Automotive

Carolyn Mathas
Editor
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.

Rohde & Schwarz enters handheld oscilloscope market

Takes on Keysight, Fluke, B&K, and a host of others in field measurements. Read More...

2016 Predictions for mixed-signal IC design

Complex mixed-signal SoC verification requires a system-level view—encompassing chip, package, and board—to ensure high-quality chips for application areas like automotive and IoT. Read More...

Sensor-rich ADAS speeds up

Advanced driver assistance systems and autonomous vehicles continue forward as sensors begin to move into the role of not just capturing data effectively, but also analyzing it and communicating the results to the driver and the vehicle. Read More...

Oscilloscopes detect ECU disturbances from EMI

Engineers at Hitachi use oscilloscopes to monitor the health of engine-control units during immunity tests, but such tests require isolated signals. Read More...

Wide input range 1A LED driver powers high brightness LEDs with automotive and 12VAC supplies

The LT3474 LED driver allows today’s ultrabright LEDs to far exceed the performance of incandescent bulbs in both efficiency and lifetime. Read More...

Rotary position sensing for electric vehicles, part II

In part II of this series on electric vehicle rotary position sensing we discuss the robustness of position sensing. Read More...

General Motors chooses ultracapacitors for start-stop

Ultracapacitors have found their way into the automotive ecosystem in areas such as regenerative braking, start-stop systems, active suspension systems, voltage stabilization, electric turbochargers, and more. Read More...

PSI5 silicon validation setup is easily enhanced

Available test equipment for PSI5 isn’t enough to fully validate a system, so here’s what else you need. Read More...

How prevalent are automotive sensor failures?

As manufacturers continue to install electronics that enable handing off the driving of the vehicle to the vehicle itself, there should be greater concern when sensors fail. Read More...

Rotary position sensing for electric vehicles, part I

Lowering the overall automotive carbon footprint and enabling vehicles to harness lost energy drives the automotive industry today. Rotary sensors are a major component in the electric vehicle, one of the technologies at the heart of this movement. Read More...

Path to defect-free SMT process for automotive PoP

Optimizing speed and time are the prerequisites to a robust SMT process of memory to bottom (logic) package attach for PoP technology. Read More...

Opinion: Volkswagen’s failure

It went through the press like a thunderstorm: Volkswagen had software in its diesel engine controllers that detected when the car was under test. In such situations, it reduced the harmful exhaust to the legal limit. Read More...

LTE modems come in small LGA packages

Swiss manufacturer u-blox offers LTE low-date-rate cellular modules for IoT and M2M designs in the industrial and automotive markets. Read More...

LVDS display bridges and automated measurements, part 2

Part 2 describes the automation flow for characterizing LVDS devices used in automotive SoCs. Read More...

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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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NFC transponder teams with automotive SoCs

A dynamic NFC transponder from Texas Instruments, the RF430CL330H-Q1, is AEC-Q100-qualified for use in automotive infotainment systems. Read More...

Ethernet chip meets automotive EMC requirements

The KSZ8061 10Base-T/100Base-TX Ethernet PHY transceiver from Microchip employs programmable EMI filtering to reduce line emissions. Read More...

Automotive-grade inductors take the heat

Offering inductance values from 0.22 µH to 33 µH, Vishay Dale’s IHLP inductors withstand continuous operating temperatures of up to 180°C. Read More...

In-mold electronic inks enable control integration

DuPont Microcircuit Materials is launching a suite of in-mold electronic inks designed to help streamline electronic devices by reducing the need for rigid circuit boards. Read More...

LTE modems come in small LGA packages

Swiss manufacturer u-blox offers LTE low-date-rate cellular modules for IoT and M2M designs in the industrial and automotive markets. Read More...

Quad deserializer eases automotive camera design

A single MAX9286 GMSL deserializer from Maxim receives and automatically synchronizes video streams from up to four cameras. Read More...

LDO regulator is qualified for automotive designs

Housed in a tiny 2×2-mm, 6-pin DFN package, the MAQ5300 voltage regulator from Micrel boasts a dropout of only 100 mV at 300 mA. Read More...

Automotive 42V, Quad Output Synchronous Step-Down Regulator, IQ of 30uA

Modern automotive power management ICs continue to require higher performance. As the power requirements for these applications continues to grow, the available space for power conversion solutions continually shrinks requiring even higher power densities. Furthermore, the required electrical performance criteria of these switching regulators becomes more demanding. Offering four independent outputs in the same solution footprint as many single output devices becomes desirable in many applications. Read More...

