
Low noise ac-dc converters serve medical applications
Stephen Law
Power Supply / Management Engineering power modules power modulesPOLYTRON DEVICES MHIA series of UL 60601-1 Third Edition recognized and 2MOPP-compliant linear encapsulated ac-dc power modules for medical applications are available with either a PC mount or chassis mount with screw terminal. Units provide 4000Vac reinforced insulation, as well as single, dual and triple outputs. Products deliver an extremely low output noise of 1.0mV rms and while providing a 2µA patient leakage current and a regulation line and load of 0.02 to 0.2%. In addition, these models have short circuit protection, CE certification and optional international input voltages including dual and switchable. http://www.polytrondevices.com
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