Open-frame power supplies for medical and industrial applications

COSEL Co, Ltd has introduced 1,000W free-air convection cooling power supplies, the AEA1000F series. For demanding applications, the series is able to provide 330% peak power for a period of up to 3,000 milliseconds. Intended for applications demanding a high level of safety, it is certified according to the EN62477-1 (OVC III) standard for industrial applications and is approved in accordance with ANSI/AAMI ES60601-1, and EN60601-1 3rd Edition for medical applications. The device is ideal for Body Floating (BF) applications and complies with 2MOPP (IN/OUT) and 1MOPP (OUT/FG) safety requirement.

The device layout is optimised for free-air convection making it excellent for use in equipment operated in low noise environments.

For low harmonic current distortion, the device uses active PFC, and the switching stage employs an LLC resonant topology deploying the most recent generation of power semiconductors, conferring to a typical efficiency of up to 95%. For extra power it can be connected in parallel, up to six units. When in parallel, by modifying the output voltage on the ‘Master’ unit, ‘Slaves’ automatically alter their output voltage to be of equal value.

Optimised for convection cooling, it can be operated within an ambient temperature range of -20C to +70C. Depending on the assembly method and ventilation employed in the final equipment, a derating could apply as specified in the technical documentation.

The series offers a full five-year warranty and conforms to the European RoHS, REACH and Low Voltage Directives.