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IEC 62366 is a process-based standard that aims to help manufacturers of medical devices to design for high usability. It does not address clinical decision-making related to use of the device. The standard will replace ISO/IEC 60601-1-6: Medical electrical equipment - Part 1-6: General requirements for safety - Collateral standard: Usability.
A cycloconverter (CCV) or a cycloinverter converts a constant amplitude, constant frequency AC waveform to another AC waveform of a lower frequency by synthesizing the output waveform from segments of the AC supply without an intermediate DC link (Dorf 1993, pp. 2241–2243 and Lander 1993, p. 181). There are two main types of CCVs, circulating ...
The tap converter is a variation on the cycloconverter, invented in 1981 by New York City electrical engineer Melvin Sandler and significantly functionally enhanced in 1982 through 1984 by graduate students Mariusz Wrzesniewski, Bruce David Wilner, and Eddie Fung.
A cycloconverter constructs an output, variable-frequency, approximately sinusoid waveform by switching segments of the input waveform to the output; there is no intermediate DC link. With switching elements such as SCRs, the output frequency must be lower than the input.
IEC 62366 Medical devices – Application of usability engineering to medical devices; IEC 62368 Audio/video, information and communication technology equipment; IEC 62379 Common control interface for networked digital audio and video products; IEC 62384 DC or AC supplied electronic control gear for LED modules – Performance requirements
CISPR 11, Industrial, scientific and medical (ISM) radio-frequency equipment - Radio-frequency disturbance characteristics - Limits and methods of measurement. CISPR 12, Vehicles, boats and internal combustion engine driven devices - Radio disturbance characteristics - Limits and methods of measurement for the protection of off-board receivers.
A cycloconverter is also a type of frequency changer. Unlike a VFD, which is an indirect frequency changer since it uses an AC-DC stage and then a DC-AC stage, a cycloconverter is a direct frequency changer because it uses no intermediate stages. Another application is in the aerospace and airline industries. Often airplanes use 400 Hz power so ...
IEC/TR 80002 Medical device software IEC/TR 80002-1:2009 Part 1: Guidance on the application of ISO 14971 to medical device software; ISO/TR 80002-2:2017 Part 2: Validation of software for medical device quality systems; IEC/TR 80002-3:2014 Part 3: Process reference model of medical device software life cycle processes