Medical Power Supply Requirements

Engineers designing power supplies for medical applications have some unique challenges.

Medical power supply requirements.

The efe300m series from tdk lambda is an example of a power supply that meets all the isolation requirements for the iec60601 1 medical standard. There are specific existing and new requirements for medical safety. To protect patients power supplies for medical devices must meet stringent requirements in regards to leakage and stray currents. Any shortcoming in isolation risks electric shock.

They need to understand not only the application but the stringent requirements of the medical standards. Power supplies for medical technical equipment in order to meet the above requirements in particular with regard to insulation and leakage currents a combination of high quality ac dc power supplies for medical application and dc dc converters is often the most efficient solution. Based on tdk lambda s modified llc topology these bf rated supplies fit in 1u enclosures and feature 90 to 264 vac input an oring fet 350 to 400 w peak for 10 s and full digital control. Cui s wide range of medical power supplies are certified to the most recent edition of the international safety standard iec 60601 1 edition 3 1 as well as the 4th edition emc requirements for 2 x mopp applications.

Medical grade power supplies have been specially designed to meet the iec60601 medical equipment safety standard. Philip lechner avnet abacus looks at what s needed for a particular application. Iec60601 rated power supplies must have effective and reliable isolation between the ac input to the power supply the internal high voltage stages and the dc output. Medical appliances often require various dc voltages for the ap instrument that differ from the main system dc voltage provided.

Power supplies play a critical role in ensuring patient safety with any medical device and must meet strict international standards.