2026-09-21T01:35:05Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/105674 2023-07-11 col_2142_8888 col_2142_5131 com_2142_8887 com_2142_234 com_2142_5130

Rosenbaum, Elyse Rosenbaum, Elyse Krein, Philip Hanumolu, Pavan Banerjee, Arijit Reiman, Chloe Michelle 2019-11-26T20:35:02Z 2019-11-26T20:35:02Z 2019-07-11 2019-08 A scalable I-V model for latch-up in non-collinear PNPN devices is adapted from a previous model for collinear SCR devices. The model is applied to 14-nm FinFET test structures. Layout scaling trends for key latch-up metrics, such as holding and trigger voltage, are captured by the model in circuit simulation. TCAD simulation is used to gain physical insight into the behavior of non-collinear PNPN devices. The dynamic behavior of switched-mode power supplies is simulated by adopting a state-space representation. Piecewise linear models are used to represent the nonlinear switching devices within the power supplies. With state-space representation models, averaging techniques can be used to speed up simulation time. A reduced-order averaged model is used to predict the dynamic turn-on behavior of a flyback converter. A correction factor is added to the model to account for the effect of the snubber circuit. An Elementary Effects algorithm and a Bayesian inference routine are used to fit the averaged model to a more expensive netlist model. State-space models can also be used with the sampled-data method for state vector simulation. This approach is more accurate than the averaged model, but more computationally expensive. Computation time is reduced by calculating the matrix exponential using a decomposition method. With an efficient means of computing the matrix exponential, switching instances are updated reliably from previous computed values, providing a very quick means for event-detection state vector simulation. Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2019-11-26 without embargo terms The student, Chloe Reiman, accepted the attached license on 2019-07-11 at 10:10. The student, Chloe Reiman, submitted this Dissertation for approval on 2019-07-11 at 10:30. This Dissertation was approved for publication on 2019-07-11 at 13:12. DSpace SAF Submission Ingestion Package generated from Vireo submission #14265 on 2019-11-26 at 12:52:21 Made available in DSpace on 2019-11-26T20:35:02Z (GMT). No. of bitstreams: 4 REIMAN-DISSERTATION-2019.pdf: 3763744 bytes, checksum: a4acc6d71522b9f796e43054c4407cb6 (MD5) source_files.zip: 157605361 bytes, checksum: e23927e388b7832e5fa69a06cbfcb578 (MD5) LICENSE.txt: 4210 bytes, checksum: b8483be45629e580ebae1de206fb3bcd (MD5) PROQUEST_LICENSE.txt: 4556 bytes, checksum: aab1fcc931171ea80f7ba9f327e37844 (MD5) Previous issue date: 2019-07-11 application/pdf http://hdl.handle.net/2142/105674 eng Copyright 2019 Chloe Reiman silicon controlled rectifier SCR PNPN latch-up 14-nm switched-mode power supply SMPS flyback boost state vector simulation event detection Modeling and numerical methods for power electronic devices text text Electrical & Computer Eng Electrical & Computer Engr University of Illinois at Urbana-Champaign Dissertation Ph.D.