Compact 508W AC-DC power supply targets medical designs

June 26, 2019 // By Nick Flaherty
Compact 508W AC-DC power supply targets medical designs
Tumbler Technologies and TRUMPower have launched a series of low-profile, open-frame AC-DC power supplies for medical designs with 500W with forced air cooling.

The TSM500 AC-DC power supply series comes as an open frame PCB in a low profile 5” (L) by 3” (W) by 1.38” (H) and is able to deliver 508.6W of continuous output power with 25 CFM of user provided forced air cooling or 240W at convection cooling. It offers a single output of 12V, 15V, 19V, 24V, 30V, 36V or 48V at efficiencies up to 92%, depending on the model. 

The AC-DC power supply can withstand voltages of 4,000 VAC from input to output and 2,000 VAC from input to ground. The power supply unit is equipped with remote on/off capabilities and 5V standby and fan power with a no load power consumption of 1W typically. The series has an earth leakage current measuring 100µA maximum at 240 VAC, 60 Hz.

Operating at a 90 to 264 VAC universal input, the AC-DC power supply series supports a wide range of environmental conditions including operating altitudes up to 5,000 meters and operating temperatures between -40°C to +70°C ambient, while derating linearly from 100% load at +50°C to 50% load at +70°C. The power supply is also equipped with standard overvoltage, overload, and short circuit protections. It has 200,000 hours-minimum MTBF at full load, 25°C ambient, calculated per MIL-HDBK-217F, making it a highly reliable power supply.

The TSM500 is approved to the latest medical standards, including IEC/EN/UL 60601-1 Edition 3.1, ANSI/AAMI ES 60601-1: 2012, and CSA C22.2 No. 60601-1: 2014. The PCB power supply complies with IEC/EN 60601-1-2 4th edition medical EMC and immunity standards including FCC/VCCI class B (conducted and radiated emissions), EN 61000-3-2, EN 61000-3-3, EN 61000-4-2, EN61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 61000-4-8, and EN 61000-4-11.

More details on the TSM500 series  or

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