Henry S. H. Chung

Henry S. H. Chung received his B.E. degree in electrical engineering from The Hong Kong Polytechnic University in 1991, and the Ph.D. degree in 1994. Since 1995, he has been at the City University of Hong Kong (CityU). He is currently a Professor at the Department of Electronic Engineering and Chief Technical Officer of e.Energy Technology Limited. His research interests include time- and frequency-domain analysis of power electronic circuits, switched-capacitor-based converters, random-switching techniques, control methods, digital audio amplifiers, soft-switching converters, and electronic ballast design. He has authored six research book chapters, and over 250 technical papers including 100 refereed journal papers in his research areas. He holds 10 patents, and was awarded the Grand Applied Research Excellence Award in 2001 from the City University of Hong Kong. Dr. Chung was an IEEE Student Branch Counselor and was a Track Chair of the Technical Committee on Power Electronics Circuits and Power Systems of IEEE Circuits and Systems Society in 1997–1998. He was an Associate Editor and Guest Editor of the IEEE Transactions on Circuits and Systems. Chung is currently an Associate Editor of the IEEE Transactions on Power Electronics.

Biography Updated on 20 April 2008

Personal Home Page

http://www.ee.cityu.edu.hk/~shc

Articles in Scholarly Journals [Incomplete List]

  1. Clustering-Based Adaptive Crossover and Mutation Probabilities for Genetic Algorithms
    IEEE Transactions on Evolutionary Computation, vol. 11, no. 3, pp. 326–335, 2007
  2. Comments on “Unified Analysis of Switched-Capacitor Resonant Converters”
    IEEE Transactions on Industrial Electronics, vol. 54, no. 1, pp. 684–685, 2007
  3. Comparison of Dimmable Electromagnetic and Electronic Ballast Systems—An Assessment on Energy Efficiency and Lifetime
    IEEE Transactions on Industrial Electronics, vol. 54, no. 6, pp. 3145–3154, 2007
  4. Design and Implementation of Dimmable Electronic Ballast Based on Integrated Inductor
    IEEE Transactions on Power Electronics, vol. 22, no. 1, pp. 291–300, 2007
  5. An Active Modulation Technique for Single-Phase Grid-Connected CSI
    IEEE Transactions on Power Electronics, vol. 22, no. 4, pp. 1373–1382, 2007
  6. A Comparative Study of Boundary Control With First- and Second-Order Switching Surfaces for Buck Converters Operating in DCM
    IEEE Transactions on Power Electronics, vol. 22, no. 4, pp. 1196–1209, 2007
  7. High-Order Switching Surface in Boundary Control of Inverters
    IEEE Transactions on Power Electronics, vol. 22, no. 5, pp. 1753–1765, 2007
  8. A High-Voltage DC–DC Converter With Vin/3—Voltage Stress on the Primary Switches
    IEEE Transactions on Power Electronics, vol. 22, no. 6, pp. 2124–2137, 2007
  9. Practical Evaluation of Dimming Control Methods for Electronic Ballasts
    IEEE Transactions on Power Electronics, vol. 21, no. 6, pp. 1769–1775, 2006
  10. Comments on "Design and analysis of switched-capacitor-based step-up resonant Converters"
    IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 53, no. 6, p. 1403, 2006
  11. Dynamic hysteresis band control of the buck converter with fast transient response
    IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 52, no. 7, pp. 398–402, 2005
  12. A Lamp Power Control Scheme for Dimmable Electronic Ballasts to Minimize the Temperature Effect on the Lamp Brightness
    IEEE Power Electronics Letters, vol. 3, no. 1, pp. 34–39, 2005
  13. An Integrated Inverter With Maximum Power Tracking for Grid-Connected PV Systems
    IEEE Transactions on Power Electronics, vol. 20, no. 4, pp. 953–962, 2005
  14. Parameter Monitoring of High-Frequency Electronically Operated Discharge Lamp Systems
    IEEE Transactions on Power Electronics, vol. 20, no. 4, pp. 948–952, 2005
  15. TRIAC Dimmable Ballast With Power Equalization
    IEEE Transactions on Power Electronics, vol. 20, no. 6, pp. 1441–1449, 2005
  16. Design and Analysis of an IC-Less Self-Oscillating Series Resonant Inverter for Dimmable Electronic Ballasts
    IEEE Transactions on Power Electronics, vol. 20, no. 6, pp. 1450–1458, 2005
  17. Journal of Circuits, Systems, and Computers, vol. 13, no. 4, p. 687, 2004
