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333 results found, displaying items 121 - 140
Battery Pack Improves Li-Ion Management For Electric Vehicles
STMicroelectronics and LG Chem have announced plans to develop an automotive battery pack that will extend the potential of electric and hybrid electric vehicles, combining LG Chem’s lithium-ion (Li-ion) battery technology with a battery-management chip from STMicroelectronics.
1-A Switching Regulators Operate With 96% Efficiency To Replace Linear Regulators
The TSR-1 series switching regulators from Tracopower can be used as drop-in replacements for 78XX series linear regulators. The nine models in the TSR-1 series provide 4.75- to 32-V dc input ranges and output voltages of 1.5 to 15 V dc and 1-A output current.
Step-Down Switching Regulator Provides 60-V Input Transient Protection
The LT3682 step-down switching regulator from Linear Technology provides input transient protection up to 60 V. Its Burst Mode operation keeps quiescent current under 75 µA in no-load standby conditions.
Transportation Guidelines For Lithium Batteries Get Updated
Silicon Valley Innovation Can Solve The Energy Crisis
The innovation inherent in Silicon Valley is the key to solving the energy crisis and building the foundation for a sustainable future, according to a trio of CEOs from the valley speaking at EcoChip 2009, a media roundtable held at Actel Corp. John East of Actel, T.J. Rogers of Cypress Semiconductor Corp., and Brian Halla of National Semiconductor shared their provocative thoughts and insights on the environmental and economic challenges facing the world.
40-A Digital Voltage Regulator Enhances Control, Improves Efficiency
The digitally controlled, 40-A BMR451 non-isolated voltage regulator from Ericsson Power Modules offers a 7.9-A/cm3 (129 A/in.3) current density. With this density, its embedded features, and its ability to monitor vital parameters through the open-standard PMBus interface, it suits a broad range of applications in information communication and technologies.
White LED Driver Targets Automotive Display Backlighting Applications
The BD8113EFV-E2 white LED driver IC from Rohm Electronics provides constant current drive for white LED backlights in medium- to large-format automotive TFT-LCD displays.
Small Package Houses AC-DC Wall-Mount Power Supplies
The M8 series of 15-W ac-dc wall-mount power supplies from Autec Power Systems provides an easy to use and interchangeable ac plug system in a 150-g package that measures just 31 by 73 by 33 mm.
75-W DC-DC Converters Provide 4:1 Wide Inputs, Optional Terminal Block
Housed in an industry-standard half-brick footprint, the Mega Electronics 75-W PD75W dc-dc converters offer a 4:1 wide input and up to 90% efficiencies with 15 A of output current.
Redundant DC-DC Converter System With 200-W Modules Targets Heavy-Duty Environments
The BAP 236 redundant dc-dc converter system from Absopulse Electronics comprises up to six 200-W dc-dc plug-in modules in a pre-wired 3U by 19- by 13-in. shelf.
Power.org Releases Embedded Platform Standard
The newly released Power.org Standard for Embedded Power Architecture Platform Requirements (ePAPR) aims to speed software porting and reduce development costs for operating system and platform designers.
Switch-Mode ICs Promote Efficient Power Management, Part 2: DC-DC Controllers And Converters
Switch-mode ICs play a dominant role in optimizing the efficiency and minimizing the size of power-conversion subsystems used in consumer, computer, and industrial equipment.
175-W AC-DC Power Supply Fits Into 1U Spaces
Measuring just 3 by 5 by 1.25 in. (76.2 by 127 by 31.8 mm), the CLC175 single-output, open-frame ac-dc power supply from XP Power fits into a standard 1U space and offers 9.3 W/in.3
DC Power Jack Sockets Offer Three- And Four-Pin Options
The KPJX-CM series of dc power jack sockets from Kycon provides reliable cable mounting in three-pin and four-pin options. As members of the company’s Snap and Lock DC Power Connector Line, these devices include panel-mount or non-panel-mount sockets as well as a cable-mount plug.
Bob's Mailbox
Columnist Bob Pease takes on Alan Greenspan and ways to stay warm and save gas this winter in this bonus edition of Bob's Mailbox.
100-W DC-DC Converter Modules Target Industrial Applications
The 100-W dc-dc converter modules in the TEP-100 dfgn series from Tracopower target industrial applications where PCB mounting isn’t an option. These isolated, high-performance devices come in a metal enclosure with four M3 inserts so they can be attached to a chassis or heatsink.
Low-Ripple DAC Implementation
In an example DAC application using Actel’s CorePWM IP DirectCore in low-ripple DAC mode, PWM output is averaged to a varying dc voltage. At reset, the PWM duty cycle, or level out value, is 100% and the voltage increases to the rail of 12 V.
Eighth-Brick Converters First To Offer 4:1 Inputs
According to the company, the UWE series from Murata Electronics North America UWE comprises the first eighth-brick dc-dc converter modules to support 4:1 ultra-wide inputs, 9 to 36 V dc or 18 to 75 V dc.
1-W DC-DC Converters Raise Efficiency Bars
Specifying typical efficiencies from 84%, the single-output MEV and dual-output MEA series 1-W dc-dc converters from Murata Electronics North America deliver a load-regulation performance of less than 5% with an overall load-regulation tolerance envelope of 9%.
BASF, OSRAM Make A Breakthrough In OLED Lighting
BASF and OSRAM have created the first organic LED (OLED) to achieve a light yield of more than 60 lumens/W while also meeting the international Energy Star SSL Standard for color requirements.
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