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.

LTC Design Note: Electrolytic capacitor-based data backup power solution for a 12V system with 5V to 36V input

This module provides hold-up power in e.g., embedded systems, and can also be combined with a buck-boost module for a robust power system suitable for automotive and other harsh environments. 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...

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...

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...

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...

DSPs power efficient automotive active noise control

Learn how DSP cores can be used to implement ANC and cabin sound design. 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...

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...

EDN Must Reads: Automotive

Automotive electronics is evolving into intelligent systems which are making drivers, passengers and pedestrians safer as well as lowering accident rates and ultimately insurance costs by saving lives, reducing injuries and property damage. The integration of a myriad of sensors (like LIDAR and RADAR), better and more efficient lighting with LEDs, efficient power electronics, Advanced Driver Assistance Systems (ADAS) and fool-proof cyber-security methods is paramount in achieving the success of these lofty goals in electric vehicles. This edition of EDN Must Reads, focusing upon Automotive, brings you a diverse collection of seven tech articles that will both educate and inspire designers, hobbyists, technicians, DIYers and anyone else interested in the latest amazing innovations in electronics technology for automobiles. 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 4.0: The new revolution?

Bus-fleet modernization can bring advanced power technology to a segment that has historically been slow to adopt new technologies, taking big steps toward Automotive 4.0. Read More...

Improving efficiency and performance in automotive applications through SiC

SiC has attracted attention for its superior performance over silicon and is being adopted in a variety of applications to improve efficiency. Read More...

Low-voltage tests uncover low-temperature IC problems

Testing automotive ICs with low voltages let us find and eliminate failures that only occur at low temperatures. Read More...

>> SEE ALL

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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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...

View signals in time and frequency

Rohde & Schwarz' RTO2000, is a compact lab oscilloscope for multi-domain applications, letting you see correlations between time, frequency, protocol and logic analysis measurement results. Read More...

Dynamic Envelope Tracking in a power supply for the automotive market

A new solution can efficiently and effectively handle any and all available automotive voltages of 24V/36V and 48V in automotive power systems in a single design. Read More...

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...

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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

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...

DSPs power efficient automotive active noise control

Learn how DSP cores can be used to implement ANC and cabin sound design. Read More...

Automotive 4.0: The new revolution?

Bus-fleet modernization can bring advanced power technology to a segment that has historically been slow to adopt new technologies, taking big steps toward Automotive 4.0. Read More...

Improving efficiency and performance in automotive applications through SiC

SiC has attracted attention for its superior performance over silicon and is being adopted in a variety of applications to improve efficiency. Read More...

Low-voltage tests uncover low-temperature IC problems

Testing automotive ICs with low voltages let us find and eliminate failures that only occur at low temperatures. Read More...

The latest in electric vehicle power management

The electric vehicle system, composed of an electric motor, power electronics converters, and energy storage devices, is the only readily available alternative to propel motor vehicles. Read More...

Autonomous automotive sensors: How processor algorithms get their inputs

Sensor electronics combined with better and more refined software algorithms will ultimately enable a safe fully-autonomous vehicle within the next ten years. Read More...

Modular AWGs: How they work and how to use them

Arbitrary waveform generators are inverse digitizers; the results you get depend on how you use them. Read More...

Proper oscilloscope setup yields correct ESD measurements

To get the right measurements of ESD pulses, you need to set trigger levels properly and use as much of the ADC as possible. Read More...

Partial and Pretended Networking Reduces CAN Power Consumption

Saving power by turning off subsystems is a challenge for CAN networks, until you redefine the network a little. Read More...

SiP package styles for magnetic position sensors have benefits for automotive applications

This article examines the case for using a complete MPOS system produced as a system-in-package, thus relieving the automotive supplier of the need to produce a PCB assembly when implementing magnetic position sensing. Read More...

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...

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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...

Driverless trucks: ROI triggers in IoT adoption

Driverless trucks are a great candidate to kick off the wave of driverless vehicles. Read More...

Why are 19-in. racks that size?

How did we settle on 19 in. as the standard size for an instrument rack? Read More...

DAC 2016 in pictures

The buzz from the 53rd DAC in Austin. Read More...

Sensing current on the high side

Here are some ways to sense current in a supply rail, which requires care to do right. Read More...

EDN turns 60, help us celebrate

EDN began life as Electrical Design News on May 8, 1956. Here's what to expect over the coming months as we celebrate the publication. Read More...

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