Gary A. Hazen
Schlumberger
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Publication
Featured researches published by Gary A. Hazen.
IEEE Transactions on Power Electronics | 2007
Vinod Rajasekaran; Gary A. Hazen; Bonnie S. Heck
Long resistive cables used in the operation of remote instrumentation impose fundamental limits on the amount of power delivered. Due to their constant-power load profile, switching regulators pose unique problems when operated at the end of long resistive cables. Some of the problems associated with the operation of switching regulators in these systems include limitations on power delivered at the remote-end, voltage jumps at startup and startup load cycling. Analytical calculations and experimental results are provided to validate the previously mentioned phenomena. Two new methods of power delivery based on state feedback control and parallel operation of switching and linear regulators to enhance stability and increase the power delivered at the remote-end are proposed and validated experimentally.
Archive | 2002
Dean M. Homan; Gary A. Hazen; Richard Rosthal; David L. Smith; Thomas D. Barber; Paul Michael Ray; Jacques R. Tabanou
Archive | 2006
Kuo Chiang Chen; Robert C. Smith; David T. Oliver; Gary A. Hazen; Dean M. Homan; Jan W. Smits
SPWLA 44th Annual Logging Symposium | 2003
Richard Rosthal; Thomas D. Barber; Steve Bonner; Kuo-Chang Chen; Sophia Davydycheva; Gary A. Hazen; Dean M. Homan; Charles Kibbe; Robert Schlein; Laurent Villegas; Hanming Wang; Feng Zhou
Archive | 1988
Gary A. Hazen; Don Macune
Archive | 2007
Ismael Martinez; Dean M. Homan; Laurent Villegas; Gary A. Hazen
Archive | 2003
Kuo-Chiang Chen; Robert C. Smith; Gary A. Hazen; Charles Kibbe; Richard Rosthal; Thomas D. Barber; Stephen D. Bonner; David T. Oliver
Archive | 1989
Gary A. Hazen; Don Macune
Archive | 1982
Gerald N. Minerbo; Gary A. Hazen
Archive | 1997
Stanley R. Thomas; Gary A. Hazen
