Date: 26/07/2010
Power Integrations releases 2 new standby power supply reference designs
Power Integrations has published two new standby power supply reference designs using its TOPSwitch-JX IC product family. The TOPSwitch-JX devices feature multi-mode control, minimize power wastage in standby and delivering high efficiency over a wide range of operating loads. This reference designs target applications that require over 90% full-load efficiency thus enabling it to meet standards such as the 80 PLUSā Gold or Silver PC specifications, EuP Lot 6 standby rules, or the new California requirements for TV power usage.
DER-246 is a general-purpose evaluation platform and describes a PC standby power supply based on TOPSwitch-JX TOP265EG that operates from 110 VDC to 400 VDC input and according to Power Integration provides over 91% efficiency at 12 V, 15 W.
DER-247, based on TOPSwitch-JX TOP264EG also describes a supply for a application operating from 110 VDC to 400 VDC input and providing over 87% efficiency at 5 V, 10 W. For TV and other consumer products, the designs make 20 mW available to the load for just 100 mW of input power.
David New, product marketing manager at Power Integrations, comments: "More and more power supply designs require very good light-load efficiency performance and, with PC power supplies moving to the 80 PLUS Silver and Gold specifications, the PC-standby portion of the design needs to be exceptionally efficient all the way from light load to full load. The innovative control technique and power MOSFET technology of TOPSwitch-JX allow it to deliver the performance needed for 80 PLUS Gold designs, saving component cost in other portions of the PC power supply."
TOPSwitch-JX is a highly integrated family of 16 power conversion ICs incorporating a 725 V power MOSFET for use in flyback power supplies. The TOPSwitch-JX multi-mode control algorithm maximizes power efficiency across the entire load range. They also yield high efficiency at full power, minimize power wasted during normal operation and reduce the complexity and expense of thermal management on the system.
For more information visit: www.powerint.com..