frequency and any high-frequency noise, resulting in a ‘clean’ DC voltage to supply the load. In addition to this, they also act as an energy reservoir. In the case of a sudden change in the load current demand, the…
  • Discover the world of sensors

    Discover the world of sensors

    nwieland
    What is a sensor component? A system that measures a physical dimension and transfers into an electrical signal. Sensors are basically analog with infinite resolution, but data to and from the cloud is transferred digital. Analog sensor values must therefore be digitized. Conversion can be done in external AD converters when using an analog sensor cell or the conversion can be all done internally, within the sensor system…
  • ANP129 | Inductive SMT Components in Comparison – the Wire Makes the Difference

    ANP129 | Inductive SMT Components in Comparison – the Wire Makes the Difference

    nwieland
    This application note concisely shows the differences between three different inductive SMT components – the ceramic inductor (air coil), the SMT ferrite and the wire-wound ferrite inductor. Electrical parameters are compared and their differences explained. Applications to illustrate how the components can be used to the best performance and how physically induced parasitic parameters can be used advantageously in circuit…