Surface-mount LED chip array offers lower solution costs, higher light quality

Aimed at reducing assembly and optic design costs of retrofit bulbs and lighting equipment, Osram Opto Semiconductors' Duris S 10 Chip Array SMD (CAS) boasts high efficiency, high light output and uniform color appearance. The LED’s compact 7.7mm light-emitting surface enables compact optics with beam angles as narrow as 120° and helps simplify the integration of lenses, reflectors and other standard accessories. Read More...

High-performance LEDs aim at halogen spotlight applications with 90 CRI, halide-like R9 values, 140Lm/W

One of the reasons I attended Lightfair last month was to get a firsthand look at Cree's new TrueWhite® LEDs which the company claims are able to rival the light quality of a traditional ceramic metal halide (CMH) bulb. The short answer was that I was tickled at the "near-halogen experience" TrueWhite appears to deliver. There's also a slightly longer answer which I'll get to after a quick review of what Cree says about its devices. Read More...

Oscilloscopes get CAN FD bus trigger

New features in Keysight's midrange oscilloscopes let you decode and analyze the signals in the latest version of the popular automotive data bus. Read More...

Video decoder simplifies backup camera designs

Eliminating the need for an external op amp, the TW9992 analog video decoder from Intersil accepts both single-ended and differential CVBS inputs from a vehicle’s backup safety camera, reducing system cost and saving board space. Read More...

Samsung's Mid-Power flip-chip LEDs foreshadow a larger battle ahead

Samsung's recently announced family of flip-chip mid-power LEDs and aggressive roadmap for its chip scale packaging technology are both signs that the Korean electronics giant intends to defend its market share against growing competition. Read More...

Buck controller allows 48V to 1V direct step-down

By eliminating the intermediate conversion step, this controller helps simplify distributed power system design. Read More...

Signal analyzer measures 64 IEPE channels

Connect IEPE accelerometers directly to the Data Translation VIbox, then analyze sound and vibration signals. Read More...

LED light guides deliver affordable OLED-like performance

Sleek, stylish and seductively luminous, OLED panels' silky, eerily-even glow has made them a favorite for fashion-forward lighting designers, even though they cost more, were shorter lived, and more easily damaged. This may change however, as Global Lighting Technologies' (GLT) introduces a growing number of products based on its edge-lit LED-based light guide technology. Read More...

MOST150 controller affords smart-antenna module connectivity

Compliant with the recent release of the MOST150 coaxial physical-layer specification, Microchip’s OS81118AF INIC (intelligent network interface controller) enables smart-antenna module connection to in-vehicle MOST150 ADAS (advanced driver assistance system) and infotainment networks. Read More...

High-speed RAM leverages HyperBus interface

High-speed, low pin-count RAM suits pin-limited microcontrollers Read More...

Vision MPU SoC surpasses existing driver assist on the road to full autonomy

Freescale upped the ante, launching a groundbreaking S32V234 vision system-on-chip (SoC) that moves the automotive industry from addressing convenience closer to taking over the wheel. Read More...

Silent Switcher with high efficiency and low EMI/EMC

The latest automotive electronics boom has added many new features to engine control, entertainment, safety systems and more. In this very harsh environment that an automobile will experience, there are stringent features that need to be a part of any electronics devices is the system. Read More...

Two-string HB automotive LED driver provides 10000:1 dimming ratio

For use in automotive display backlights, automotive lighting applications and LCD backlights, Maxim has posted detail of the MAX16838B which it says is the only-available 2-String HB LED driver providing 10000:1 dimming ratio. Read More...

Triple LED controllers for rear lights

The IC family E522.80/81/82/83 from Elmos AG is an LED controller device, designed for applications like automotive rear lights. The devices offer three channels each, with a maximum current of 140 mA. Read More...

Tact switch combines resilience, excellent operating feel

In response to the strict robustness and resilience requirements in the automotive industry, component manufacturer, ALPS Electric has developed and commenced mass production of the SKTH Series TACT Switch. Read More...

EDN Hot 100 products of 2014

Of the many thousands of products announced during the past year, these are 100 that especially caught the attention of our editors and our readers. Read More...

Auto-grade photovoltaic MOSFET driver debuts at Electronica

Avago launches a photovoltaic MOSFET driver qualified to AEC-Q100 Grade 1 test guidelines, making it the first such device usable in "under-the-hood" high-temperature automotive applications. 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...

