Pulse type transformer with increased coupling coefficient...

Details Pulse type transformer with increased coupling coefficient... Pulse type transformer with increased coupling coefficient...

2006-12-12

2006-12-12

Mai, Anh (Department: 2832)

Inductor devices

With coil capacitance modifying means

With surge potential gradient modifying means

C336S180000, C336S181000

Reexamination Certificate

active

07148779

ABSTRACT:
The present invention provides a low duty cycle, high current DC pulse type transformer with increased coupling coefficient between the primary and secondary windings by changing the proximity of the primary windings to the secondary windings through a plurality of primary windings separated by layers of secondary windings thus reducing the average distance between the primary windings and secondary windings. In addition to the increased coupling coefficient, the invention provides a reduction in electrical potential between primary windings and secondary windings through an electrical connection between the primary winding and a tap within the secondary winding. The invention significantly increases the coupling coefficient in applications where the transformer's core becomes saturated due to the high peak current typically found in capacitive discharge type circuits such as those used in electric fence controllers, strobe circuits, and high performance ignition systems for automobile, marine, or motorcycle engines.

REFERENCES:
patent: 2412893 (1946-12-01), Lee
patent: 4518941 (1985-05-01), Harada
patent: 4795945 (1989-01-01), Mayer

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