Electric power conversion systems – Current conversion – With condition responsive means to control the output...
Patent
1988-02-24
1990-01-30
Wong, Peter S.
Electric power conversion systems
Current conversion
With condition responsive means to control the output...
363137, H02M 7758
Patent
active
048977756
ABSTRACT:
An improved control circuits is disclosed for use with a resonant converter having a resonant circuit and a first and a second plurality of switches for transferring electrical power between first and second terminals. The improved control circuit comprises a power transfer control or an outer control loop and a resonant circuit control or an inner control loop with the resonant circuit control having a predictor circuit. The power transfer control regulates the electrical power transferred between the first and second terminals through selective conduction of the first and second plurality of switches for selectively initiating oscillation of the resonant circuit to provide resonant pulses of the resonant circuit. A predictor circuit instantaneously monitors the operation of the resonant converter and instantaneously and continuously predicts prior to the completion of each resonant portion when the initiation of conduction of one of the switches will produce a resonant portion having a final waveform in conformity with a pre-established standard. The resonant circuit control compares an output of the predictor circuit to the pre-established standard for initiating conduction of the switches within each resonant portion to conform each resonant portion to the pre-established standard.
REFERENCES:
patent: 3678367 (1972-07-01), McMurray
patent: 3882370 (1975-05-01), McMurray
patent: 3902107 (1975-08-01), Brown
patent: 3953779 (1976-04-01), Schwarz
patent: 4024453 (1977-05-01), Corry
patent: 4096557 (1978-06-01), Schwarz
patent: 4333135 (1982-06-01), Schwarz
patent: 4355351 (1982-10-01), Schwarz
patent: 4367522 (1983-01-01), Forstbauer et al.
patent: 4409647 (1983-10-01), Terkanian
patent: 4417197 (1983-11-01), Schwarz
patent: 4424834 (1984-04-01), Baumann et al.
patent: 4495555 (1985-01-01), Eikelboom
patent: 4523269 (1985-06-01), Baker et al.
patent: 4541041 (1985-09-01), Parker et al.
patent: 4587604 (1986-05-01), Nerone
Klaassens; "DC/AC Series Resonant Converter System with High Internal Frequency Generating Multiphase AC Wave Forms for Multikilowatt Power Levels"; Jun. 1985, IEEE.
S. W. H. De Hann, A New Integral Pulse Module for the Series-Resonant Converter, IEEE Transactions on Industrial Electronics, vol. IE-31, No. 3, Aug. 1984, pp. 255-262.
J. B. Klaassens, DC to AC Series-Resonant Converter System with High Internal Frequency Generating Synthesized Waveforms for Multi-kilowatt Power Levels, IEEE Power Electronics Specialists Conference, Jun. 1984, Gaithersburg, Maryland, USA, pp. 99-110.
Schwarz, F. C., Moize de Chateleux, W. L. F. H. A., A Multikilowatt Polyphase ac/dc Converter with Reversible Power Flow and without Passive Low Frequency Filters, IEEE Power Electronics Specialists Conference, San Diego, Jun. 1979, pp. 448-458.
Schwarz, F. C., Klaassens, J. B., A Reversible Smooth Current Source with Momentary Internal Response for Nondissipative Control of Multi-Kilowatt dc Machines IEEE Transactions on Power Apparatus and Systems, Jun. 1981, vol. PAS-100, No. 6, pp. 3008-3016.
Schwarz, F. C., Klaassens, J. B., A High Frequency Four-Quadrant Multi-Kilowatt dc Machine Drive, Proceedings of the POWERCON 9, Washington D.C., Jul. 1982.
Schwarz, F. C., Engineering Information on an Analog Signal to Discrete Time Interval Converter, NASA CR-134544, Sep. 1973.
Schwarz, F. C., Klaassens, J. B., A Controllable 45-kw Current Source for dc Machines, IEEE Transactions on Industry Applications, vol. IA-15, No. 4, Jul./Aug. 1979, pp. 437-444.
Schwarz, F. C., A Doublesided Cycle-Converter, IEEE Power Electronics Specialists Converence, San Diego, Jun. 1979, pp. 437-447.
Schwarz, F. C., A Method of Resonant Current Pulse Modulation for Power Converters, IEEE Transactions on Industrial Electronics and Control Instrumentation, vol. 17, No. 3, May 1970, pp. 209-221.
Schwarz, F. C., An Improved Method of Resonant Current Pulse Modulation for Power Converters, IEEE Transactions on Industrial Electronics and Control Instrumentation, IECI-23, No. 2, Jul. 14, 1975, pp. 133-141.
Schwarz, F. C., Klaassens, J. B., A Controllable Secondary Multikilowatt dc Current Source with Constant Maximum Power Factor in its Three Phase Supply Line, IEEE Transactions on Industrial Electronics and Control Instrumentation, vol. 23, No. 2, May 1976, pp. 142-150.
R. J. King, T. A. Stuart, Inherent Overload Protection for the Series Resonant Convert, IEEE Transactions on Aerospace and Electronic Systems, vol. AES-19, No. 6, Nov. 1983, pp. 820-829.
J. B. Klaassens, DC to AC Series-Resonant Converter System with High Internal Frequency Generating Synthesized Waveforms for Multi-Kilowatt Power Levels, IEEE Power Electronics Specialists Conference, Jun. 1984, Gaithersburg, Md., USA, pp. 99-110.
Frijouf Robert F.
Sterrett Jeffrey
Wong Peter S.
LandOfFree
Control circuit for resonant converters does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control circuit for resonant converters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control circuit for resonant converters will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1927307