  18. Compact Analytical Solutions for Determining the Spectral Characteristics of Multicarrier-Based Multilevel PWM
    IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 51, no. 8, pp. 1577–1585, 2004
  19. A Comparative Study of Maximum-Power-Point Trackers for Photovoltaic Panels Using Switching-Frequency Modulation Scheme
    IEEE Transactions on Industrial Electronics, vol. 51, no. 2, pp. 410–418, 2004
  20. A Novel Electrode Power Profiler for Dimmable Ballasts Using DC Link Voltage and Switching Frequency Controls
    IEEE Transactions on Power Electronics, vol. 19, no. 3, pp. 847–853, 2004
  21. Dimming Control and Characteristics of High-Frequency Operated Metal Halide Lamps
    IEEE Transactions on Power Electronics, vol. 19, no. 3, pp. 854–861, 2004
  22. Use of Saturable Inductor to Improve the Dimming Characteristics of Frequency-Controlled Dimmable Electronic Ballasts
    IEEE Transactions on Power Electronics, vol. 19, no. 6, pp. 1653–1660, 2004
  23. A ZCS Bidirectional Flyback DC/DC Converter
    IEEE Transactions on Power Electronics, vol. 19, no. 6, pp. 1426–1434, 2004
  24. Use of System Oscillation to Locate the MPP of PV Panels
    IEEE Power Electronics Letters, vol. 2, no. 1, pp. 1–5, 2004
  25. Derivation of a Second-Order Switching Surface in the Boundary Control of Buck Converters
    IEEE Power Electronics Letters, vol. 2, no. 2, pp. 63–67, 2004
  26. Self-Oscillating Dimmable Electronic Ballast for Fluorescent Lamps
    IEEE Power Electronics Letters, vol. 2, no. 3, pp. 87–91, 2004
  27. Generalized structure of Bi-directional switched-capacitor DC/DC converters
    IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, vol. 50, no. 6, pp. 743–753, 2003
  28. Guest editorial
    IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, vol. 50, no. 8, pp. 973–974, 2003
  29. Nonlinear high-intensity discharge lamp model including a dynamic electrode voltage drop
    IEE Proceedings - Science, Measurement and Technology, vol. 150, no. 4, p. 161, 2003
  30. A novel maximum power point tracking technique for solar panels using a SEPIC or cuk converter
    IEEE Transactions on Power Electronics, vol. 18, no. 3, pp. 717–724, 2003
  31. On the use of current sensors for the control of power converters
    IEEE Transactions on Power Electronics, vol. 18, no. 4, pp. 1047–1055, 2003
  32. Circuit-level comparison of statcom technologies
    IEEE Transactions on Power Electronics, vol. 18, no. 4, pp. 1084–1092, 2003
  33. A novel voltage sensorless control technique for a bidirectional ac/dc converter
    IEEE Transactions on Power Electronics, vol. 18, no. 6, pp. 1346–1355, 2003
  34. An evaluation of the spectral characteristics of switching converters with chaotic carrier-frequency modulation
    IEEE Transactions on Industrial Electronics, vol. 50, no. 1, pp. 171–182, 2003
  35. An electrode power control scheme for dimmable electronic ballasts
    IEEE Transactions on Industrial Electronics, vol. 50, no. 6, pp. 1335–1337, 2003
  36. Triangular-shaped bulk-optic glass sensor for simultaneous measurement of three ac currents
    Optical Engineering, vol. 42, no. 2, p. 421, 2003
  37. A 31-level cascade inverter for power applications
    IEEE Transactions on Industrial Electronics, vol. 49, no. 3, pp. 613–617, 2002
  38. A comparative study of carrier-frequency modulation techniques for conducted EMI suppression in PWM converters
    IEEE Transactions on Industrial Electronics, vol. 49, no. 3, pp. 618–627, 2002
  39. Single current sensor control for single-phase active power factor correction
    IEEE Transactions on Power Electronics, vol. 17, no. 5, pp. 623–632, 2002
  40. Evaluation of the shielding effects on printed-circuit-board transformers using ferrite plates and copper sheets
    IEEE Transactions on Power Electronics, vol. 17, no. 6, pp. 1080–1088, 2002
  41. A novel maximum power point tracker for PV panels using switching frequency modulation
    IEEE Transactions on Power Electronics, vol. 17, no. 6, pp. 980–989, 2002
  42. Genetic algorithm optimised high-intensity-discharge lamp model
    Electronics Letters, vol. 38, no. 3, p. 110, 2002
  43. Lamp arc resistance modelling of high-intensity-discharge (HID) lamps
