Driver assistance systems require a control unit to switch on vital assistance or to ensure availability. Vishay's intelligent battery shunt resistor and Infineon's automotive PSoC 4 HVPA monitor residual energy and distribute loads appropriately to enhance reiliability and availability.
Battery monitoring plays an essential role in ensuring a reliable power supply for high-availability control units in automotive driver assistance systems, as does sensor technology. The combination of the two components is critical in designing an intelligent battery sensor.
Parameters such as battery current and voltage are measured to monitor the battery in the vehicle. The electronics use these parameters to calculate the residual energy stored in the battery, among other variables. Based on this, a control unit can decide which loads may be switched on or must be switched off to ensure that vital assistance functions remain available.
To measure the current, an important component in any battery sensor is the sensing element, such as shunt resistors, which are the focus of this article.
The advantage of shunt resistors is that they provide a simple linear relationship between the measurand and the output signal. According to Ohm's law, the voltage drop across the shunt is proportional to its constant resistance and the current flowing through it. This makes shunts suitable for DC and AC currents as well as for both current directions. The sensitivity to interference with respect to temperature is known from the data sheet and can be calculated if the actual temperature value is known.
Diese Geschichte stammt aus der October 2024-Ausgabe von Circuit Cellar.
Starten Sie Ihre 7-tägige kostenlose Testversion von Magzter GOLD, um auf Tausende kuratierte Premium-Storys sowie über 8.000 Zeitschriften und Zeitungen zuzugreifen.
Bereits Abonnent ? Anmelden
Diese Geschichte stammt aus der October 2024-Ausgabe von Circuit Cellar.
Starten Sie Ihre 7-tägige kostenlose Testversion von Magzter GOLD, um auf Tausende kuratierte Premium-Storys sowie über 8.000 Zeitschriften und Zeitungen zuzugreifen.
Bereits Abonnent? Anmelden
Morse Micro Launches Highly Anticipated Second-Generation MM8108 SoC
Enabling improved spectrum efficiency to minimize interference in high-density environments, the MM8108 delivers class-leading data rates of up to 43.33Mbps using world-first sub-GHz 256-QAM modulation at an 8MHz bandwidth, making it ideal for a range of applications in agricultural, mining, industrial, home, and city environments.
NXP MCX MCUs and IDEs Cut Development Time
Development boards, such as NXP's FRDM platform for MCX A series MCUs, are revolutionizing embedded systems by integrating components for prototyping and innovation in the IoT landscape. These technologies streamline development, enhance flexibility, and reduce costs, enabling greater focus on software development while addressing complex challenges.
Asynchronous Programming in Flutter - Shallow Dive into Google's Mobile App Framework
This month, Bob continues his look at mobile app programming from the perspective of an embedded system designer. He begins a shallow dive into Flutter, the mobile app framework from Google, by describing his transition from React Native to asynchronous programming in Flutter.
Basic Pulse Circuits - Part 3: Metastability, Setting, or Resetting
In digital design, signal processing is crucial when dealing with asynchronous signals from sensors and level translators. In Part 1 of a three-part series, Wolfgang described how pulse circuits help digital circuits deal with pulse trains. In Part 2, he wrote about flip-flops, timing parameters and synchronization. In Part 3, he looks at how to mitigate metastability and ensure internal clock synchronization.
Infineon and Flex Showcase Zone Controller Design Platform for Software-Defined Vehicles
Infineon Technologies AG and Flex, a diversified global manufacturer and new preferred automotive design partner for Infineon, are showcasing the new Flex Modular Zone Controller design platform for software-defined vehicles at CES 2025.
Switching Regulator Efficiency - Minimize Power Consumption in Battery-Operated Systems
A switching voltage regulator converts input DC voltage into a desired output DC voltage. This month, Stuart delves into the factors that influence the efficiency of switching regulators, and why they are crucial for embedded applications. From understanding the role of inductors and transistors to exploring practical examples, this article offers valuable knowledge for anyone interested in optimizing power supply designs.
Learn Lisp Programming Using MCUs - Part 2: Extending µLisp with Custom Functions
In the second installment of this series, Raul delves into the world of µLisp and shows how to extend capabilities by adding custom functions such as \"pulsein\" and \"servo-create\", enabling developers to interface with ultrasonic sensors and control servomotors. In Part 1, Raul presented µLisp concepts and syntax, and extensions specific to MCUs.
Introducing Bluetooth LE Audio - Part 1: Sound of a Revolution
Following the Bluetooth Core 5.2 release, Bluetooth Low Energy Audio introduces capabilities that will revolutionize audio applications through isochronous channels and new audio middleware. Nick writes about a framework supporting bidirectional audio and shared listening in Part 1 of a two-part article.
CMake the Most of Software Development - Modern Build Systems Support Scalability
Discover how modernizing your build system with CMake can revolutionize embedded software development, offering unparalleled flexibility and efficiency. Dive into this article to explore the transformative benefits of CMake's cross-platform capabilities and how it integrates seamlessly with contemporary development practices.
Engineering Healthcare - Cutting-Edge Technologies to Enhance Patient Care
Explore the groundbreaking advancements in Pulsed Field Ablation technology, where engineering meets cardiac care to revolutionize atrial fibrillation treatment. This article delves into the intricate design and functionality of cutting-edge devices that enhance precision and safety in medical procedures, showcasing the vital role electronics play in shaping the future of healthcare.
