Electric power conversion systems – Current conversion – With conductive support mounting
Patent
1994-09-12
1996-05-28
Wong, Peter S.
Electric power conversion systems
Current conversion
With conductive support mounting
363141, 363 37, 174133B, 174 72B, H02M 100, H02M 5458
Patent
active
055218113
ABSTRACT:
The present invention locates the primary winding of a transformer in a configuration where it substantially surrounds the secondary winding of the transformer in order to enhance the efficiency of the electromagnetic coupling. High magnetic permeability material surrounds portions of the primary winding of the transformer. The transformer is designed to efficiently operate at frequencies of approximately 50 kilohertz. In one preferred embodiment, the primary winding of the invention is formed of two U-shapes in which the parallel members of the U are substantially longer than the bottom portion of the U. The two U-shapes form a rectangular shape and the substantially parallel rectangular portions are surrounded by high magnetic permeability material to further enhance the electromagnetic coupling between the primary coil winding and the secondary coil winding. In another embodiment, the primary winding of the invention may be rectangular in shape. A strip line layout of the output of the secondary is formed of conductive and insulating layers laminated together. A power bus is configured to have a distributed inductance and is formed of two planer conductors to create a distributed capacitance which substantially cancels the effect of the distributed inductance.
REFERENCES:
patent: 5132896 (1992-07-01), Nighizawa et al.
patent: 5172310 (1992-12-01), Deam et al.
patent: 5365424 (1994-11-01), Deam et al.
Levran Alexander
Nowosielski Joseph M.
Rajagopalan Ramamoorthy
Ton-That Giao M.
Femal Michael J.
Golden Larry I.
Graefe Richard J.
Krishnan Aditya
Square D Company
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