Electric lamp and discharge devices: systems – Current and/or voltage regulation
Reexamination Certificate
2007-11-13
2007-11-13
Philogene, Haissa (Department: 2821)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
C315S194000, C315S224000, C315S276000, C315S2090SC, C315S307000, C315SDIG002
Reexamination Certificate
active
11060237
ABSTRACT:
A method of driving a lamp that uses a DC to AC inverter that is connected to a primary winding of a transformer is disclosed. The inverter frequency is variable, and in one embodiment, may be controlled by a voltage controlled oscillator. Circuitry is included that monitors the phase relationship between a voltage across a secondary of the transformer and a current through the primary of the transformer. The circuitry monitors the phase relationship and adjusts the inverter frequency, such as by adjusting voltage controlled oscillator, so that the phase relationship is maintained at a predetermined relationship.
REFERENCES:
patent: 4085300 (1978-04-01), MacKenzie et al.
patent: 4277728 (1981-07-01), Stevens
patent: 4504895 (1985-03-01), Steigerwald
patent: 4541041 (1985-09-01), Park et al.
patent: 4672528 (1987-06-01), Park et al.
patent: 4727469 (1988-02-01), Kammiller
patent: 4794506 (1988-12-01), Hino et al.
patent: 4855888 (1989-08-01), Henze et al.
patent: 4935857 (1990-06-01), Nguyen et al.
patent: 4952849 (1990-08-01), Fellows
patent: 4988920 (1991-01-01), Hoeksma
patent: 4992919 (1991-02-01), Lee et al.
patent: 5105127 (1992-04-01), Lavaud et al.
patent: 5130611 (1992-07-01), Johns
patent: 5157592 (1992-10-01), Walters
patent: 5166579 (1992-11-01), Kawabata et al.
patent: 5270620 (1993-12-01), Basch et al.
patent: 5285372 (1994-02-01), Huynh et al.
patent: 5311104 (1994-05-01), Antle
patent: 5315498 (1994-05-01), Berrios et al.
patent: 5363020 (1994-11-01), Chen et al.
patent: 5384516 (1995-01-01), Kawabata et al.
patent: 5402043 (1995-03-01), Nilssen
patent: 5416387 (1995-05-01), Cuk et al.
patent: 5422546 (1995-06-01), Nilssen
patent: 5438242 (1995-08-01), Simpson
patent: 5438497 (1995-08-01), Jain
patent: 5438498 (1995-08-01), Ingemi
patent: 5442540 (1995-08-01), Hua et al.
patent: 5477131 (1995-12-01), Gegner
patent: 5481160 (1996-01-01), Nilssen
patent: 5481449 (1996-01-01), Kheraluwala et al.
patent: 5550436 (1996-08-01), Houk
patent: 5583402 (1996-12-01), Moisin et al.
patent: 5604411 (1997-02-01), Venkitasubrahmanian et al.
patent: 5615093 (1997-03-01), Nalbant
patent: 5619402 (1997-04-01), Liu
patent: 5642065 (1997-06-01), Choi et al.
patent: 5677602 (1997-10-01), Paul et al.
patent: 5694007 (1997-12-01), Chen
patent: 5712533 (1998-01-01), Corti
patent: 5719474 (1998-02-01), Vitello
patent: 5744915 (1998-04-01), Nilssen
patent: 5754012 (1998-05-01), LoCascio et al.
patent: 5781418 (1998-07-01), Chang et al.
patent: 5844540 (1998-12-01), Terasaki
patent: 5875103 (1999-02-01), Bhagwat et al.
patent: 5886477 (1999-03-01), Honbo et al.
patent: 5910709 (1999-06-01), Stevanovic et al.
patent: 5923127 (1999-07-01), Keijser et al.
patent: 5923129 (1999-07-01), Henry
patent: 5930121 (1999-07-01), Henry
patent: 5932976 (1999-08-01), Maheshwari et al.
patent: 5939830 (1999-08-01), Praiswater
patent: 5940709 (1999-08-01), Chan
patent: 6002210 (1999-12-01), Nilssen
patent: 6011360 (2000-01-01), Gradzki
patent: 6016052 (2000-01-01), Vaughn
patent: 6108215 (2000-08-01), Kates
patent: 6114814 (2000-09-01), Shannon et al.
patent: 6198234 (2001-03-01), Henry
patent: 6226196 (2001-05-01), Toshinari
patent: 6316881 (2001-11-01), Shannon et al.
patent: 6348755 (2002-02-01), Shimamura
patent: 6639367 (2003-10-01), Wells
patent: 6683422 (2004-01-01), Moyer
patent: 6900599 (2005-05-01), Ribarich
patent: 1296542 (2003-03-01), None
patent: 05-100552 (1993-04-01), None
Japanese Official Action for Japanese Patent Application No. 2004-029258. Japan Patent Office. Dispatched Jul. 24, 2006. 2 pages.
