Record Details     « New Search       Brief Record Full Record MARC Record     Bibliographic Data Control Number UPD-00000528682 Date and Time of Latest Transaction 20090717041138.0 General Information 070925s2004 ph eng Title Statement Current mode controlled power supply utilizing the Flyback topology for EDM applications / Carl Michael F. Odulio Main Entry - Personal Name Odulio, Carl Michael F. Cataloging Source DML Language Code eng Authentication Code DMLUC Local Call Number LG 995 2004 E64 O38 Publication, Distribution, Etc. 2004 Physical Description [ix], 65 leaves : col. ill Dissertation Note Thesis (M.S. Electrical Engineering)--University of the Philippines, Diliman Summary, Etc. Electrical discharge machining (EDM) uses controlled electric sparks to erode the metal in a workpiece, and this method is now a well established machining process for high power applications. EDM power supplies utilizing different topologies for high power applications (e.g. full bridge configuration) are widely available. Through the years, EDM process have increasingly been used in high precision machining and in manufacturing micromechanical components, with new low power topologies being investigated for the latter. We implemented a current mode flyback converter for use in low power EDM applications. This topology has an energy conservation feature and removes the need for output bulk capacitors. Energy used in the erosion process will come from energy stored in the flyback transformer and will be transferred to the small output filter capacitors and the effective capacitance of the tool, workpiece, and dielectric combination. A servomechanism that controls the arc distance will determine the output voltage. We have developed an EDM power supply prototype utilizing the flyback topology for low power applications with minimal components count and inherent protection under short circuit conditions. Our work includes the design, fabrication, and characterization of the whole system. We compared the efficiency and quality of work of our proposed topology with that of a linear converter Subject Added Entry - Topical Term Electric metal-cutting   Switching power supplies   Electric current converters Collection Category FI Location UP DENG-II LG 995 2004 E64 O38 E2000000288 Room-Use Only E-566t Collection Category UP Location UP DARCHIVES LG 995 2004 E64 O38 Room-Use Only UARD-11111T   UP DENG-II LG 995 2004 E64 O38 E2000000288 Room-Use Only E-566t Textual Physical Form Designator Thesis           Physical Location University of the Philippines Diliman Main Library: University Archives LG 995 2004 E64 O38 Diliman: College of Engineering Library II LG 995 2004 E64 / O38           Digital Copy Not Available          Add to Book Cart  |   Download MARC