750W AC-DC PSUs carry industrial & medical approvals
The GSP750 series occupies a 1U-high chassis and 4 x 10-inch footprint unit, and is aimed at OEMs building medical, industrial, test & measurement and instrumentation applications, especially applications that have peak power demands of up to 900W. Key applications including surgical, life support, imaging and blood processing products, as well as test and measurement equipment used in industrial markets that requires high power density to save space and enable smaller end products.
The series comprises a trio of models offering respective output voltages of 12, 24 and 48 VDC. The series features a 5V standby supply rated at up to 3A output to supply logic circuits, a key requirement for test and measurement applications. The series offers a high efficiency of 90 % and a very flat efficiency curve across the entire load range. The range employs resonant topologies throughout the design to minimise losses and reduce noise, as well as synchronous rectification to further reduce losses and enhance efficiency. Units in the series also feature intelligent variable-speed load-dependent fans to optimize acoustic noise. The fans also shut off at loads below 50W, when end equipment is in standby mode, extending fan life and further reducing noise levels.
Other specifications include: power-fail signal; signal level control of output; always-on 5 V output to supply logic circuits; output good LED; and remote sense and current sharing for up to three units. The series’ continuous output power of 750 W is delivered over a wide operating temperature range of –40 to +70° C with derating above +50° C.
XP Power; www.xppower.com
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