AC/DC PSUs provide constant current output to almost 0 V.
Press Release Summary:
With up to 93% typ efficiency and >10 W/in.³ power density, HDS series single-output power supplies include 9.80 x 5.00 x 1.61 in., 800 W models and 11.02 x 5.0 x 2.5 in., 1,500 W models. Output voltage and current are programmable from 0%–105% of stated nominal through serial RS232 interface, I²C interface, 0 to +5 Vdc input, or external potential divider. There are 7 models that accommodate full 90–264 Vac universal input range and collectively cover nominal outputs from +12 to +60 Vdc.
Original Press Release:
Programmable 800 and 1500 Watt PSUs Provides Constant Current Output Down to Almost Zero Volts
XP Power today announced the HDS series of 800 and 1500 Watt highly efficient programmable AC-DC power supplies. With a typical efficiency of up to 93%, these single output low profile supplies measure 9.80 x 5.00 x 1.61 inches (249.0 x 127.0 x 40.9 mm) for the 800 Watt models and 11.02 x 5.0 x 2.5 inches (280 x 127 x 63.5 mm) for the 1500 Watt range and fit into an industry standard 1U or 2U profile. Two front mounted variable speed fans, included in the above dimensions, help conserve energy and keep noise to a minimum. The power density of these compact units is greater than 10 Watts per cubic inch.
Both the output voltage and output current are programmable from 0% through to 105% of stated nominal through a serial RS232 interface, I2C interface, a 0 to +5 VDC input or via an external potential divider. By programming the output current a true constant current output is achieved down to almost zero volts, this being significantly better than the industry norm which is typically only down to 20-40%.
The HDS series comprises seven models covering the popular nominal outputs from +12 to +60 VDC. The output voltage for both series can also be manually adjusted +/- 5% by a trim function in order to make up for line losses. Both ranges also provide a user selectable standby output of 5 VDC / 0.5 Amp or 9 VDC / 0.3 Amp when the AC input is present.
The units include a comprehensive set of signals and controls such as remote on/off, AC OK, remote sense, PWM switching and overtemperature shutdown. A multifunction LED indicates the power supply status and gives warning notifications through use of different colours and blinking rates. In addition, I2C serial data connections provide for bi-directional data transmission between the power supply and external monitoring / controlling equipment.
A current sharing function provides for parallel operation of up to five power units for applications that might require a higher output power or for redundancy purposes. This also allows for system scalability of any future increased power requirements. Accommodating the full universal input voltage range of 90 - 264 VAC, the HDS800/1500 is suitable for world-wide use. They have an extended operating temperature range from -10 degrees C to +70 degrees C (+60 degrees C for HDS1500) with no derating until +50 degrees C. The series is approved to the internationally recognized safety specification IEC 60950-1 for ITE, industrial and commercial equipment. The units also comply with EN55022 Class B specification for conducted and radiated EMI.
Typical applications for the HDS800/1500 include use in semiconductor manufacturing equipment, battery charging and automatic test equipment.
The HDS800 is priced at $296.40 each in 500 pcs quantities. HDS1500 models are $585.00 for 500 pcs orders. They are available direct from XP Power and come with a 3 year warranty.
For further information and reader enquiries:
Duane Darrow, XP Power, 990 Benecia Avenue, Sunnyvale, CA 94085
Tel: (971)-322-0326 Email: ddarrow@xppower.com
Fax: (408)-732-2002Â Web: www.xppower.com
William Sng SK, XP Power (Singapore) PTE LTD
Tel: +65 68469368Â Â Email: wsng@xppower.com
Fax: +65 67418730Â Â Web: www.xppower.com
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Notes
XP Power is committed to being a leading provider of power solutions, including AC-DC power supplies and DC-DC converters. With ISO9001:2008, XP Power offers total quality, from in-house design through to manufacturing facilities around the world. The company offers the widest range of power products available from one source and unrivalled technical and customer support, aiding both vendor consolidation and cost reduction programmes. XP has 27 sales offices throughout Europe, North America and Asia.
XP Power Ltd, a London Stock Exchange listed public company, has design centres in Fyfield (UK), Orange County (California), and Singapore, which also serves as the company's headquarters. Manufacturing is carried out near Shanghai, China and Ho Chi Minh City, Vietnam. The design teams push back the boundaries of cost and technology, providing market leading power products. Dedicated in-house Engineered Solutions teams provide customer specific solutions, with rapid response times. The applications team provide expert technical support to help customers integrate and use XP power products worldwide.
www.xppower.com
