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[1]
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Yaoran Fang, Jialong Qu, Bryan Man Hay Pong, Chi Kwan Lee, Ron Shu Yuen Hui, “Quasistatic Modeling and Optimization of Two-Layer PCB Resonators in Wireless Power Transfer Systems for 110 kV Power Grid Online Monitoring Equipment”, IEEE Transactions on Industrial Electronics, Feb 2022, Volume: 69, Issue: 2, Page(s): 1400-1410, Print ISSN: 0278-0046, Online ISSN: 1557-9948 Digital Object Identifier: 10.1109/TIE.2021.3060659
為了延伸無線電能傳輸的距離，本項目採用了諧振片的技術，將本來在100mm以下的傳輸距離, 經過數片中間諧振片延伸到1000mm 以上。 本研究項目採用了特別的優化方法, 把效率提升了四倍以上。 這技術應用在高壓電塔, 可以從輸電線透過絕緣子內藏諧振片獲取電能, 以供應電塔安裝在偏遠地方的監察儀器所用，並符合高壓絕緣的要求。
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[2]
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Kwun Yuan Godwin Ho ; Yaoran Fang ; Bryan M. H. Pong, “A Multiphysics Design and Optimization Method for Air-Core Planar Transformers in High-Frequency LLC Resonant Converters” IEEE Transactions on Industrial Electronics, Feb 2020, Vol 67, Issue 2, pp 1605-1614, DOI : 10.1109/TIE.2019.2910023
在薄膜上印刷線圈並組合成變壓器是十分吸引, 可把變壓器的厚度降到1mm以下. 配合無鐵芯設計整個變壓器並可以屈曲. 但有關設計必須精準, 既要配合高頻, 又要保持效率. 本研究項目探討合物理優化方法, 使變壓器既能適應LLC電路參數要求, 又可直接穫取實際佈線方案.
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[3]
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Yaoran Fang ; Bryan M.H. Pong ; Ron Hui, “An Enhanced Multiple Harmonics Analysis Method for Wireless Power Transfer Systems”, IEEE Transactions on Power Electronics, (Early Access Jun 2019) Issue Date: Feb 2020, Volume: 35, Issue:2, Page(s): 1205-1216, Print ISSN: 0885-8993, Online ISSN: 1941-0107, DOI: 10.1109/TPEL.2019.2925050
為了簡化無線電能傳輸(WPT)的諧振電路設計，一般都是採用第一諧波分析方法（FHA）。 但當占空比（duty cycle）不是50%比50%的時候, 這個簡單的方法出現明顯的誤差。 這項研究目提出了新的多諧波分析方法（MHA）, 能夠準確計算出諧振點與及軟開關的領域, 並發展了有關設計軟件方便使用。
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[4]
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Yaoran Fang ; Bryan M.H. Pong ; Ron Hui, “An Enhanced Multiple Harmonics Analysis Method for Wireless Power Transfer Systems”, IEEE Transactions on Power Electronics, (Early Access Jun 2019) Issue Date: Feb 2020, Volume: 35, Issue:2, Page(s): 1205-1216, Print ISSN: 0885-8993, Online ISSN: 1941-0107, DOI: 10.1109/TPEL.2019.2925050 |
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[5]
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Integrated Resonant Capacitance for LLC power converter planar transformer
LLC電源變換器是常用的電路，因為效率高，在計算機電源應用尤為普遍。但是其中的變壓器需要有準確的漏感，亦要配合外置諧振電容， 一般的繞線變壓器難免一致性不高，以致電源品質參差。 本研究項目提出融合式電容概念，採用扁平變壓器, 利用印刷線路層與層之間的電容作為諧振電容。 不單可以提高變壓器參數的一致性, 亦可減免外置諧振電容, 適合薄身的數據中心計算機插板電源使用。
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[6]
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Kwun Yuan Godwin Ho ; Bryan M.H. Pong, “Multilayer Flexible Printed Circuitry Planar Transformer with Integrated Series Capacitance for LLC Converter”, IEEE Transactions on Power Electronics, Nov 2019 , Vol 34, Issue 1111139-11152, ISSN: 0885-8993 Online ISSN: 1941-0107 DOI: 10.1109/TPEL.2019.2896909 |
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[7]
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Yaoran Fang, Bryan M.H. Pong, “Multiple Harmonics Analysis for Variable Frequency Asymmetrical Pulsewidth-Modulated Wireless Power Transfer Systems”, IEEE Trans on Industrial Electronics, May 2019, Vol : 66, Issue 5, pp 4023-4030. |
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[8]
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Chi Kwan Lee, Danting Xu, Bryan M.H. Pong, Sitthisak Kiratipongvoot and Wai Man Ng “A Three-winding Common Mode Inductor”, IEEE Trans on Power Electronics, Year: July 2017, Volume: 32, Issue: 7, Pages: 5180 – 5187 |
