Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1992-08-07
1995-03-21
Stephan, Steven L.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 56, 363 40, 363 98, 363132, H02M 3335
Patent
active
054002354
ABSTRACT:
A DC to DC power converter circuit has a current fed inverter with a series connected first diode and a capacitor connected in parallel with the legs of the inverter. The diode is poled to provide current to the capacitor at the beginning of each inverter switching cycle as energy is passed from the circuit to an output transformer-rectifier circuit. A recirculation inductor and an additional diode are connected in parallel with the legs of the inverter with the additional diode poled to recirculate current in the recirculation inductor. Then a switch between the junction of the capacitor and first diode and also between the additional diode and recirculation inductor provides for discharging of the capacitor without power dissipation during the inverter operation instead of dissipating and losing the energy. Thus the recirculation is accomplished by few components to provide a lossless clamp circuit for recirculating the energy in the circuit from the capacitor back to the recirculation inductor. Each switch of the inverter has an FET with zener diode protection. The inverter is packaged in a hybrid module.
REFERENCES:
patent: 3737755 (1973-06-01), Calkin et al.
patent: 3902107 (1975-08-01), Brown
patent: 4099225 (1978-07-01), Nygaard
patent: 4566059 (1986-01-01), Gallios et al.
patent: 4570212 (1986-02-01), Edwards et al.
patent: 4580205 (1986-04-01), Matsuse
patent: 4638138 (1987-01-01), Rosa et al.
patent: 4670833 (1987-06-01), Sachs
patent: 4691270 (1987-09-01), Pruitt
patent: 4721897 (1988-01-01), Matsuse et al.
patent: 4761722 (1988-08-01), Pruitt
patent: 4937725 (1990-06-01), Dhyanchand et al.
patent: 5019952 (1991-05-01), Smolenski et al.
IEEE Power Electronics Vo. 3 No. 1. Jan. 1988 Recovery Circuit for Snubber Energy in Power Electronic Applications with High Switching Frequencies pp. 26-29. J. C. Bendien & H. Van Der Broeck, G. Fregien.
IEEE Transactions on Industry Applications vol. 1A-12, No. 4 Jul./Aug. 1970 Aconceptually New Approach for Regulated DC to DC Converters Employing Transistor Switches and Pulsewidth Control pp. 369-377.
Augspurger Lynn L.
Berhane Adolf
International Business Machines Corp.
Shkurko Eugene I.
Steinberg William H.
LandOfFree
High frequency energy saving DC to DC power converter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High frequency energy saving DC to DC power converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High frequency energy saving DC to DC power converter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1154126