?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=A+199+%CE%BCW%2C+82.9%25+Efficiency+Current+Driver+with+Active+Common-Mode+Reduction+for+Impedance-Based+Tactile+Sensors&rft.creator=Wu%2C+Z&rft.creator=Wu%2C+Y&rft.creator=Demosthenous%2C+A&rft.description=This+paper+presents+a+differential+current+driver+based+on+a+current+feedback+structure%2C+designed+to+drive+hydrogel+sensors.+It+achieves+low+power+consumption%2C+low+common-mode+signal+on+the+load%2C+and+high+current+efficiency.+The+use+of+a+negative+unit+gain+buffer+reduces+the+common-mode+signal+on+the+load+arising+from+process+variations.+The+current+driver+was+designed+in+a+65-nm+CMOS+technology+with+a+3.3+V+supply.+Simulation+results+demonstrate+a+THD+of+0.4%25+at+125+kHz%2C+for+40+%CE%BCAp-p+output+current.+The+common-mode+voltage+on+the+load+is+reduced+by+98.96%25+compared+to+a+conventional+topology+using+two+independent+drivers.+The+total+current+consumption+is+60.3+%CE%BCA%2C+resulting+in+a+current+efficiency+of+82.9%25.+The+simulated+output+impedance+is+2.76+M%CE%A9+at+125+kHz+and+1.47+M%CE%A9+at+300+kHz.&rft.subject=Power+demand%2C+Power+measurement%2C+Impedance+measurement%2C%0D%0AHydrogels%2C+Current+measurement%2C+Simulation%2C+Tactile+sensors&rft.publisher=IEEE&rft.date=2024-07-02&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A++2024+IEEE+International+Symposium+on+Circuits+and+Systems+(ISCAS).++++IEEE%3A+Singapore%2C+Singapore.+(2024)+++++&rft.format=application%2Fpdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10195849%2F1%2F2024018836.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10195849%2F&rft.rights=open