Power Management I Product News
TDK introduces convection-cooled, low cost DIN rail power supplies
TDK Corporation has introduced the TDK-Lambda DRB series of DIN rail power supplies for low power applications requiring competitively priced basic functionality. Designed to support the growing trend for simple and economic DIN power solutions in industrial, building automation and process control applications, the DRB series combines low cost and extremely compact dimensions with efficiency of up to 91%. No load power consumption is between <0.3W and <0.5W depending on the model type. “There’s strong customer demand for compact, convection cooled DIN rail power supplies that deliver their rated power without compromising long-term reliability,” says Martin Southam, Director of Marketing, TDK-Lambda EMEA. “Housed in a robust plastic case, the DRB supplies feature a narrow design, ranging from 18mm to 45mm, saving space on the DIN rail. We believe the DRB series is suitable for customers working to ErP or Eco-Design guidelines.” The supplies operate from a universal input of
85~264Vac and have EN61000-3-2 compliance, enabling worldwide use; moreover, they can withstand voltage of 300Vac surge for 5 seconds. The DRB series is available with 4 output power levels ranging from 15 – 100W and nominal output voltages of 5V, 12-15V, 24V or 48Vdc.
The supplies can operate at full load over a wide temperature range of -10 to +55°C (+70°C for 15W model). Typical ripple and noise is below 40mV and a green LED indicates DC OK. Other
Altera DC-DC power converter solutions boost power efficiency while cutting board space
features include over current and over voltage protection, and a hold-up time of up to 20 ms at 100Vac input voltage, full load. The smallest model measures just 18mm x 75mm x 90mm (DRB15-24-1); all DRB models will mount on either a TS35/7.5 or TS35/15 DIN rail offering engineers a flexible option for the various applications. In addition, they have been rigorously tested for shock and vibration while mounted onto the rail. The DRB series is approved to UL508 safety
standard for industrial control equipment. Further safety approvals include IEC/EN 60950-1 (2nd Ed.) and UL/CSA 60950-1. CE marked in accordance with the LV Directive, EMC Directive and RoHS Directive, the power supplies are designed to meet EN55022 and CISPR22 Class B for conducted and radiated EMI, and include a three-year warranty.
TDK-Lambda |
www.uk.tdk-lambda.com
Altera Corporation has announced four new reference designs that leverage the power technology obtained through its acquisition of Enpirion. The reference designs provide FPGA users and board developers with turnkey power solutions that not only increase power efficiency by up to 35 percent, but reduce board area and the overall bill-of-material (BOM) bulk capacitance costs by up to 50 percent. Reference designs are offered to customers as downloadable design packages and are demonstrated in hardware on Altera development kits. These reference designs take advantage of Enpirion PowerSoC DC-DC converters, which include integrated controllers, high-frequency power FETs and inductors in the smallest thermally efficient package. Ultra-small, these
high-performance components are optimised to deliver the dynamic performance required to power an FPGA, while fitting into the smallest board area. The Altera reference designs offer significant
productivity benefits to design teams from optimised board layouts to detailed schematics that make it easy for board developers to evaluate and integrate power-optimised technology into their FPGA-based system. The first power reference design available for download targets the Cyclone V SoC. Power reference designs targeting the Stratix V, Arria V and Cyclone V FPGAs which will be available later this quarter. Altera will demonstrate its power-optimised technology in hardware on four 28 nm development kits. “Power is an increasing challenge for our customers,” said Mark Davidson, marketing director of the power business unit at Altera. “Altera has looked to answer our customers’ calls by providing complete, easy-to-use, highly-efficient power solutions that are engineered to work alongside our industry- leading FPGA devices. With these solutions we are delivering more value to our customers by helping them build better systems in less time.”
