Journal Papers


  1. Y. wen, and O. Trescases, "Analysis and Comparison of Frequency Stabilization Loops in Self-Oscillating Current Mode DC-DC Converters," IEEE Transactions on Power Electronics, accepted Nov. 2012.
  2. O. Laldin, M. Moshirvaziri and O. Trescases, "Predictive Algorithm for Optimizing Power Flow in Hybrid Ultracapacitor/Battery Storage Systems for Light Electric Vehicles," IEEE Transactions on Power Electronics, accepted Oct. 2012.
  3. Yue Wen and O. Trescases, "DC-DC converter with digital adaptive slope control in auxiliary phase for optimal transient response and improved efficiency," IEEE Transactions on Power Electronics, vol. 27, no. 7, pp. 3396-3409, July 2012.
  4. S. Poshtkouhi, V. Palaniappan, M. Fard and O. Trescases, "A general approach for quantifying the benefit of distributed power electronics for fine grained MPPT in photovoltaic applications using 3D modeling," IEEE Transactions on Power Electronics, vol. 99, no. PP. Oct. 2011. (download).
  5. O. Trescases, A. Prodic and W.T. Ng, “Digitally controlled peak current-mode DC-DC converter IC,” IEEE Transactions on Circuits and Systems I, vo. 58, no. 1, pp. 219-231, 2011. (download).
  6. O. Trescases, G. Wei, A. Prodic, W.T. Ng, “Predictive Efficiency Optimization for DC-DC converters with highly dynamic digital loads,” in IEEE Transactions on Power Electronics, vol. 23, no. 4, pp. 1859-1869, 2008. (download)
  7. O. Trescases, G. Wei, A. Prodic, W.T. Ng, “An EMI Reduction Technique for Digitally Controlled SMPS,” in IEEE Transactions on Power Electronics, vol. 22, no. 4, pp. 1560-1565, 2007. (download)
  8. H. P. E. Xu, O. Trescases, I-S. M. Sun, D. Lee, W.T. Ng, K. Fukumoto, A. Ishikawa, Y. Furukawa, H. Imai, T. Naito, S. Tamura, K. Takasuka and T. Kohno, “Design of a rugged 60V VDMOS transistor,” Circuit, Devices & Systems, IET, Vol. 1, No. 5, pp. 327-331, October 2007. (download)


