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Wide Input Range, Medically Approved DC:DC Converters from Gresham Power Electronics
Tuesday, October 10, 2017
The TWA3/MHI and TWB3/MHIA5 Series of DC:DC converters now available from Gresham Power Electronics

The TWA3/MHI and TWB3/MHIA5 Series of DC:DC converters now available from Gresham Power Electronics

Gresham Power Electronics the Salisbury based Defence and Commercial power conversion specialist, announces the availability two new series of DC-DC converters from Polytron Devices approved for use in medical applications including equipment and devices used in close proximity to patients.

Both series are in the industry standard miniature DIP Package and provide a regulated 3 watt output with the TWA3/MHI featuring a 2:1 wide input voltage range while the TWB3/MHIA5 Series has an ultra-wide 4:1 input voltage range. Both provide regulated single or dual output voltages over the range 3.3 to 24VDC or +/-5 to +/15VDC and have input voltage options from 4.5 to 72VDC. Polytron DC-DC converters can be supplied for through-hole printed circuit board mounting or surface mount form for automated assembly.

Standard features include, High Efficiency up to 89%, operating temperature range -40 to +105 C (with derating), reinforced Insulation, clearance and creepage distance 8.0 mm/2MOPP, 5000VAC input to output 2MOPP Isolation, 2µA patient leakage current, built-in EMI Class A filter, medical safety approvals including: UL, CE and ANSI/AAMI ES60601-1, EN60601-1 and IEC60601-1, ROHs Compliant to 2011/65/EU.

Typical applications for the TWA3/MHI and TWB3/MHIA5 Series of DC:DC converters include diagnostic and therapy equipment, Home equipment including nebulizers and blood pressure monitors, X-ray machines, surgical tools with lights, lasers and video microscopes, defibrillators, medical devices and equipment, portable ventilators, 3D laparoscope, pain-monitoring devices, aesthetic machines, medical analysers, medical aesthetic devices, medical endoscope devices, dental chairs and haemodialysis devices

Jake Moir, Managing Director of Gresham Power, comments, “The medical electronics market continues to grow with home and portable equipment becoming much more popular. Medically approved DC:DC converters featuring wide input voltage ranges provide point of load power conversion for mains or battery powered medical electronic products.”

Gresham Power now offers industrial, medical, CompactPCI, rail and transportation, test and laboratory power solutions from world class manufacturers including Polytron Devices, EOS Power, Vox Power, Magna-Power, Advice Electronics and Digital Power. The range include market leading and cost competitive open frame power supplies, modular configurable and encapsulated power supplies, programmable power supplies and electronic loads and DC:DC converters.

Gresham’s vast experience of designing and manufacturing defence power systems is available to customers to provide modified standard or full custom power supply designs if required. Gresham can also supply a new range of defence power products for land based or vehicle applications to complement its world-leading naval power systems.
The full Gresham Power Electronics product range includes; OEM and external power supplies for advanced multi-media applications, medical, industrial, defence, communications and broadcast systems and LED lighting. Hot-swap power shelves and products for telecoms as well as static frequency converters, DC UPS, distributed power systems and DC:AC inverters for Naval Defence markets. For more information visit www.greshampower.com, call +44 (0)1722 413060, email sales@greshampower.com or download the latest catalogue at http://www.greshampower.com/_literature_130736/Gresham_Brochure_2017

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