Offline Non Isolated Converter Protection
Conference: PCIM Europe 2016 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/10/2016 - 05/12/2016 at Nürnberg, Deutschland
Proceedings: PCIM Europe 2016
Pages: 8Language: englishTyp: PDF
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Authors:
Sheehan, Cathal (Bourns Electronics, Ireland)
Scibilia, Roberto (Texas Instruments GmbH, Germany)
Abstract:
This paper examines the use of resettable polymer fuses for protecting offline Flyback converters. It uses a thermal model of the resettable fuse, surrounding solder pads and copper to optimize the trip time so that the converter is protected during overloads. There are two potential positions for the PTC in the circuit which are considered. One position is directly on the winding and the other position is beyond the control loop. Results are taken from the converter and compared with a simulation.