Conference Papers


  1. S. Zhao, J. Xu, O. Trescases, "A dimmable LED driver for visible light communication (VLC) based on LLC resonant dc-dc converter operating in burst mode," IEEE Applied Power Electronics Conference (APEC), 2012, (accepted).
  2. J. Varley, M. Martino, S. Poshtkouhi and O. Trescases, "Battery and ultra-capacitor hybrid Energy storage system and Power Management Scheme for Solar-Powered Wireless Sensor Nodes", IEEE Industrial Electronics Conference (IECON), 10-2012. (download).
  3. MacCleery, O. Trescases, M. Mujagic, O. Stepanov, "A New Platform and Methodology for System-Level Design of Next-Generation FPGA-based Digital SMPS", IEEE Energy Conversion Conference and Exposition (ECCE), Raleigh, USA, Sept. 2012. (download).
  4. S. Zhao, K. Cao, S. Firwana, A. Swaris, R. Content, O. Trescases, "Failsafe Smart LED Module with Thermal Management, String Current Balancing and Commutation for Lifetime Extension", IEEE Energy Conversion Conference and Exposition (ECCE), Raleigh, USA, , Sept. 2012. (download).
  5. M. Zaman, S. Poshtkouhi, V. Palaniappan, K. W. Li, H.J. Bergveld, S. Myrskog and O. Trescases, "Distributed Power-Management Architecture for a Low-Profile Concentrating-PV System," IEEE EPE-PEMC, ECCE Europe, Novi Sad, Serbia, 2012. (download).
  6. S. Poshtkouhi, A. Biswas, and O. Trescases, "DC-DC Converter for high granularity, sub-string MPPT in photovoltaic applications using a virtual parallel connection," IEEE Applied Power Electronics Conference and Exposition (APEC), Orlando, USA, Feb. 2012, pp.86-92. (download).
  7. M. Moshirvaziri, C. Li and O. Trescases, "A quasi-resonant bi-directional tri-mode dc-dc converter with limited valley current," IEEE Applied Power Electronics Conference and Exposition (APEC), Orlando, USA, Feb. 2012, pp.517-523. (download).
  8. O. Laldin, M. Moshirvaziri, O. Trescases, “Optimal power flow for hybrid ultracapacitor systems in light electric vehicles” IEEE Energy Conversion Conference and Exposition (ECCE), Pheonix, USA, Sept. 2011 (download).
  9. S. Zaman, K. Cao, O. Trescases, W.T. Ng, “H2-optimal thermal management for multi-phase current mode buck converters,” IEEE Energy Conversion Conference and Exposition (ECCE), Pheonix, USA, Sept. 2011 (download).
  10. O. Trescases, Y. Wen, "A survey of light-load efficiency improvement techniques for low-power dc-dc converters, "IEEE International Conference on Power Electronics (ICPE), Jeju, Korea, June 2011, pp.326-333. (download)
  11. J. Wang, W.T. Ng, O. Trescases, “Versatile capabilities of digitally controller integrated dc-dc converters,” IEEE Symposium on Circuits and Systems (ISCAS), Rio de Janeiro, Brazil, May 2011, pp. 293-296. (download)
  12. S. Poshtkouhi and O. Trescases, "Multi-input single-inductor dc-dc converter for MPPT in parallel-connected photovoltaic applications," IEEE Applied Power Electronics Conference and Exposition (APEC), Forth Worth, USA, 2011, pp. 41-47. (download)
  13. Y. Wen and O. Trescases, "DC-DC Converter with digital adaptive slope control in auxiliary phase to achieve optimal transient response," IEEE Applied Power Electronics Conference and Exposition (APEC), Forth Worth, USA, 2011, pp. 331-337. (download)
  14. A. Parayandeh, O. Trescases and A. Prodic, "10 MHz peak current mode dc-dc converter IC with calibrated current observer," IEEE Applied Power Electronics Conference and Exposition (APEC), Forth Worth, USA, 2011, pp. 897-903. (download)
  15. K. Cao, W.T. Ng and O. Trescases, "Thermal management for multi-phase current mode buck converters," IEEE Applied Power Electronics Conference and Exposition (APEC), Forth Worth, USA, 2011, pp. 1124-1129. (download)
  16. S. Poshtkouhi and O. Trescases, “Digital closed-loop EMI reduction in siwtched-mode power supplies using adaptive spread spectrum technique.” in Proc. IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), USA, 2010. (download)
  17. Y. Wen and O. Trescases, “Closed-loop control of gate-charge recycling in a 20 MHz DC-DC converter.” in Proc. IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), USA, 2010, pp. 1-7. (download)
  18. B. Tsai, O. Trescases and B. Francis, “An investigation of steady-state averaging for the single-inductor dual-output buck converter using Fourier analysis.” in Proc. IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), USA, 2010, pp. 1-5. (download)
  19. Y. Wen and O. Trescases, "Non-linear control of current-mode buck converter with an optimally scaled auxiliary phase," in Proc. IEEE International Conference on Industrial Technology (ICIT), Chile, 2010, pp. 783-788. (download)
  20. S. Poshtkouhi, J. Varley, R. Popuri and O. Trescases, "Analysis of distributed peak power tracking in photovoltaic systems," in Proc. IEEE International Power Electronics Conference (IPEC), Japan, 2010, pp. 942-947. (download)
  21. A. Yoo, M. Chang, O. Trescases and W.T. Ng, “High-performance low-voltage power MOSFETs with hybrid waffle layout structure in a 0.25 um standard CMOS process,” in IEEE Proc. International Symposium on Power Semiconductors and ICs (ISPSD), Orlando, USA, 2008 pp. 95-98. (download)
  22. O. Trescases, N. Rahman, A. Prodic, W.T. Ng, “A 1V buck converter IC with hybrid current-mode control and a charge-pump DAC,” in Proc. IEEE Power Electronics Specialists Conference (PESC), Rhodos, Greece, 2008, pp. 1122-1129. (download)
  23. W.T. Ng, O. Trescases and G. Wei, “Output stages for integrated DC-DC converters and power ICs,” in Proc. IEEE Electron Devices and Solid-State Circuits (EDSSC), 2007, pp. 91-94. (download)
  24. O. Trescases, A. Parayandeh, A. Prodic, W.T. Ng, “Sensorless digital peak current controller for low-power dc-dc smps based on a bi-directional delay line,” in Proc. IEEE Power Electronics Specialists Conference (PESC), Orlando, Florida, 2007, pp. 1670-1676. (download)
  25. O. Trescases, G. Wei, A. Prodic, W. T. Ng, K. Takasuka, T. Sugimoto and H. Nishio, “A digital predictive on-line energy optimization scheme for DC-DC converters,” in Proc. IEEE Applied Power Electronics Conference and Exposition (APEC), Anaheim, USA, 2007, pp. 557-562. (download)
  26. A. Yoo, M. Chang, O. Trescases, H. Wang, W.T. Ng, "FOM (Figure of Merit) analysis for low voltage power MOSFETs in DC-DC converters," in Proc. IEEE Conference on Electron Devices and Solid-State Circuits (EDSSC), pp. 1039-1042, 2008. (download)
  27. H. Wang, O. Trescases, H.P.E. Xu, W.T. Ng, K. Fukumoto, A. Ishikawa, Y. Furukawa, H. Imai, T. Naito, N. Sato, K. Sakai, S. Tamura, K. Takasuka, "A 70 V UMOS Technology with trenched LOCOS process to reduce Cgs," in Proc. IEEE International Symposium on Power Semiconductors and ICs (ISPSD), pp. 181-184, 2007. (download)
  28. H. Xu, O. Trescases, I-S. M. Sun, D. Lee, W. T. Ng, K. Fukumoto, A. Ishikawa, Y. Furukawa, H. Imai, T. Naito, N. Satio, K. Sakai, S. Tamura, K. Takasuka and T. Kohno, “Design of a rugged 60V VDMOS transistor,” in Proc. IEEE International Seminar on Power Semiconductors (ISPS), Prague, Czech Republic, 2006, pp. 253-257. (download)
  29. O. Trescases, G. Wei and W.T. Ng, “A Low-power dc-dc converter with digital spread spectrum for reduced EMI,” in Proc. IEEE Power Electronics Specialists Conference (PESC), Jeju, Korea, 2006, pp. 3108-3114. (download)
  30. O. Trescases, W.T. Ng, Nishio, H., Masaharum E. and Kawashima, T., “A digitally controlled dc-dc converter module with a segmented output stage for optimized efficiency,” in Proc. IEEE International Symposium on Power Semiconductors and ICs (ISPSD), Naples, Italy, 2006, pp. 409-413. (download)
  31. O. Trescases, Z. Lukic, W.T. Ng and A. Prodic, “A low-power mixed-signal current-mode dc-dc converter using a one-bit delta-sigma DAC,” in Proc. IEEE Applied Power Electronics Conference (APEC), Dallas, USA, 2006. (download)
  32. T. Armstrong, O. Trescases, C. Amza and E. de Lara, “Efficient and transparent dynamic content updates for mobile clients,” in Proc. International conference on mobile systems, applications, and services (MOBISYS), 2006. (download)
  33. O. Trescases, G. Wei and W.T. Ng, “Segmented digital pulse width modulator with self-calibration for low-power SMPS,” in Proc. IEEE Conference on Electron Devices and Solid-State Circuits (EDSSC), Hong Kong, China, 2005, pp. 367-37. (download)
  34. G. Wei, O. Trescases and W.T. Ng, “A dynamic voltage scaling controller for maximum energy saving across full range of load conditions,” in Proc. IEEE Conference on Electron Devices and Solid-State Circuits (EDSSC), Hong Kong, China, 2005, pp. 371-37. (download)
  35. O. Trescases, and W.T. Ng, “Variable output, soft-switching dc/dc Converter for VLSI Dynamic Voltage Scaling Power Supply Applications,” in Proc. IEEE Power Electronics Specialists Conference (PESC), Aachen, Germany, 2004, pp. 4149-4155. (download)
  36. O. Trescases, W.T. Ng, “Power management for modern VLSI loads using dynamic voltage scaling,” in Proc. IEEE International Conference on Solid-State and Integrated Circuits Technology, Beijing, China, 2004, pp. 1412-1415. (download)
  37. O. Trescases, W.T. Ng and S. Chen, “Precision gate drive timing in a zero-voltage-switching DC-DC converter,” in Proc. IEEE International Symposium on Power Semiconductors and ICs (ISPSD), Kitakyushu, Japan, 2004, pp. 55-58. (download)
  38. S. Chen, O. Trescases, and W.T Ng, “Fast Dead-Time Locked Loops for a High-Efficiency Microprocessor-Load ZVS-QSW DC/DC Converter,” in Proc. IEEE Conference on Electron Devices and Solid-State Circuits (EDSSC), Hong Kong, China, 2003, pp. 391-394. (download)

