Show simple item record

dc.contributor.authorAbdelghany, Mohamed A.
dc.contributor.authorKhairallah, K.
dc.contributor.authorElsayed, Mohannad Yomn
dc.contributor.authorEmira, Ahmed
dc.contributor.authorSedky, Sherif M.
dc.date.accessioned2015-08-04T06:22:25Z
dc.date.available2015-08-04T06:22:25Z
dc.date.issued2010-08
dc.identifier.citationAbdelGhany, M., Khairallah, K., Elsayed, M., Emira, A., & Sedky, S. (2010). A universal gyroscope driving circuit with 70dB amplitude control range. 2010 53rd IEEE International Midwest Symposium on Circuits and Systems. doi:10.1109/mwscas.2010.5548659
dc.identifier.isbn9781424477715
dc.identifier.issn15483746
dc.identifier.doi10.1109/MWSCAS.2010.5548659
dc.identifier.urihttp://hdl.handle.net/10754/564291
dc.description.abstractA CMOS variable gain driving circuit with output signal amplitude control for gyroscopes with wide range of quality factors is presented. The driving circuit can be used for gyroscopes with Q values higher than 500. The circuit uses a current-commutating switching mixer to control the gyroscope driving signal level. Conventional driving circuits use automatic gain control (AGC) which suffers from limited linear range and the need for an off-chip capacitor for the peak detector and loop filter. Two stage variable gain amplifier is used in the proposed design to ensure enough gain for oscillation for such a wide range of quality factors. Analog and digital amplitude control methods are used to cover wide range of driving signal amplitude with enough accuracy to hit the maximum driving signal level without sacrificing gyroscope linearity. Due to the high DC gain of the amplifier chain, DC offset resulting from mismatches might saturate the amplifier output. DC offset correction is employed using a secondary negative feedback loop. The proposed driving circuit is being fabricated in 0.6μm CMOS technology. © 2010 IEEE.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectDriving circuits
dc.subjectGyroscope
dc.subjectInertial sensors
dc.subjectMEMS
dc.titleA universal gyroscope driving circuit with 70dB amplitude control range
dc.typeConference Paper
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journal2010 53rd IEEE International Midwest Symposium on Circuits and Systems
dc.conference.date1 August 2010 through 4 August 2010
dc.conference.name53rd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2010
dc.conference.locationSeattle, WA
dc.contributor.institutionYoussef Jameel Science and Technology Research Center, American University in Cairo, New Cairo 11835, Egypt
dc.contributor.institutionPhysics Department, American University in Cairo, Egypt
dc.contributor.institutionFaculty of Engineering, Cairo University, Giza 12613, Egypt
kaust.personEmira, Ahmed


This item appears in the following Collection(s)

Show simple item record