AC-DC power supply reference board focuses on designs requiring ultra high efficiency
November 09, 2010 | Paul Buckley | 222901763
Future Electronics has introduced what the company claims is the industry's first complete AC-DC power supply reference board aimed at equipment that must comply with new stringent power efficiency regulations.
Page 1 of 2The new 'Power-Star' Future Electronics AC-DC Power Supply proof-of-concept development board implements advanced technologies at the power factor correction (PFC), conversion and rectification stages to achieve system-level efficiency of more than 94% under a wide range of load conditions.
The easily configurable board means that designers can implement in just a few hours a working, extremely efficient power supply for prototypes that consume between 100 W and 1 kW.
While evaluation boards separately for the PFC, conversion and rectification stages of a power supply are widely available from power IC manufacturers, Future Electronics is the first to introduce a development system that implements all three stages in one board.
Manufacturers are now facing up to an increased development workload as new regulations introduced by authorities in Europe, North America, China and elsewhere raise the minimum power efficiency requirements on mains-powered equipment.
The new 'Power-Star' AC-DC Power Supply board from Future Electronics exceeds all known minimum efficiency standards by a wide margin at full and low load, which means that designers can implement it in a proof-of-concept with confidence that it will comply with relevant regulations.
The board is also suitable for any design in the 100 W to 1 kW range that will benefit from a reduction in power losses and waste heat generation, and a consequent shrinking or elimination of heat sinking or other cooling mechanisms.
The board uses advanced techniques to minimise power losses at every stage of the power conditioning process. A dual-interleaved Boundary Conduction Mode (BCM) front end control IC, the Fairchild Semiconductor FAN9611, implements the required power factor correction functions.
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