Magazine Articles



  1. O. Trescases, S. Olough’lin and W. T. Ng, “Smart Motor Controller for an E-bike Application,” IEEE Canadian Review. No. 43: pp. 17-19, 2002 (download).


Book Contributions



  1. A. Sedra, K.C. Smith. Microelectronic Circuits, 5th Edition – SPICE Examples. Textbook examples and CD supplement. Oxford Press, 2003.


Theses



  1. O. Trescases, “Smart motor controller for an e-bike application” B.A.Sc. thesis, University of Toronto, pp. 2002.
  2. O. Trescases, “A high-frequency, soft-switching dc-dc converter for dynamic voltage scaling in VLSI loads,” M.A.Sc. Thesis, University of Toronto Press, pp. 1-128, 2004.
  3. O. Trescases, “Integrated power supplies for portable applications,” Ph.D. Thesis, University of Toronto Press, pp. 1-235, 2007.

Patents:


  1. O. Trescases, W.T. Ng, “Circuit and method for reducing electromagnetic interference”, U.S Patent # 7342528 B2, filed June 2006, issued March 2008. (download)
  2. O. Trescases, D. Bernardon, “Diode loss detection for low side MOSFET of a synchronous ouput stage”, U.S Patent #7969694, filed Aug. 8 2008, issued Jun 2011 (download).
  3. O. Trescases, “Analog to digital converter architecture”, U.S Patent # 776124 B2, filed Dec. 2, 2008, issued July 20, 2010. (download)