Altera |
www.altera.com
Murata’s high efficiency DC-DC converter targets microcell transceivers
The new Murata Power Solutions PAE series of high efficiency 100 Watt DC-DC converters has been designed specifically for use with multi- channel power amplifiers such as those found in the latest generation of microcell wireless transceivers. With a typical efficiency of 92.5%, the fully
XP Power unveils ’ultra-efficient’ 200 W convection cooled power supplies
XP Power has introduced the CCB200 series of ultra efficient “green” 200 Watt single output AC-DC power supplies which are aimed at a broad range of medical and industrial applications. Suiting convection cooled applications that require a very high efficiency in an open frame design, the series has a typical efficiency of 94% and a maximum of 95%, with a flat efficiency curve across the entire operating load range above 20%. Compared to typical 200 Watt supplies, the CCB200, when delivering full power, generates 50% less dissipated heat, ensuring increased product lifetime. The high efficiency has enabled the convection-cooled units to be packaged in an industry standard 76.2 x 127.0 x 36.32 mm (3.0 x 5.0 x 1.43 inches), usually used for forced-cooled power supplies of this rating. No load power consumption is less than 0.5 W.
The series conforms to the ANSI/AAMI ES60601-1 medical 3rd edition safety standard and has approval for use in body floating (BF) applications where a patient applied part is used without the need for a further isolation stage. The CCB200 also complies with the UL/EN609501-1 safety standard for IT equipment.
Due to the high efficiency the CCB200 can deliver the full 200 Watt continuous output power over an extended temperature range from – 20 to +70 degrees C without any derating, and up to +85 degrees C with derating. The industry norm is typically + 50 degrees C before derating applies. The technology employed ensures the ultra
high efficiency rating is achieved from 90 VAC input, unlike current products in the market that have lower efficiencies at low line and
28 November 2013
isolated PAE series keeps power dissipation on the module to a minimum, reducing system temperatures and helping network operators save energy costs. The PAE series delivers 100W in an industry standard open frame eighth-brick package; the through-hole mounted converter is available with an optional baseplate for conduction cooled / cold wall applications typically found in base-station applications and remote radio heads.
The converter operates over the industry
standard TNV input voltage range of + 36 to +75 VDC around a nominal +48 VDC. The single +29.8 Vout can be adjusted over a wide range, from +23.84 to 32.78 VDC, to maximise flexibility for power amplifier system designers. Controls include remote On/Off control of either negative or positive logic. In addition, the converter has a number of protection features including over current, over temperature, input under voltage and output short circuit.
The PAE converter is designed to operate in
environments ranging from – 40 to + 100 degrees C. Input to output isolation is 1,500 VDC with a Basic insulation system to meet industry safety requirements. An optional baseplate is offered with an available “baseplate connect pin” that can be connected to system ground, providing additional flexibility for power system design engineers. The PAE series has been designed to meet the demanding “low noise” requirements in modern communications systems and will require minimal Vout filtering in most applications.
Murata Power Solutions |
www.murata.eu
Latest bipolar power transistor from ST looks to rival MOSFET energy efficiency
therefore have to specify derating. The full operating range of the CCB200 series is 80 – 300 VAC, with full power available from 90 – 264 VAC.
A total of 5 models are available providing the popular nominal outputs from + 12 to +48 VDC. A user trim function provides output voltage adjustment of -4 to + 5% of stated nominal in order to accommodate load losses. Protection features and control signals include power fail signal, remote sense and remote on/off.
XP Power |
www.xppower.com Components in Electronics
The 3STL2540 from STMIcroelectronics combines the cost and silicon-area efficiencies of a bipolar transistor with energy efficiency similar to MOSFETs of comparable rating, giving designers a space-saving solution for cost-conscious power- management applications and DC-DC converters.
The device is a -40V/-5A PNP transistor capable of full saturation with maximum voltage drop of 200mV at only 10mA base current. It can achieve an equivalent on-resistance of only 90m , which is close to the performance of comparable super logic-level MOSFETs. At the heart of this new device is ST’s advanced double-metal planar base island technology that enables the 3STL2540 to maintain consistently high current gain (hFE) of at least 100 over a wide output-voltage range from 0.2 to 10V and a temperature range from - 30°C to 150°C, offering the industry’s lowest
conduction losses for this type of device. The thermally efficient PowerFLAT package is only 0.6mm high with a 2mm x 2mm footprint enabling reliable, high-performance power circuitry within minimal pc-board space.
STMicroelectronics |
www.st.com www.cieonline.co.uk
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