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.

Are “beam array” headlights in automotive’s future?

Everyone complains about headlights, but now, someone’s doing something about it. Can smart beam arrays better illuminate the road while causing less glare for other drivers? Read More...

Module connects sensors to 12-bit oscilloscopes

Teledyne LeCroy's SAM40 adds sensor inputs to the company's HDO line of 12-bit oscilloscopes forming a complete data-acquisition system. Read More...

Infographic exposes autonomous car history

Infographics and autonomous cars, combined at last. Read More...

Use copper to temperature-compensate high current measurements

Measuring high currents via cable voltage drop is an economical solution, but how can the large copper tempco be compensated? Read More...

Moving from 24 GHz to 77 GHz radar

While 24 GHz has the advantage of being in the unlicensed ISM band with worldwide regulatory support, it is hampered by the availability of only 200 MHz of bandwidth. The time has come for 77 GHz radar. Read More...

The price tag of automotive electronics: What’s really at play?

It seems the amount of electronics in an automobile will only continue to rise. Why, how, and when? Read More...

Gen Y suspect of autonomous vehicles. Is mistrust based in reality?

Even if automakers offer up self-driving cars, will consumers want them? And will acceptance vary depending on your generation? Read More...

Automotive SMT fuses don't explode

AEM's new fuses are optimized for EVs, but useful anywhere extra safety is desired. Read More...

CAN FD chip eases design updates

New IC from Microchip lets you add CAN FD (flexible data rate) to new or existing designs. Read More...

Self-driving cars are stuck at idle, while driver assistance accelerates

Self-driving may be overhyped right now, but some remarkable ADAS features are already on the road, with more about to ship. Read More...

Tesla backlash shows misunderstanding of reality

Software-enabled hardware features, over-the-air updates, and common-platform design are becoming the rule, not the exception. Good or bad? Discuss. Read More...

Formula E: The electric vehicle moves to the racing circuit

In Formula E racing, there is no engine “roar” or odor of high octane fuel in the air as powerful electric engines fire up on the track. Read More...

HV Corotron monitors diesel emissions

Concerns over diesel emissions are nothing new. Read how some old-school tech handled measurements with the help of many, many volts. Read More...

Optimizing flash memory selection for automotive & other uses

A look at NOR Flash options, focusing on speed. Read More...

Self-driving cars will save money and lives as they destroy jobs

Self-driving cars will save us money, time, and prevent death and injuries, but at what cost? Read More...

>> SEE ALL

Use copper to temperature-compensate high current measurements

Measuring high currents via cable voltage drop is an economical solution, but how can the large copper tempco be compensated? Read More...

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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Software analyzes V2X messages

Anritsu offers V2X 802.11p-compliant MX727000A message evaluation software for vehicle-to-vehicle and vehicle-to-roadside communications. Read More...

Module connects sensors to 12-bit oscilloscopes

Teledyne LeCroy's SAM40 adds sensor inputs to the company's HDO line of 12-bit oscilloscopes forming a complete data-acquisition system. Read More...

BLE SoC senses tire pressure

The SmartBond DA14585 BLE (Bluetooth Low Energy) SoC from Dialog Semiconductor monitors the air pressure and temperature of automotive tires. Read More...

Automotive SMT fuses don't explode

AEM's new fuses are optimized for EVs, but useful anywhere extra safety is desired. Read More...

CAN FD chip eases design updates

New IC from Microchip lets you add CAN FD (flexible data rate) to new or existing designs. Read More...

Magnetic sensors are feature-rich

Comprising three families, the Si720xx Hall-effect sensor portfolio from Silicon Labs combines very low power and high sensitivity. Read More...

Automotive adhesive secures high-rel electronics

UA-3307-B reworkable edgebond adhesive from Zymet enhances board-level reliability in automotive and other harsh-environment applications. Read More...

High-voltage relays target electric vehicles

Fujitsu’s FTR-E1 series of DC switching relays offers 13% higher voltage switching at 77% less power consumption than similar relays. Read More...

Measure 16 temperatures, controlled online

The WebDAQ 316 from Measurement Computing lets you measure 16 thermocouple channels and includes a built-in web server. Read More...

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...

>> SEE ALL

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

Moving from 24 GHz to 77 GHz radar

While 24 GHz has the advantage of being in the unlicensed ISM band with worldwide regulatory support, it is hampered by the availability of only 200 MHz of bandwidth. The time has come for 77 GHz radar. Read More...

Formula E: The electric vehicle moves to the racing circuit

In Formula E racing, there is no engine “roar” or odor of high octane fuel in the air as powerful electric engines fire up on the track. Read More...

Optimizing flash memory selection for automotive & other uses

A look at NOR Flash options, focusing on speed. Read More...

Microgrid musings of an EE

A microgrid is a group of interconnected loads and distributed energy resources within clearly defined electrical boundaries that act as a single controllable entity with respect to the grid. Read More...

When can a sensor be used in an automotive system?

Here is a designer’s guide to deciphering the term ‘automotive qualified.’ Read More...

What is the body control module in modern automobiles?

The automotive central body control module 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...

>> SEE ALL

Are “beam array” headlights in automotive’s future?

Everyone complains about headlights, but now, someone’s doing something about it. Can smart beam arrays better illuminate the road while causing less glare for other drivers? Read More...

Infographic exposes autonomous car history

Infographics and autonomous cars, combined at last. Read More...

The price tag of automotive electronics: What’s really at play?

It seems the amount of electronics in an automobile will only continue to rise. Why, how, and when? Read More...

Gen Y suspect of autonomous vehicles. Is mistrust based in reality?

Even if automakers offer up self-driving cars, will consumers want them? And will acceptance vary depending on your generation? Read More...

Self-driving cars are stuck at idle, while driver assistance accelerates

Self-driving may be overhyped right now, but some remarkable ADAS features are already on the road, with more about to ship. Read More...

Tesla backlash shows misunderstanding of reality

Software-enabled hardware features, over-the-air updates, and common-platform design are becoming the rule, not the exception. Good or bad? Discuss. Read More...

HV Corotron monitors diesel emissions

Concerns over diesel emissions are nothing new. Read how some old-school tech handled measurements with the help of many, many volts. Read More...

Self-driving cars will save money and lives as they destroy jobs

Self-driving cars will save us money, time, and prevent death and injuries, but at what cost? Read More...

Can we accept autonomous vehicles with autonomous bugs?

Are the many bugs in today’s high-tech cars an indication of what may impede the widespread introduction of self-driving cars? Read More...

Developing a flying car

A gyrocopter design that has been approved for the road has this former automotive engineer’s attention, despite his skepticism of flying cars. Read More...

>> SEE ALL

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