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Avoid these common MEMS failure mechanisms

MEMS adoption is on the rise, and knowing how they might fail is the first step in ensuring their reliability in a design. Read More...

Wireless charging for electric vehicles

Wireless charging has been around for years in low-power consumer applications, but finally the future is looking brighter for its use with electric vehicles. Read More...

Control individual LEDs in matrix headlights with integrated 8-Switch flicker-free driver

LEDs combine design flexibility with practical, robust circuitry, enabling automotive designers to produce striking headlight designs matched by exceptionally long life and performance. Automobile designers are increasingly incorporating LEDs in lighting because they can be arranged in distinctive eye-catching designs—helping distinguish new models from old, or high end from economy. Read More...

Oscilloscopes detect ECU disturbances from EMI

Engineers at Hitachi use oscilloscopes to monitor the health of engine-control units during immunity tests, but such tests require isolated signals. Read More...

Wide input range 1A LED driver powers high brightness LEDs with automotive and 12VAC supplies

The LT3474 LED driver allows today’s ultrabright LEDs to far exceed the performance of incandescent bulbs in both efficiency and lifetime. Read More...

Rotary position sensing for electric vehicles, part II

In part II of this series on electric vehicle rotary position sensing we discuss the robustness of position sensing. Read More...

Not your father's electric vehicle – The technology that powers Formula E

Electric vehicles are widely forecast to be the future of transportation – and now they have their own racing series. Formula E is a groundbreaking FIA single-seater championship and the world's first fully-electric racing series. Read More...

General Motors chooses ultracapacitors for start-stop

Ultracapacitors have found their way into the automotive ecosystem in areas such as regenerative braking, start-stop systems, active suspension systems, voltage stabilization, electric turbochargers, and more. Read More...

PSI5 silicon validation setup is easily enhanced

Available test equipment for PSI5 isn’t enough to fully validate a system, so here’s what else you need. Read More...

Rotary position sensing for electric vehicles, part I

Lowering the overall automotive carbon footprint and enabling vehicles to harness lost energy drives the automotive industry today. Rotary sensors are a major component in the electric vehicle, one of the technologies at the heart of this movement. Read More...

Post-silicon randomized functional testing finds corner-case problems

Directed functional verification tests are necessary with any new IC design, but adding randomized testing will likely uncover a few extra bugs. Read More...

Path to defect-free SMT process for automotive PoP

Optimizing speed and time are the prerequisites to a robust SMT process of memory to bottom (logic) package attach for PoP technology. Read More...

μModule LED driver integrates all circuitry in a SMT package

Despite the clear advantages LEDs offer, their requirement for regulated voltage and current make LED driver circuits more complex than the venerable light bulb, but some new devices are closing the gap. Read More...

>> SEE ALL

Rohde & Schwarz enters handheld oscilloscope market

Takes on Keysight, Fluke, B&K, and a host of others in field measurements. Read More...

2016 Predictions for mixed-signal IC design

Complex mixed-signal SoC verification requires a system-level view—encompassing chip, package, and board—to ensure high-quality chips for application areas like automotive and IoT. Read More...

Your DesignCon 2016 dance card isn’t complete without…

The annual design enginEEring con is equal parts reunion and party and there’s a conference, too. Read More...

Sensor-rich ADAS speeds up

Advanced driver assistance systems and autonomous vehicles continue forward as sensors begin to move into the role of not just capturing data effectively, but also analyzing it and communicating the results to the driver and the vehicle. Read More...

Innovation Celebrated at ARM TechCon

To celebrate innovation in the ARM community, we held a competition. Read More...

The real danger of artificial intelligence

Don't worry about AI becoming too smart, worry about it being too dumb. Read More...

How prevalent are automotive sensor failures?

As manufacturers continue to install electronics that enable handing off the driving of the vehicle to the vehicle itself, there should be greater concern when sensors fail. Read More...

Opinion: Volkswagen’s failure

It went through the press like a thunderstorm: Volkswagen had software in its diesel engine controllers that detected when the car was under test. In such situations, it reduced the harmful exhaust to the legal limit. Read More...

Attaining functional safety: Managing random failures

Designing in functional safety means finding a way to handle random failures in the field. Read More...

Attaining functional safety: Standards, certification, and the development process

This first in a series on functional safety in design provides an overview of functional safety standards, key certification requirements, and how to ease the effort of certification. Read More...

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