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EETE JULAUG 2015

500W Intel Haswell ready ATX PC power supply is medically approved TRUMPower has designed a medically approved 500W TMPC-500H, passing rigorous testing for compatibility with the Haswell processor platform. Compared to the prior generation Ivy Bridge platform, the Haswell platform substantially cuts the minimum sleep power consumption by one order of magnitude from 6W to 0.6W. With its 90-264 VAC universal input and active PFC, the Haswell ready TMPC-500H can be used worldwide without the necessity of changing input settings. Its 87% to 90% efficiency meets 80 Plus Gold standard. The power supply is approved to ANSI/AMMI ES 60601-1: 2005, CSA C22.2 No. 60601-1:08 and IEC/EN 60601-1 3rd edition medical standards by UL and TUV. TRUMPower www.trumpower.com Bidirectional 2A charge/backup controller for supercapacitors LTC3110 is a bidirectional, programmable input current buckboost supercapacitor charger with active charge balancing for 1- or 2-series supercapacitors. The proprietary low noise buck-boost topology does the work of two separate switching regulators, saving size, cost and complexity. LTC3110’s input current limit and maximum capacitor voltage is resistor programmable. Average input current is accurately controlled over a 0.125A to 2A programming range. Pin-selectable Burst Mode operation improves light-load efficiency and reduces standby current to 40 μA, and shutdown current to less than 1 μA. Other features of the LTC3110 include 1.2 MHz switching frequency to minimise external component size; thermal overload protection; two voltage supervisors for direction control and end of charge; and one general purpose comparator with an open-collector output for interfacing with a microcontroller or microprocessor. Linear Technology www.linear.com CM7V-T1A Thin ceramic package kHz Crystal Consumer & AEC-Q200 automotive compliant, Size: 3.2 x 1.5 x 0.65 mm, Temperature range: -40°C to + 85°C and -55°C to + 125°C A u t h o r i s e d distributor MICRO CRYSTAL SWITZERLAND Our authorised distributor WDI AG is pleased to assist you.  +49 4103 1800-0  microcrystal@wdi.ag  www.wdi.ag/microcrystal AC/DC converter control IC targets SiC drives Rohm has announced the development of an AC/DC converter control IC designed specifically for SiC MOSFET drives in industrial equipment such as servers and other large power applications. The BD7682FJ-LB allows the easy implementation of SiC-MOSFETs to an AC/DC converter AC/DC converter design. Compared to silicon MOSFETs used in conventional AC/DC converters, SiC MOSFETs enable AC/DC converters with improved power efficiency by up to 6%. Components used for heat dissipation are not required (50W Class power supplies), leading to greater compactness. The specification of BD7682FJ-LB also include multiple protection functions that enable support for high voltages up to 690VAC, making them ideal for general industrial equipment while improving reliability. In addition to overvoltage protection for the supply voltage pin and brown in/out (undervoltage) countermeasure for the input voltage pin, overcurrent and secondary overvoltage protection functions are included. Rohm www.rohm.com 500W power supply minimises footprint Stadium Power’s AQF500 series are compact high efficiency 500W switch mode power supplies with active PFC. These single output power supplies offer high power density up to 26W per cubic inch in a 5 x 3-in. (127 x 76.2 mm) footprint. 12, 24 and 48V output voltage models are available offering efficiency up to 92% and are rated at 230W with natural convection cooling and 500W with fan cooling; all have an operating temperature range of -40 to +70°C. All models feature a universal input range from 90 to 264Vac, active power factor correction (PFC) meeting EN61000-3-2, remote On/Off control, output voltage sense, +5V stand-by output power and a 12V fan supply output. Stadium Power www.stadiumpower.co.uk www.electronics-eetimes.com Electronic Engineering Times Europe July-August 2015 39


EETE JULAUG 2015
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