Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1994-08-30
1997-04-15
Wong, Peter S.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 8, 363 86, H02M 3335
Patent
active
056216246
ABSTRACT:
A power supply is disclosed which is compatible with modern thin film technology which has an overall size compatible with modern miniaturized electronic components. Input power having an oscillating component in the 50/60 Hz 120/220 volt range is immediately switched to high frequency current exceeding 100 KHz and preferably switched with a frequency in the megahertz range. The switched current, otherwise unaltered from its current having an oscillating component, is then transduced in voltage at a thin film transformer, passed through thin film mounted electronic components for rectification and filtering. A regulator circuit modifies the semi-conductor switch duty cycle to control the rectifier output voltage. All transformer, rectifier, and filter components are of thin film variety and mounted to attain efficient heat dissipation together with size reduction comparable to the powered components driven by the power supply.
REFERENCES:
patent: 3614554 (1971-10-01), Ramsey
patent: 4519024 (1985-05-01), Federico et al.
patent: 5355301 (1994-10-01), Saito et al.
Soohoo, R.F. (1979) "Magnetic Thin Film Inductors For Integrated Circuit Applications", IEEE Transactions on Magnetics, Mag-15(6):1803-1805.
Han Y. J.
Wong Peter S.
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