N2Power’s 330W AC-DC power supply achieves 15W/in3 power density

Its maximum full-load efficiency of 90%, achieved through synchronous rectification, Or-ing MOSFETs and a unique active PFC design, means that the XL330-54 generates 23% less heat than most comparable power supplies, minimizing cooling requirements and increasing system reliability. The high efficiency delivers energy savings throughout the product’s life, providing greater return on investment.

The XL330-54 has two primary outputs: 54V/6.1A and 12V/9A, plus a 12V/1A auxiliary output. The 54V output is 2250VDC isolated from the other outputs making it Power-over-Ethernet compatible. The design allows active current sharing on the 54V output for up to four power supplies to be operated in parallel. N+1 operation can also be configured.

Other features of the power supplies include universal AC input (90-264VAC) and active inrush current protection of 10.5A at 240VAC, which does not change during operation. The XL330-54 CS is RoHS compliant and meets all major international safety and EMC requirements.

N2Power’s Vice President and General Manager, Randy Johnson, said, “With the rising price of energy across the globe, engineers now appreciate that efficiency gains of just a few percentage points deliver substantial cost benefits throughout a product’s operating life. For example, when a power supply is 90% efficient, rather than 87% efficient, that’s a 23% performance improvement and energy saving. N2Power delivers this improvement without compromising the product’s compact size or other desirable features.”