Technical Features

August 2010

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Figure 1: Power stage of the flyback converter (simplified)

Eleazar Falco, FAE, Würth Elektronik eiSos / Editor, Gerhard Stelzer

Isolated flyback converters often use optocouplers in the feedback loop to regulate the output voltage. As part of the compensation circuit, its parameters such as CTR influence the control loop and must be taken into account in the flyback converter design. The flyback converter is an isolated switching power

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Date:

04/01/2024

Powering CAN

Robert Regensburger, Senior Member of the Technical Staff, Applications, Maxim Integrated Products Inc., Munich, Germany

Charge pumps are often the best choice for powering a CAN-bus application that requires a combination of low-power, low-voltage operation and low cost. This article explains how to supply a high-speed CAN transceiver, via a charge pump, to achieve a 5V rail that is required for most transceivers to deliver ISO 11

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Date:

08/16/2010

Digital Isolators

Don Alfano, Director of Power Products, Silicon Laboratories Inc

For more than four decades, optocouplers have been the "default" signal isolation device, but CMOS-based digital isolation technology has made available smaller, faster and more reliable solutions

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Date:

08/01/2010

Integrated Driving

Patrick Sullivan, R&D Engineer, Isolation Products Division, Avago, Boeblingen, Germany

Its more than 10 years since the market introduction of Avago technologies first smart gate driver. At that time it was the world's first integrated IGBT gate driver optocoupler with inbuilt fault

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Date:

08/01/2010

Current Sensing in HEVs

Shaun Milano and Mike Doogue, Product Marketing, Allegro MicroSystems, Inc

Consumers are embracing environmentally friendly "green cars" as a result of the rising cost of fossil fuels and a growing concern for the health of the environment. Sales forecasts have predicted

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Date:

08/01/2010

Drive with Infineon's EiceDRIVERs

Laurent Beaurenaut, Senior Staff Application Engineer, Electric Drive Train Systems, Infineon Technologies AG, Germany

In order to fulfil increasingly stringent requirements to improve fuel economy and to reduce emissions, the automotive industry is looking for innovative solutions. In the future, e-Mobility is expected

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Date:

08/01/2010

Next Generation Automotive

Benjamin Jackson, Product Manager, Automotive MOSFETs, International Rectifier

With the recent upsurge in hybrid vehicle adoption and almost all major car OEMs now working on full electric vehicle projects, people often point out that this is old news. In many respects they

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Date:

08/01/2010

Essential Multicell Monitoring

Jon Munson, Linear Technology Corporation

Rechargeable battery packs prematurely deteriorate in performance if any cells are allowed to over-discharge, for example, in hybrid automobiles or lower-cost products like portable tools and backup

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Date:

08/01/2010

Swifter, Higher, Stronger -

Dr. Thomas Wirschem, National Semiconductor

According to IMS Research the number of video capable automotive head units will grow from 8.5 Mu in 2006 to 26.6 Mu in 2015. In order to present the information to the driver with less distraction

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Date:

08/01/2010

Automotive Air-Con Made Easy

Bart De Cock and Steven De Preter, ON Semiconductor, Belgium

In most automotive HVAC systems, a continuous inflow of fresh air is conditioned and brought into the cabin. Typically the driver can select whether the fresh air supply needs to be interrupted (recirculation)

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Date:

08/01/2010

Shining Bright

James Aliberti, Product Marketing Engineer, Power Supply Controls, Texas Instruments

In many high-power lighting applications such as street lights, high-bay stadium lighting and others, the trend is moving towards solid state lighting that uses LEDs as the lighting source. The reason

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Date:

08/01/2010

Power Electronics in Electric & Hybrid Vehicles

Brice Le Gouic, Market and Technology analysis, Power Electronics and related markets, Yole Développement

Here follows a paper submitted by Yole Développement, a market research and strategy consulting company, specialised in the MEMS fields as well as compound semiconductors, power electronics and photovoltaic.

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Date:

08/01/2010

Cool Running Autos

Thomas Sleasman and Birol Sonuparlak, Thermal Management Solutions, Rogers Corporation, Chandler, Arizona, U.S.

It has been forecast that by 2020 there will be upwards of 10 million passenger and light truck vehicles sold annually that are powered entirely or in part by electric motors. Starting with the leadership

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Date:

08/01/2010