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Power Electronics Europe News
Cosel adds 700W model to medical and industrial supply range

For efficient cooling in demanding medical and industrial applications, the power supply uses thermal conduction and has a power density of 31.1W per cubic inch. According to the company, this makes it one of the highest power density power supplies in its category for powering medical and industrial applications.

It is designed in accordance with safety standard IEC 60601-1, for BF (body floating) medical applications. Its high isolation and creepage distance also make it suitable for industrial applications. It complies with EN61558-2-16 (OVC III) and simplifies design to conform to EN60335.

The GHA700F is available in four output voltages: 24V DC / 29.2A, 30 V DC / 23.3A, 48V DC / 14.6A, 56V DC / 12.5A. Universal input voltage is 85 to 264V AC. Output voltage can be adjusted using the built-in potentiometer.

The GHA700F is up to 96% efficient. It includes inrush current limitation, over-current protection with automatic recovery when the fault condition is removed, and over-voltage protection. Operating temperature range is -20 to 70°C or up to 80°C chassis. Depending on the final equipment assembly and cooling conditions, a derating may apply, adds the company.

The power supply includes an active power factor corrector with a co-efficient of up to 0.95.  

The GHA700F has a 4,000V AC (2MOPP) input to output isolation voltage, 2,000V AC (1MOPP) input to frame ground (FG) and 1,500V AC (1MOPP) output to FG. In the case of the BF application, the GHA700F complies with the patient leakage current level of less than 100µA.

The GHA700F has received UL62368-1, EN62368-1, c-UL (equivalent to CAN/CSA-C22.2 No.62368-1), ANSI/AAMI ES60601-1, EN60601-1 3rd, c-UL (equivalent to CAN/CSA-C22.2 No.60601-1) approvals and complies with IEC60601-1-2 4th Edition and EN61558-2-16 (OVC III).

In conducted emission tests, the GHA700F complies with the FCC-B, VCCI-B, CISPR32-B, EN55011-B and EN55032-B. For further improved noise performance COSEL offers EMI / EMC filters type EAC-16-472.

The power supply is available with options including conformal coating, isolated 5V and 12V auxiliary output, remote control - power good, M3 threaded mounting hole, with an external hold-up time extension unit and models with a reinforced isolation in compliance with the IEC class II.

The GHA700F has a five-year warranty and conforms to the European RoHS and Low Voltage Directives.


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