Automotive

EDN Staff

Cars have become computers on wheels, with more and more automotive design being driven by electronics. Stay up to speed on automotive design with this site. Topics discussed include hybrid and electric vehicles (EVs), infotainment, safety systems, solid-state lighting, powertrain, x-by wire, Human Machine Interface (HMI), telematics/in-vehicle navigation, and more.

What is the Body Control Module in modern automobiles?

The automotive Central Body Control Module (BCM) is a processor-based Power Distribution Center that supervises and controls functions related to the car body such as lights, windows, security, door locks and access control, and various comfort controls. Read More...

A big part of Intel’s 5G strategy: Altera FPGAs and the mobile trial platform

Major network infrastructure vendors are interested in Intel’s third generation 5G mobile trial platform, which will be operational in the second half of this year. It is based upon Intel’s 14 nm Stratix 10 FPGA. Read More...

LabVIEW NXG: Version 2.0 is coming

The next generation of LabVIEW is out, but it's scaled down, at least for now. Most current users will wait for version 2.0 or later to use it for new or existing applications. Read More...

Enhancing drivers' eyes, senses, and reflexes with creative electronics

Safety while driving is paramount when we think about all the different proposed electronics that will be going into modern automobiles. Read More...

Multiprocessing gets an ARM up

ARM’s new cluster architecture will create optimum heterogeneous processor groupings on a chip. Read More...

The Littelfuse Silicon Valley Technology Center takes research and development to the next level

I had the pleasure of visiting with Clifton Tsang, Ph.D, Senior Materials Engineer at this new technology center and I saw how Littelfuse research and development capabilities will be taken to the next level. Read More...

Calibrate voltage drops and interrupts before testing

Follow these techniques for calibrating a signal generator used to create drops and dips in power-supply voltage for testing automotive (or any other) electronics. Doing so automates measurements and reduces errors. Read More...

Optimizing compilers for ADAS applications

Compilers are essential for cost-efficient ADAS design, but need to be better adapted to the code structures and specific safety requirements typical of ADAS. Read More...

Innovative 3D sensing for automotive control functions

Conventional sensor technologies present engineers with challenges in sensing the position and movement of automotive control functions. New 3D magnetic sensing technology is helping engineers to address these challenges. Read More...

A rundown on daytime running lights

Daytime running lights are consistently gaining ground in both the manufacturer-installed and DIY categories. Read More...

Torture-testing your new SoC’s security quotient

Your new chip might be secure in theory, but then there’s practice. Read More...

What are magneto-inductive MEMS?

In one example, magneto-inductive sensors can be used to locate available parking spaces and guide you right to them. Read More...

Dangers lurking below WCSP backside coatings

A look at WCSP backside coatings, and why you should probably eliminate them. Read More...

Maximize infotainment system design reuse with I2C GPIO expanders

I2C GPIO expanders provide a way to reuse existing design and add new feature sets to form an integrated automotive cockpit that combines infotainment and cluster systems. Read More...

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LTC Design Note: 60V Buck-Boost LED driver has up to 98% efficiency, PWM dimming, spread spectrum

LED driver design is highly efficient, flicker-free, minimizes EMI, and plays well in the automotive environment. Read More...

Antilog converter linearizes carbon dioxide sensor

Simplify gas sensor interface with some analog preprocessing. Read More...

LTC Design Note: 65V 500mA step-down converter fits automotive and industrial applications

This switcher is happy to drop a 60V input all the way down to 0.8V. Read More...

Inductively sense aircraft engine valve position

Aircraft engine designers are conservative by nature, but here's a way to improve performance anyway. Read More...

Design Notes: 42V 2.5A Synchronous Step-Down Regulator with 2.5μA Quiescent Current

This efficient solution allows for small inductors and high switching frequency. Read More...

Precision capacitance meter

There's an art to capacitance measurement. What do you think of this rendition? Read More...

Sense automobile high-side current with discrete components

Use this circuit to convert a current into a voltage for measurement. Read More...

Current monitor uses Hall sensor

Use a Hall-effect sensor to measure dc current in the range of 0 to 40A. Read More...

Simple circuit helps to protect a vehicle-reverse camera

Add a delay to prevent short power pulses as you shift through reverse. Read More...

Solar-powered sensor controls traffic

A traffic-sensor post measures vehicle location and speed at an intersection, providing an accurate, effective, inexpensive approach to monitoring traffic flow. Read More...

Power USB devices from a vehicle

Supply power to two USB devices from the cigarette lighter or other power source. Read More...

Automotive switching regulators get input-transient-voltage protection

A simple scheme protects switching regulators against 50V voltage transients in automotive applications. Read More...

Automotive link uses single wire

In the automotive industry, in which the goal is to produce cars with simpler, lighter wiring looms, any interface that uses just one wire instead of two offers a distinct advantage. The circuit in Figure 1 implements a bidirectional link using a single wire, with the car's chassis or ground conductor providing a negative return path. Read More...

