Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1988-10-19
1989-08-08
Salce, Patrick R.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 41, 363 98, 363132, H02M 3335
Patent
active
048558885
ABSTRACT:
A full bridge DC-DC series-resonant power converter is operated at a constant switching frequency using a phase delay between the transistor legs of the bridge to control the output voltage. All power semiconductor devices switch on and switch off at approximately zero volts while operating at a constant switching frequency which is above the resonant frequency of the resonant tank circuit. Zero-voltage switching increases the efficiency of the power converter and allows high frequency operation which minimizes component volumes. Constant frequency operation simplifies design of the magnetic components, confines the EMI spectrum to known frequencies and simplifies EMI design, and reduces the voltage and current excursions and thus reduces the peak component stress.
REFERENCES:
patent: 4071812 (1978-01-01), Walker
patent: 4535399 (1985-08-01), Szepesi
patent: 4630187 (1986-12-01), Henze
patent: 4672528 (1987-06-01), Park et al.
patent: 4694383 (1987-09-01), Nguyen et al.
patent: 4757432 (1988-07-01), Hancock
"Zero-Voltage Switching Technique in High Frequency Off Line Converter", M. Jovanovic et al, IEEE PESC Record 1988, pp. 23-32.
F. Tsai, P. Materu, F. C. Lee, "Constant Frequency, Clamped-Mode Resonant Converters," IEEE PESC Record 1987, pp. 557-566.
I. J. Pital, "Phase-Modulated Resonant Power Conversion Techniques for High Frequency Inverters," IEEE IAS Annual Meeting, Proceedings, Nov. 1986.
R. Oruganti, F. C. Lee, "Effects or Parasitic Losses on the Performance of Series Resonant Converter," IEEE-IAS Annual Meeting, Proceedings 1985.
K. Liu, F. C. Lee, "Zero-Voltage Switching Technique in DC/DC Converters," IEEE PESC Record; pp. 58-70, 1986.
K. Liu, F. C. Lee, "Resonant Switches-A Unified Approach to Improve Performances of Switching Converters," IEEE International Telecommunications Energy Conference Proceedings, pp. 344-351, 1984.
Hayes John G.
Henze Christopher P.
Mohan Ned
Bowen Glenn W.
Bramson Robert S.
Salce Patrick R.
Todd Voeltz Emanuel
Unisys Corporation
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