POWER Motorsport batteries work harder
DMS Technologies reveals enhanced mechanical and electrical performance features in the Varley Red Top 15, 30 and 40 motorsport batteries. Revised internal construction is claimed to have improved the cranking capability whilemaintaining all other positive features of the batteries.
Instead of usingmale or stud terminals,
which can be vulnerable to accidental over- tightening and damage, the new batteries featuremore robust femaleM6 terminals. They will take up to amaximumof 6.8Nm, as opposed to only 3.9Nmfor the equivalent male/stud types.
www.varleyredtop.com Digital SMconverter saves space
version that facilitates higher density boards. Prime applications comprise datacenters, routers and telecom equipment.
This digitally controlled, PMBus compliant
converter addresses the need for high powermodules that require additional I/O. The FIP concept features pins that are inserted and aligned during the original assembly process to provide interconnection between the two solder pads.
Based on the company’s BMR453 DC/DC converter, Ericsson PowerModules’ BMR453 SI version adds floating inserted pin (FIP) technology to offer a surfacemount
In addition to input and output power
connections, additional I/O aremade available through amicro-interface. Based on a digital control loop and including a
PMBus interface, the BMR453 SI enables systemarchitects tomonitor, control and adjust parameters in real time.
BMR453 SI’smicro controller is designed
to sweep up discrete control and overhead components resulting in better integration, lower component count, less PCB area and improved reliability. Benefits are said to include increased power density, greater accuracy and reduced through life cost of ownership as a result of its high efficiency and intelligent energymanagement.
www.ericsson.com Bricks build efficiency
Murata Power Solutions has extended its HPQ range of quarter-brick isolated DC-DC converters with the HPQ-12/25-D48, a 300Wmodel with 12V output. The newmodel features a 2:1 input range of 36 to 75V, plus high output current of up to 25A and efficiency of up to 94.5 per cent.
The converter is ideal for a range of applications, fromindustrial and
instrumentation to computers and office equipment. Ripple and noise specifications ensure compatibility with circuits using CPUs, ASICs, programmable logic and FPGAs. The HPQ-12/25-D48 is also ideal for battery-powered and telecomequipment, as well as small instruments, area-limitedmicrocontrollers, data communications equipment, remote sensor systems, vehicle and portable electronics.
For systems requiring controlled startup/shutdown, remote on/off
control is available with negative or positive polarity. Users can also trimthe output voltage up or down by ±10 per cent with an external trimresistor. In its open frame package, the HPQ-12/25-D48 operates within the industrial temperature range of -40 to 85°C.
www.murata-ps.com 16 | September 2010
www.electronics-sourcing.eu
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