Technical Features

August 2011

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Figure 1: Some battery chemistries compared

An Integrated Solution to Li-ion Battery Management

John Carpenter, Product Development Manager, Qorvo

This article discusses the issue and describes cost-effective integrated solutions that can also add extra user benefits, including state-of-charge and state-of-health monitoring. Going back in history, perhaps hundreds of chemistries have been proposed for batteries. These have ranged from the original copper,

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Date:

11/30/2023

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Figure 1: Supply lines - eliminate loops and decouple at local boundaries

EMC Compliance

Paul Lee, Director of Engineering, Murata Power Solutions

International regulations regarding electromagnetic compatibility (EMC) affect many aspects of circuit and system design. However, there are numerous techniques that can be applied to reduce both

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Date:

08/17/2011

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Figure 1: Structure of the SaberRD environment

Multi-domain Simulation

Thorsten Gerke, Business Development Manager, Saber product line Synopsys Inc & Kurt Mueller, Business Development and Consulting Services Manager, Saber product line Synopsys Inc

Electrification is driving the need for comprehensive multi-domain system simulation in hybrid-electric and electric vehicles. A vehicle's power electronic components, coupled with the overall

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Date:

08/17/2011

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Table 1: Teseo-II Urban Canyon Performance

System-on-Chip GNSS Solution

Jeff Wilson, Senior Staff Engineer, STMicroelectronics

Global Navigation Satellite System (GNSS) is the general term for satellite tracking systems and covers GPS, Galileo, GLONASS, QZSS and Compass constellations. Systems for urban canyon applications

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Date:

08/16/2011

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Figure 1: The Die Free package resistances of different power semiconductor packages

Power Packaging

Benjamin Jackson, Manager Automotive Power Switch, Product Management & Business Development, International Rectifier

The 2011 automotive year started with the Detroit Auto show where the new Chrysler 300 was launched, its headline, a 3.6l V6 engine delivering a whopping 292 hp (218 kW), 41 hp (31 kW) more than

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Date:

08/16/2011

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Figure 1: The new innovative body architecture allows a significant wire harness reduction in comparison to today's architecture

Automotive Lighting - LEDS

Herbert Hopfgartner and Stefan Stoegner, Application Engineers, Infineon Technologies

One of the latest automotive design trends is LED lighting. LEDs (Light Emitting Diodes) are used for tail lights, interior lights such as ambient lighting, and LED front lights. Front light

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Date:

08/16/2011

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Figure 1: Ballast-Igniter Circuit

Automotive Lighting - HID Applications

Evangelista Boni, Davide Montanari, Luca Caliari, Kemet Electronics Italy John Bultitude, Reggie Phillips, Mark Laps, Bill Sloka, William Buchanan, KEMET Electronics Corporation

High Intensity Discharge (HID) headlamps are superior replacements for conventional heated-filament headlamps that require about 25kV applied to the lamp electrodes to ionize the Xenon gas and

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Date:

08/16/2011

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Figure 1: Typical positioning of high-voltage vehicle components

EV/HEV Measurements

Dipl.-Ing.(FH) Harry Störzer Manager Application and Support IPETRONIK GmbH & Co.KG

Recent industry trends toward high-performance electric and hybrid vehicle (EHV) drives has created a whole new set of testing requirements. New Drive Technologies, New Safety Requirements New

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Date:

08/16/2011

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Figure 1: Principle of Car Wiring Harness Pulse Immunity Test Using an ESD Simulator ("ESD Pulse Gun")

Automotive Protection

Stephan Gerlach, Senior Applications Engineer, Atmel, Heilbronn, Germany

System-level tests for EMC pulse immunity have been established in order to test the immunity of an electronic device or module against strong electromagnetic fields such as a close AM or FM transmitter

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Date:

08/15/2011

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Figure 1: Boost Buck Structure

Power Design for Vital Auto Devices

Jun Liu and Zaki Moussaoui, Intersil Corporation, Milpitas, CA

A main challenge for an automotive power system designer is to deal with the 12V car battery voltage fluctuations. The battery voltage can drop significantly during load crank. This voltage

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Date:

08/15/2011

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Figure 1: Typical LTC3859A Start/Stop Application Schematic

Auto Efficiency

Bruce Haug, Sr. Product Marketing Engineer, Power Products, Linear Technology

Many automotive manufactures have devised a clever way of saving fuel in automobiles by using a new concept called a "Start/Stop" system. This system automatically switches off the engine when

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Date:

08/11/2011

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Figure 1: Spectrum of a 250A DC charger used for testing G3-PLC operation

Electric Vehicle Dynamics

Jim LeClare, Principal Member of Technical Staff and Scot Robertson Executive Business Manager for Powerline Products, Maxim Integrated Products

Electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs) are building a viable market of mobile electrical energy consumers. New relationships between electricity providers (the utility

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Date:

08/04/2011