Peak power open-frame power supplies for medical and industrial applications

COSEL Co, Ltd has introduced 600W free-air convection cooling power supplies, the AEA600F series. With demanding applications in mind, the series can provide 300% peak power for a period of up to 1,000 milliseconds. Intended for applications needing a high level of safety, the series 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. It is suitable for Body Floating applications and complies with 2MOPP (IN/OUT) and 1MOPP (OUT/FG) safety requirements. The device layout is optimised for free-air convection, making it excellent for usage in equipment being operated in low noise environments.

Created for international applications, the versatile series has an input voltage of 85VAC to 264VAC. Three output voltages are 24V, 36V and 48V with respective current ratings of 25A, 16.7A and 12.5A. Output voltage can be altered utilising a built-in potentiometer.

For low harmonic current distortion, the series utilises active PFC, and the switching stage employs an LLC resonant topology deploying the latest generation of power semiconductors, conferring to a typical efficiency of up to 95%.

For extra power, the devices can be connected in parallel, with up to six units. When in parallel, by adjusting the output voltage on the ‘Master’ unit, ‘Slaves’ neatly automatically adjust their output voltage to be of equal value.

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

In its open frame format, the AEA600F measures 41mm x 127mm x 186mm (1.61″ x 5″ x 7.32″) and weighs 1kg max. The series complies with safety requirements UL (USA), C-UL (Canada), DEMKO (Denmark), and TUV (Germany). The product is UL62368-1, EN62368-1, EN62477-1 (OVC III) certified.

The AEA series is ideal for many applications, including robots and robotics, infusion pumps, ventilators, process control, actuators, radio and transmission equipment, and emergency signalling.

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

Author: Chris Na

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