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[9]
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Godwin Kwun Yuan Ho, Cheng Zhang, Bryan M.H. Pong and Ron S.Y. Hui “Modeling and Analysis of the Bendable Transformer”, IEEE Trans on Power Electronics. September, 2016, Vol. 31, Issue 9, pp.6450-6460.
一般的電源都是硬方塊。如果電源可被屈曲，就可創出新的用途，例如電源可以依附在管狀物體， 或者作為穿戴式產品使用。為了達到這個目的，本研究項目利用GaN器件高頻運作把電源變壓器鐵芯替換成空氣芯，線圈印刷在薄膜上。 此外為了應付屈曲後的參數變化 , 提出了可以改變形狀的三維變壓器模型。 實驗做出的電源效果理想，可供一般USB產品 使用。
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[10]
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Y. P. Chan, N. K. Poon, C. P. Liu, M. H. Pong, “Common-Mode Noise Cancellation by an Antiphase Winding in Multilayer Isolated Planar Transformer”, IEEE Trans. Electromagnetic Compatibility, Vol. 56, No.1, February 2014 pages 67 to 73. |
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[11]
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Hon Man Pang, Bryan Man Hay Pong, “Design Oriented Model and Critical Inductance Method for long life isolated power converters”, IET Power Electronics, Nov 2013, Vol.6, Iss 9, pp.1862-1871 |
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[12]
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Yu, R. ; Ho, G. K. Y. ; Pong, B. M. H. ; Ling, B. W.-K. ; Lam, J. ;“Computer Aided Design and Optimization of High Efficiency LLC Resonant Converter” IEEE Transactions on Power Electronics, Volume : 27, PP 3243-3256 , Issue: 7 ISSN : 0885-8993, 2012 Date of Publication : July 2012 |
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[13]
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Y. P. Chan, M. H. Pong, N. K. Poon, C. P. Liu “Common Mode Noise Cancellation in Switching Mode Power Supplies using an Equipotential Transformer Modeling Technique”, IEEE Trans. Electromagnetic Compatibility, Volume 54, Issue 3, June 2012 pages 594 - 602. |
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[14]
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Yu, R. ; Pong, B. ; Ling, B. ; Lam, J. ;” Two-stage Optimization Method for Efficient Power Converter Design Including Light Load Operation” IEEE Transactions on Power Electronics, Volume : 27, PP 1327-1337 , Issue:3 Date of Publication : 14 February 2011. |
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[15]
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J.C.P. Liu, C.K. Tse, N.K. Poon, M.H. Pong, Y.M. Lai “Synthesis of general impedance with simple dc/dc converters for power processing applications” International Journal of Circuit Theory and Applications, May 2008; 36:275-287 |
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[16]
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Liu, J. C. P.; Poon, N. K.; Pong, B. M. H.; Tse, C. K.; “Low Output Ripple DC–DC Converter Based on an Overlapping Dual Asymmetric Half-Bridge Topology” IEEE Transactions on Power Electronics, Volume 22, Issue 5, Sept. 2007 Page(s):1956 – 1963 |
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[17]
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A Single Phase Voltage Regulator Module (VRM) with Stepping Inductance
VRM 是DC/DC電源，普遍應用在需要快速瞬間負載轉變的計算機CPU負載。一般的VRM是採用數個buck 轉換器並聯在一起。 本研究項目提出一個單相VRM快速電源, 其特別之處在於輸出電感耦合到輸入電源， 在快速瞬間轉換時提供嵌位電源， 以達致快速反應的效果。
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[18]