Andreycak, B., “Practical Considerations in High Performance MOSFET, IGBT, and MCT Gate Drive Circuits,” Topic 6, Power Supply Design Seminar, SEM800, Unitrode Corp. (Sep. 1991).
Andreycak, Bill, Phase Shifted, Zero Voltage Transition Design Considerations and the UC3875 PWM Controller, Application Note, Unitrode Corporation, U-136A (1997).
Balogh, Laszio; The New UC3879 Phase-Shifted PWM Controller Simplifies the Design of Zero Voltage Transition Full-Bridge Converters; Unitrode Corporation, 1999.
Chen, W. et al; A Comparative Study of a Class of Full Bridge Zero-Voltage Switched PWM Converters; Virginia Polytechnic Institutes and State University; Blacksburg, Virigina, 1995.
Coaton, J.R. and A.M. Marsden, Lamps and Lighting, Joh Wiley & Sons, Inc. pp. 322-324, 1999.
Cosby, Jr., Melvin C. and R.M. Nelsm, “A Resonant Inverter for Electronic Ballast Applications,” IEEE Transactions on Industrial Electronics, vol. 41, No. 4, Aug. 1994.
Dixon, L., “Control Loop Design,” Topic 7, Power Supply Design Seminar, SEM800, Unitrode Corp. (Sep. 1991).
Farrington, Richard et al; High Density Power-Hyrbrid Design of a Half-Bridge Multi-Resonant Converter; Virginia Polytechnic Institute and State University; Blacksburg, Virginia, 1990.
Fisher, R. A. et al; A Frequency/PWM Controlled Converter With Two Independently Regulated Outputs; GE Corporate Research and Development Center; Schenectady, NY, Apr. 1989.
Graf, Rudolf F., “Modern Dictionary of Electronics,” Seventh Edition, p. 760; Newnes, 1999.
Mammano, B, and M. Jordan, “Fixed-Frequency Resonant-Switched Pulse Width Modulation with Phase-Shifted Control,” Topic 5, Power Supply Design Seminar, Unitrode Corp. (Sep. 1991).
Mammano, B, and M. Jordan, “Load Sharing with Paralleled Power Supplies,” Topic 2, Power Supply Design Seminar, SEM800, Unitrode Corp. (Sep. 1991).
Nalbant, M.K., “A New and Improved Control Technique Greatly Simplifies the Design of ZVS Resonant Inverters and Dc/DC Power Supplies,” APEC 1995 Conf. Proceedings, pp. 794-701, vol. 2, Issues 0.
Pressman, Abraham I.; Switching Power Supply Design; McGraw-Hill 1991.
Redl, R., et al., “Optimum ZVS Full-Bridge DC/DC Convert er with PWM Phase- Shift Control : Analysis , Design Considerations, and Experimental Results,” IEEE APEC, pp. 159-165, 1994.
Steigerwald, Robert L., “A Comparison of Half-Bridge Resonant Converter Topologies,” IEEE Transactions on Power Electronics, vol. 3, No. 2, Apr. 1998.
Sum, K. Kit (editior); Recent Developments in Resonant Power Conversion; Intertec Communications Press; Summit Electronics, Inc., Highland, Illinois, 1988.
Takano, H, et al. “Feasible Characteristic Evaluations of Resonant PWM Inverter-Link DC-DC High-Power Converters using High-Voltage Transformer Parasitic Components,” Proceedings of Applied Power Electronics Conference and Exposition (Dallas, TX), pp. 913-919, Mar. 1995.
Vlatkovic, V., et al., Small-Signal Analysis of the Phase-Shifted PWM Converter, IEEE Transactions on Power Electronics, vol. 7, No. 1, Jan. 1992, pp. 128-135.
Moyer James C.
Rust Timothy J.
Lu Zhou
Monolithic Power Systems, Inc.
Perkins Coie LLP
Philogene Haissa
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