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Silence is golden: 65V, 8A synchronous step-down switching regulator

Silence is golden, especially with switching regulators in automobiles that are very efficient, thus extending the battery life in an EV, but their switching noise can interfere with AM Radio reception and safety critical systems with radiated EMI. Read More...

Voltage detector ensures stable operation

Useful for automotive and industrial applications, the R3152 window voltage detector from Ricoh is less sensitive to supply voltage noise. Read More...

Current controller offers bidirectional operation

AEC-Q100-qualified, the LM5170-Q1 buck/boost controller from Texas Instruments transfers power between dual automotive battery systems. Read More...

Scope option tackles 1000Base-T1

Option RTO-K87 for the Rohde & Schwarz RTO2000 oscilloscope enables compliance testing of automotive 1000Base-T1 Ethernet interfaces. Read More...

Step-down converter minimizes EMI

Accepting an input of 3.6 V to 30 V, the R1275 DC/DC converter from Ricoh uses a spread spectrum clock generator to reduce EMI noise. Read More...

What are magneto-inductive MEMS?

In one example, magneto-inductive sensors can be used to locate available parking spaces and guide you right to them. Read More...

PMIC meets automotive demands

A multiphase 12-A buck converter, the DA9210-A from Dialog Semiconductor targets next-generation infotainment systems in connected vehicles. Read More...

eCall battery charger cuts leakage current

Intersil’s ISL78693 3.6-V single-cell battery charger increases the life of LiFePO4 backup batteries used in automotive eCall systems. Read More...

Keysight introduces three PXI chassis

The three chassis give you options when developing automated test applications. Read More...

Multichip LEDs suit entry-level ADB headlights

Osram’s Oslon Black Flat S series of surface-mount LEDs comprises configurations containing up to five individually controlled chips. Read More...

Smart charger meets automotive requirements

Outfitted with a microcontroller and firmware, the ENA200 battery charger from Powerbox guarantees optimum charging and longer battery life. Read More...

Platform eases in-vehicle eCall testing

Teamed with a wireless test set and RF generator, Keysight's E6950A eCall conformance software allows end-to-end testing of eCall modules. Read More...

Automotive MOSFETs slash on-resistance

Two 40-V AEC-Q101 qualified MOSFETs, part of STMicroelectronics' STripFET F7 series, furnish current ratings of 120 A. Read More...

Gamma buffer optimizes auto LCDs

Intersil’s ISL76534 14-channel programmable gamma buffer ensures consistent brightness and color matching in automotive TFT LCDs. Read More...

Automotive ICs help shrink ECU size

AEC-Q100 Grade 0 analog ICs, the LM2904WHYST dual op amp and LM2903WHYST dual comparator from STMicroelectronics, come in MiniSO8 packages. Read More...

Automotive controller increases available power

The LTC3871 from Linear Technology is a bidirectional switching regulator controller that operates in either buck or boost mode on demand. Read More...

Step-up converter drives LED strings

A monolithic synchronous step-up DC/DC converter, the LT3922 from Linear Technology, packs 40-V, 2-A power switches and a PWM generator. Read More...

CAN transceiver wards off ground potentials

A CAN µModule from Linear Technology, the LTM2889 separates grounds by isolating the CAN transceiver using internal inductive isolation. Read More...

USB oscilloscopes add waveform generators

TiePie Engineering has added a waveform generator to its line of USB oscilloscopes, which the company claims is a unique design. Read More...

LED headlight connector mates securely

The single-row, wire-to-board MiniBridge Koshiri connector from ERNI improves mating integrity in intelligent LED headlight systems. Read More...

AEC-Q100 buck regulators perform POL conversions

Three synchronous step-down regulators, the ISL78233, ISL78234, and ISL78235 from Intersil deliver 3 A, 4 A, and 5 A, respectively. Read More...

Welcome back to The EMC Blog, now with Magic!

The EMC Blog is back as Dr. Atruro Mediano begins to take engineers down the path to minimizing emissions and immunity. Read More...

36-V op amps reduce supply-current needs

The dual TSB572 and single TSB611 BiCMOS op amps from STMicroelectronics have a wide supply range and tolerate ESD up to 4 kV HBM. Read More...

Instruments vary insulation test voltage

Insulation testers in Megger’s MIT400/2 series offer a user-variable range that allows any test voltage from 10 V to 1000 V in 1-V steps. Read More...

Buck regulator powers infotainment systems

AEC-Q100-qualified, the A8591 2-A buck regulator from Allegro MicroSystems provides an output voltage that is accurate to within ±1%. Read More...

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Teardown: Heads-up thermal imaging camera

Wow, thermal imaging in the car. Read More...

Teardown: Airbag controller

Check out this airbag controller teardown, courtesy of Dave Jones from the EEVblog. Read More...

Teardown: OBD-II Bluetooth adapter

Peer inside an unbelievably low-cost OBD-II to Bluetooth "dongle." Read More...

Teardown: High-voltage Li-ion battery stack management - the drive for safe power

At the heart of the Chevrolet Volt, a sophisticated Li-ion battery stack management system ensures the safety and reliability of a multi-cell Li-ion battery stack capable of delivering power on demand to the Chevy Volt drive system. Read More...

