Digital controlled Power Supplies

TDK-Lambda’s EFE Series of embedded frontend power supplies delivers 133% peak power capability for 10 seconds and offer a class leading efficiency of up to 90%. The first products in the range are the 300W EFE-300 and the 400W EFE-400. The EFE Series employs an 8-bit microcontroller for full digital control of the output and to handle housekeeping routines. Power densities of up to 22W/in3 are achieved under peak load conditions and 16.6W/in3 under continuous loading.

 The EFE-300 delivers 300W continuous power (400W peak for 10 seconds) with nominal outputs of 12V / 25A or 24V / 12.5A, and the EFE-400 delivers 400W continuous power (530W peak for 10 seconds) with nominal outputs of 12V / 33.3A or 24V / 16.7A. All models can be precisely factory programmed to accommodate non-standard system voltages. An additional 12V / 0.25A fan supply is also available and all models operate from 90 - 264VAC input with dual fusing as standard. Active power factor correction ensures EN61000-3-2 compliance. Other EMC improving design features, such as the use of SiC diodes, ensure curve B EMC performance with a significant margin.

 All products in TDK-Lambda’s EFE Series are approved to IEC/EN/UL/CSA 60950-1 for general purpose applications and IEC/EN 61010-1 for laboratory and process control applications. In addition, the units carry the CE mark according to the LV Directive and come with a three-year warranty.