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Dylan D.C. Lu, Joe C.P. Liu, Franki N.K. Poon, Bryan M.H. Pong 'A Single Phase Voltage Regulator Module (VRM) with Stepping Inductance for Fast Transient Response,' IEEE Transaction on Power Electronics, March 2007, Vol 22, No. 2 pp.417-424. |
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[19]
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C.P. Liu, C.K.Tse, N.K. Poon, B.M.H. Pong, Y.M. Lai “A PFC Voltage Regulator with Low Input Current Distortion Derived from a Rectifierless Topology”, IEEE Transaction on Power Electronics, July 2006, Vol 21, No. 4 pp.906-911. |
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[20]
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C.P. Liu, C.K.Tse, N.K. Poon, B.M.H. Pong, Y.M. Lai “Synthesis of Input-Rectifierless AC/DC Converters”, IEEE Transaction on Power Electronics, Jan 2004, Vol 19, No. 1 pp.176-182. |
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[21]
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N.K. Poon, B.M.H. Pong, C.K.Tse “A Constant-Power Battery Charger with Inherent Soft Switching and Power Factor Correction”, IEEE Transaction on Power Electronics, Nov 2003, Vol 18, No. 6 pp.1262-1269. |
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[22]
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N.K. Poon, M.H. Pong, C.P. Liu, C.K. Tse, “Essential-Coupling-Path Models for Non-Contact EMI in Switching Power Converters Using Lumped Circuit Elements” IEEE Trans. on Power Electronics, Vol. 18, March 2003, p.686-695. |
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[23]
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Xuefei Xie, Joe Chui Pong Liu, Franki Ngai Kit Poon, M. H. Pong "A Novel High Frequency Current-Driven Synchronous Rectifier Applicable To Most Switching Topologies", IEEE Transactions on Power Electronics, Vol. 16, Issue 5, September 2001, pp.635-648. |
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[24]
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M.H.Pong, X. Wu, C.M.Lee, Z.M.Qian, " Reduction of Crosstalk on Printed Circuit Board using Genetic Algorithm in Switching Power Supply" Letter to the editor, IEEE Transactions on Industrial Electronics, Vol 48, No.1, February 2001, p.235-238. |
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[25]
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N.K. Poon, J.C.P. Liu, C.K. Tse, M.H.Pong, "Techniques for Input Ripple Current Cancellation : Classification and Implementation", IEEE Trans on Power Electronics, Vol. 15, No.6, November 2000, pp.1144-1152. |
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[26]
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M.H.Pong, W.C. Ho, N.K. Poon , "A Soft Switching Converter with Power Limiting Feature” IEE Proceedings - Electric Power Applications, January 1999, Vol.146, No.1, p.95-p.102. |
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[27]
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M.H. Pong, R.D. Jackson "Computer-aided design of power transistor inverter snubber circuits", IEE Proceedings. Vol. 134, Pt B, No.2, March 1987, pp.69-78. |
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[28]
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M.H. Pong, R.D. Jackson "Computer-aided design of power electronic circuits", IEE Proceedings, Vol. 132, Pt B, No.6, Nov 1985, pp.301-306. |
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[29]
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J.Allan, B. Mellitt, M.H. Pong "Rheostatic stabilisation of a chopper controlled brake for traction drives", IEE Proceedings, Vol. 131, Pt. B, No.5, Sept.,1984, pp.190-194. |