    IEE Proceedings - Science, Measurement and Technology, vol. 149, no. 1, p. 45, 2002
  44. A randomized voltage vector switching scheme for three-level power inverters
    IEEE Transactions on Power Electronics, vol. 17, no. 1, pp. 94–100, 2002
  45. A low-profile low-power converter with coreless PCB isolation transformer
    IEEE Transactions on Power Electronics, vol. 16, no. 3, pp. 311–315, 2001
  46. An electronic ballast with wide dimming range, high PF, and low EMI
    IEEE Transactions on Power Electronics, vol. 16, no. 4, pp. 465–472, 2001
  47. A low-profile power converter using printed-circuit board (PCB) power transformer with ferrite polymer composite
    IEEE Transactions on Power Electronics, vol. 16, no. 4, pp. 493–498, 2001
  48. Implementation of a decoupled optimization technique for design of switching regulators using genetic algorithms
    IEEE Transactions on Power Electronics, vol. 16, no. 6, pp. 752–763, 2001
  49. A comparative study on dimming control methods for electronic ballasts
    IEEE Transactions on Power Electronics, vol. 16, no. 6, pp. 828–836, 2001
  50. Analysis and spectral characteristics of a spread-spectrum technique for conducted EMI suppression
    IEEE Transactions on Power Electronics, vol. 15, no. 2, pp. 399–410, 2000
  51. Some electromagnetic aspects of coreless PCB transformers
    IEEE Transactions on Power Electronics, vol. 15, no. 4, pp. 805–810, 2000
  52. Coreless planar printed-circuit-board (PCB) transformers-a fundamental concept for signal and energy transfer
    IEEE Transactions on Power Electronics, vol. 15, no. 5, pp. 931–941, 2000
  53. A bidirectional AC-DC power converter with power factor correction
    IEEE Transactions on Power Electronics, vol. 15, no. 5, pp. 942–948, 2000
  54. Characterization of coreless printed circuit board (PCB) transformers
    IEEE Transactions on Power Electronics, vol. 15, no. 6, pp. 1275–1282, 2000
  55. Coreless printed circuit board (PCB) transformers with high power density and high efficiency
    Electronics Letters, vol. 36, no. 11, p. 943, 2000
  56. New design of optical electric-current sensor for sensitivity improvement
    IEEE Transactions on Instrumentation and Measurement, vol. 49, no. 2, pp. 418–423, 2000
  57. A systematic graphing technique for small-signal low-frequency characterization of PWM DC/DC converters
    IEEE Transactions on Industrial Electronics, vol. 47, no. 1, pp. 45–54, 2000
  58. On the use of current control scheme for switched-capacitor DC/DC converters
    IEEE Transactions on Industrial Electronics, vol. 47, no. 2, pp. 238–244, 2000
  59. A comparative investigation on the use of random modulation schemes for DC/DC converters
    IEEE Transactions on Industrial Electronics, vol. 47, no. 2, pp. 253–263, 2000
  60. Spectral characteristics of randomly switched PWM DC/DC converters operating in discontinuous conduction mode
    IEEE Transactions on Industrial Electronics, vol. 47, no. 4, pp. 759–769, 2000
  61. Realization of digital audio amplifier using zero-voltage-switched PWM power converter
    IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, vol. 47, no. 3, pp. 303–311, 2000
  62. Harmonic analysis of nondeterministic switching methods for DC-DC power converters
    IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, vol. 47, no. 6, pp. 868–884, 2000
  63. Development of a multistage current-controlled switched-capacitor step-down DC/DC converter with continuous input current
    IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, vol. 47, no. 7, pp. 1017–1025, 2000
  64. Describing functions of power electronics circuits using progressive analysis of circuit waveforms
    IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, vol. 47, no. 7, pp. 1026–1037, 2000
  65. Development of a switched-capacitor DC-DC converter with bidirectional power flow
    IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, vol. 47, no. 9, pp. 1383–1389, 2000
  66. Computation of the cycle state-variable sensitivity matrix of PWM DC/DC converters and its applications
    IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, vol. 47, no. 10, pp. 1542–1548, 2000
  67. Dual-loop iteration algorithm for steady-state determination of current-programmed dc/dc switching converters
    IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, vol. 46, no. 4, pp. 521–526, 1999
  68. Design and analysis of a switched-capacitor-based step-up DC/DC converter with continuous input current
    IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, vol. 46, no. 6, pp. 722–730, 1999
  69. Time-domain simulation of power electronics circuits using state variable quadratic extrapolations
    IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, vol. 46, no. 6, pp. 751–756, 1999
  70. Development of a switched-capacitor DC/DC boost converter with continuous input current waveform
    IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, vol. 46, no. 6, pp. 756–759, 1999
  71. Modular single-stage, three-phase full-bridge converter with inherent power factor correction and isolated output
    IEE Proceedings - Electric Power Applications, vol. 146, no. 4, p. 407, 1999
  72. Paralleling power converters for AC–DC step-down power conversion with inherent power factor correction
    IEE Proceedings - Electric Power Applications, vol. 146, no. 2, p. 247, 1999
  73. Stepwise quadratic state-space modeling technique for simulation of power electronics circuits
    IEEE Transactions on Industrial Electronics, vol. 46, no. 1, pp. 91–99, 1999
  74. A zero-current-switching PWM flyback converter with a simple auxiliary switch
    IEEE Transactions on Power Electronics, vol. 14, no. 2, pp. 329–342, 1999
  75. Coreless printed circuit board (PCB) transformers for power MOSFET/IGBT gate drive circuits
    IEEE Transactions on Power Electronics, vol. 14, no. 3, pp. 422–430, 1999
  76. Coreless printed circuit board (PCB) transformers with multiple secondary windings for complementary gate drive circuits
    IEEE Transactions on Power Electronics, vol. 14, no. 3, pp. 431–437, 1999
  77. Optimal operation of coreless PCB transformer-isolated gate drive circuits with wide switching frequency range
    IEEE Transactions on Power Electronics, vol. 14, no. 3, pp. 506–514, 1999
  78. Quadratic state-space modeling technique for analysis and simulation of power electronic converters
    IEEE Transactions on Power Electronics, vol. 14, no. 6, pp. 1086–1100, 1999
  79. Decoupled technique for the simulation of PWM switching regulators using second-order-output extrapolations
    IEEE Transactions on Power Electronics, vol. 13, no. 2, pp. 222–234, 1998
  80. A comparison of nondeterministic and deterministic switching methods for DC-DC power converters
    IEEE Transactions on Power Electronics, vol. 13, no. 6, pp. 1046–1055, 1998
  81. Coreless printed-circuit board transformers for signal and energy transfer
    Electronics Letters, vol. 34, no. 11, p. 1052, 1998
  82. Steady-state analysis of PWM DC/DC switching regulators using iterative cycle time-domain simulation
    IEEE Transactions on Industrial Electronics, vol. 45, no. 3, pp. 421–432, 1998
  83. An isolated ZVS/ZCS flyback converter using the leakage inductance of the coupled inductor
    IEEE Transactions on Industrial Electronics, vol. 45, no. 4, pp. 679–682, 1998
  84. Reduction of power converter EMI emission using soft-switching technique
    IEEE Transactions on Electromagnetic Compatibility, vol. 40, no. 3, pp. 282–287, 1998
  85. An efficient technique for the time-domain simulation of power electronic circuits
    IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, vol. 45, no. 4, pp. 364–376, 1998
  86. Computer-aided analysis of power electronic circuits by stepwise topological identification
    International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, vol. 10, no. 5, pp. 285–301, 1997
  87. Effects of continuous noise in randomised switching DC-DC converters
    Electronics Letters, vol. 33, no. 11, p. 919, 1997
  88. Parallellism of power converters for automatic power factor correction
    Electronics Letters, vol. 33, no. 15, p. 1274, 1997
  89. Reduction of EMI emission from power converter using soft-switching techniques
    Electronics Letters, vol. 32, no. 11, p. 977, 1996
  90. Fast computer-aided simulation of switching power regulators based on progressive analysis of the switches' state
    IEEE Transactions on Power Electronics, vol. 9, no. 2, pp. 206–212, 1994