New Industry Products

1U PSUs Claim Highest Power Density and Offer PMBus

May 20, 2014 by Jeff Shepard

Excelsys Technologies, Ltd. announced the introduction of its new XSolo family of 1U-high, single-output switching power supply units (PSUs). The XSolo family is offered in a market-leading, convection-cooled 504W open-frame U-channel form-factor model (6.8 W/cu.in.) and an enclosed, fan-cooled chassis model that delivers up to 1008W (13.6 W/cu.in.). Capable of achieving 92% efficiency, these ultra-compact and rugged PSUs meet the exacting requirements of medical, industrial, IT and military COTs applications. Additionally, both models carry a five-year warranty.

The XSolo family features dual safety agency certification: EN60950-1 for industrial applications and EN60601-1, 2nd and 3rd edition for medical applications—fully meeting the creepage and clearance, 4kV a.c. isolation and <300uA leakage current requirements. The XSolo family also meets the voltage dip and interruption requirements of SEMI F47, as well as the environmental conditions per MIL-STD-810. In addition, the products are compliant with all relevant EMC emission and immunity standards.

The XSolo platform offers system integrators with a host of standard features, including variable fan speed, 12V/300mA isolated bias supply, remote ON/OFF, output voltage control and parallel operation for higher power applications. Nominal output voltages are 24V and 48V with wide adjustment ranges and user-defined setpoints. Maximum dimensions are 40mm(1U) x 238 mm x 128mm.

“Our XSolo modular power supplies provide the range of features and options that systems integrators require,” said John Stevenson, Excelsys’ North American VP. “Their compliance with a wide range of standards also helps simplify product selection and improve inventory control.”

Optional features include I2C for PMBus™ communications and ORing diodes for N+1 redundancy. The power supplies are also available with conformal coating and can be ruggedized for use in harsh environments. With convection-cooled power capability of over 500W, XSolo PSU’s are targeted for use in Hi-Rel MIL-COTS applications as well as sensitive acoustic laboratory and medical equipment.