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1kW open-frame power supplies for medical and industrial applications

COSEL has announced the introduction of 1kW free-air convection cooling power supplies, the AEA1000F series.

Intended for demanding applications, the AEA1000F is able to deliver 330% peak power for a period of up to 3,000 milliseconds.

Designed for applications requiring a high level of safety, the AEA1000F 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 AEA1000F is suitable for Body Floating (BF) applications and complies with 2MOPP (IN/OUT) and 1MOPP (OUT/FG) safety requirement. The AEA1000F layout has been optimised for free-air convection making it suitable for use in equipment being operated in low noise environments.

The AEA1000F is certified to the EN62477-1 Over Voltage Category Three (OVC III), meaning that a final equipment powered by the products can be directly connected to the main distribution panel without adding an extra level of isolation. This simplifies the systems designer’s task, reduces costs and guarantees the highest level of efficiency.

For medical applications, the AEA1000F input to output isolation complies with 2MOPP, its input to ground with 1MOPP, and output to ground with 1MOPP making the product suitable for Body Floating (BF) applications. The units are approved in accordance with ANSI/AAMI ES60601-1 and EN60601-1 3rd Edition.

The AEA1000F has an input to output isolation of 4,000VAC, input to ground (FG) of 2,000VAC and output to ground (FG) of 1,500VAC.

Suitable for international applications, the AEA1000F has an input voltage of 85 to 264VAC. Three output voltages are available: 24V, 36V and 48V with respective current ratings of 42A, 28A and 21A. Output voltage can be adjusted using a built-in potentiometer.

For low harmonic current distortion, the AEA1000F uses active Power Factor Corrector (PFC), and the switching stage uses an LLC resonant topology deploying the latest generation of power semiconductors, conferring to a typical efficiency of up to 95%.

For additional power the AEA1000F can be connected in parallel, 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 AEA1000F can be operated within an ambient temperature range of -20 to +70C. Depending on the assembly method and ventilation used in the final equipment, a derating may apply as specified in the technical documentation.

The AEA1000F includes built-in inrush current, overcurrent, overvoltage protection circuits, and thermal protection.

In its open frame format, the AEA1000F measures 50 x 127 x 228.6mm (1.97 x 5 x 9 inches) and weighs 1.5kg max.

The AEA series is suitable for a large range of applications such as: robots and robotics, infusion-pumps, ventilators, actuators, process control, radio and transmission equipment, and emergency signalling

Author
Neil Tyler

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