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US 10,381,897 B2Granted
Bus bar with integrated voltage rise time filter
AssigneeWisconsin Alumni Research Foundation
InventorsDaniel Colin Ludois, Andy Lee Schroedermeier
Life of this patent
Estimating the term…
Abstract
A bus bar or similar high current conductor may be sheathed in a high relative permeability material formed in layers to both increase the inductance of that conductor and to provide a capacitance and resistance useful for forming a low pass filter to reduce the rise time of the voltage signals on the bus bar such as can be damaging to motor insulation and the like.
Claims20
A bus conductor comprising:
- an electrical conductor extending along a length between a first and second end;
- and
- a wrapping spiraling around and radially outward from the length of the electrical conductor so as to expose the first and second ends of the electrical conductor for connection thereto, the wrapping being interleaved spirals of first and second layers of electrically conductive material separated by insulating material;
- wherein the first layer of electrically conductive material is electrically attached to a first end of the electrical conductor and connected to the second end through an inductance of the electrical conductor promoted by the wrapping and the second layer of electrically conductive material is electrically attached to a ground lead electrically isolated from the central conductor and adapted to be connected to a ground.
1 more element
A motor drive system comprising:
- a solid-state power supply;
- a motor;
- and
- at least one bus conductor passing between the solid-state power supply and the motor having:
- an electrical conductor extending along a length between a first and second end;
- and
- a wrapping spiraling around and radially outward from the length of the electrical conductor so as to expose the first and second ends of the electrical conductor for connection thereto, the wrapping being interleaved spirals of first and second layers of electrically conductive material separated by insulating material;
- wherein the first layer of electrically conductive material is electrically attached to a first end of the electrical conductor and connected to the second end through an inductance of the electrical conductor promoted by the wrapping and the second layer of electrically conductive material is electrically attached to a ground lead electrically isolated from the central conductor and adapted to be connected to a ground.
5 more elements
Dependencies are inferred from the claim text.