Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/27841
DC FieldValueLanguage
dc.contributorDepartment of Electronic and Information Engineering-
dc.creatorTang, KC-
dc.creatorWong, SC-
dc.creatorTse, CK-
dc.date.accessioned2014-12-19T04:14:25Z-
dc.date.available2014-12-19T04:14:25Z-
dc.identifier.isbn9781424456703-
dc.identifier.urihttp://hdl.handle.net/10397/27841-
dc.description2nd International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2010, Hefei, 16-18 June 2010en_US
dc.language.isoenen_US
dc.subjectDigital controlen_US
dc.subjectPhase-locked loop (PLL)en_US
dc.subjectResonant converteren_US
dc.subjectTranscutaneous power controlen_US
dc.titleDesign of a transcutaneous power regulator for artificial heartsen_US
dc.typeConference Paperen_US
dc.identifier.spage89-
dc.identifier.epage95-
dc.identifier.doi10.1109/PEDG.2010.5545916-
dcterms.abstractRecently, a high efficiency transcutaneous power regulator for artificial heart with PWM-PLL control has been proposed in the literature. In this paper, a new method of sensing the output voltage inside the human body utilizing the same power transcutaneous transformer as signal transmission media is introduced. The feedback signal is modulated in the secondary at a frequency band above the PWM-PLL cut-off frequency and below the converter switching frequency. In this way, the feedback signal can be demodulated from the primary current measured. A SPICE macromodel for the resonant converter is developed to help designing the control loop and the selection of modulation-demodulation frequency banks. Hardware prototype using single-chip DSP together with analog filters was built and control software was implemented as DSP program codes. PLL switching frequency locking function is done by using on-chip analog comparator, it saves extra hardware for PLL control. The voltage loop control algorithm uses a modified PI controller with input voltage feed-forward and output loading estimation.-
dcterms.bibliographicCitation2nd International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2010, 2010, 5545916, p. 89-95-
dcterms.issued2010-
dc.identifier.isiWOS:000298564700017-
dc.identifier.scopus2-s2.0-77956531425-
dc.relation.ispartofbook2nd International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2010-
dc.identifier.rosgroupidr48201-
dc.description.ros2009-2010 > Academic research: refereed > Refereed conference paper-
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