ISSN:
1662-0356
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Allgemeine Naturwissenschaft
,
Technik allgemein
Notizen:
Implantable cardiac devices have very strict restrictions on energy dissipation sincebattery change requires surgery. Today the battery longevity of pacemakers during standard use isup to 10 years which might seem sufficient. However, new functionality is constantly beingintroduced requiring more advanced signal processing algorithms which in turn increase energydissipation. New battery technologies are of course beneficial, but compared to the progress ofelectronics according to Moore's Law, battery development is very slow and energy issues have tobe solved by more efficient implementations. Technology scaling will help us by reducingcapacitance and thereby lowering the dynamic energy. However, for technology nodes of 130 nmand below static energy dissipation due to leakage currents, which traditionally could be ignored,are becoming increasingly important. This is especially true for low sampling rate applications werethe dynamic energy often may be ignored. In this paper we will make an introduction to the topic,discuss the mechanisms of energy dissipation and present some specific solutions regardingimplementation of signal processing in implantable cardiac devices. Special attention will be givento reduced leakage and a dual mode operation
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/42/transtech_doi~10.4028%252Fwww.scientific.net%252FAST.57.195.pdf
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