Teardown reveals Chevy Volt's electronic secrets

Beyond battery chemistry and electric propulsion and control, the Chevy Volt enhanced-range electric vehicle builds in flexibility, ruggedness, and diagnostics—with attention to quality construction. Read More...

Bulldog Security RS82B remote-vehicle-starter system

Microprocessor-controlled relays let you start your car 100 yards away. Read More...

The Tesla Roadster: Sporty and electric

Prying Eyes: A modern electric sports car presents a unique design challenge. Read More...

The 24V, 300W, BLDC Kollmorgen motor integrated controller

A motor mixes mechanical and electrical beauty with questionable thermal design. Read More...

Under the hood of hybrid vehicles

Energy- and emission-efficient automobiles are increasingly relying on both combustion engines and electric motors for power. Read More...

Hybrids mark the end of the stinky city bus

Prying Eyes looks inside a hybrid gas-electric bus powered by 288 ultracapacitors. Read More...

>> SEE ALL

What is the Body Control Module in modern automobiles?

The automotive Central Body Control Module (BCM) is a processor-based Power Distribution Center that supervises and controls functions related to the car body such as lights, windows, security, door locks and access control, and various comfort controls. Read More...

Meeting the power demands of battery supplied automotive electronics

Garden variety DC/DC regulators aren’t keeping pace with the evolution of automotive electronics and accessories. Read More...

Enhancing drivers' eyes, senses, and reflexes with creative electronics

Safety while driving is paramount when we think about all the different proposed electronics that will be going into modern automobiles. Read More...

The Littelfuse Silicon Valley Technology Center takes research and development to the next level

I had the pleasure of visiting with Clifton Tsang, Ph.D, Senior Materials Engineer at this new technology center and I saw how Littelfuse research and development capabilities will be taken to the next level. Read More...

Calibrate voltage drops and interrupts before testing

Follow these techniques for calibrating a signal generator used to create drops and dips in power-supply voltage for testing automotive (or any other) electronics. Doing so automates measurements and reduces errors. Read More...

Optimizing compilers for ADAS applications

Compilers are essential for cost-efficient ADAS design, but need to be better adapted to the code structures and specific safety requirements typical of ADAS. Read More...

Innovative 3D sensing for automotive control functions

Conventional sensor technologies present engineers with challenges in sensing the position and movement of automotive control functions. New 3D magnetic sensing technology is helping engineers to address these challenges. Read More...

Torture-testing your new SoC’s security quotient

Your new chip might be secure in theory, but then there’s practice. Read More...

Maximize infotainment system design reuse with I2C GPIO expanders

I2C GPIO expanders provide a way to reuse existing design and add new feature sets to form an integrated automotive cockpit that combines infotainment and cluster systems. Read More...

Detect and analyze EFT events

Electrical fast transients can disturb electronic circuits. Using an oscilloscope, you can find these pulses, display them, and calculate their characteristics as part of troubleshooting. Read More...

Autonomous cars on various terrains

When the world is treading on the driverless car path, it is important to understand whether the driverless vehicle is really intended for every terrain. Read More...

Wireless battery management systems highlight drive for higher reliability

Wireless battery management systems promise to improve safety and reliability of the full battery system. Read More...

Moving to improve automotive safety with MEMS scanning mirror technology

During the MEMS & Sensors Executive Congress, Jari Honkanen from MicroVision showed off amazing MEMS moving mirror technology. Read More...

>> SEE ALL

LabVIEW NXG: Version 2.0 is coming

The next generation of LabVIEW is out, but it's scaled down, at least for now. Most current users will wait for version 2.0 or later to use it for new or existing applications. Read More...

Power Tips #75: USB Power Delivery for automotive systems

With USB Power Delivery, devices can negotiate for more power, enabling features that were previously not possible. Read More...

Multiprocessing gets an ARM up

ARM’s new cluster architecture will create optimum heterogeneous processor groupings on a chip. Read More...

A rundown on daytime running lights

Daytime running lights are consistently gaining ground in both the manufacturer-installed and DIY categories. Read More...

The mythical software engineer

Is software engineering really a thing? Read More...

Connected cars: IoT’s value proposition

One area of IoT where the value proposition is relatively obvious is in connected cars, but how will the data exchange work? Read More...

Thermocouples: Basic principles and design essentials

It takes carefully designed and implemented circuitry to design a high-accuracy thermocouple interface. The first step is to understand the underlying physics principles of this widely used temperature sensor. Read More...

Tesla's Autopilot: setting expectations ... or not

Fully autonomous driving may be the future, but it's definitely not the present, and Tesla’s branding is causing dangerous situations. Read More...

The homes of EDN

Take a tour of EDN's office locations through the years, including the home of the print collection. Read More...

Despite Tesla accidents, autonomous vehicles are closer than they appear

While accidents in Tesla vehicles cast clouds on autonomous driving, a quick look at our own driving habits and needs shows that autonomous vehicles are closer than they appear. Read More...

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