Current measurement using inductor coil with compact configuration and low TCR alloys
AssigneeCyntec Co., Ltd.
InventorChun-Tiao Liu
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Abstract
This invention discloses an inductor that includes a conducting wire composed of an alloy having temperature coefficients of resistance (TCR) approximately 0.0002 milliohm per Celsius degree or is lower. The inductive coil has a winding configuration provided for enclosure in a substantially rectangular box with a mid-plane extended along an elongated direction of the rectangular box wherein the conducting wire interesting at least twice near said mid-plane.
Claims40
An inductor comprising:
- a conducting wire composed of an alloy having temperature coefficients of resistance (TCR) approximately 0.0002 milliohm per Celsius degree or lower.
A method for manufacturing an inductor comprising:
- winding a conducting wire composed of an alloy having temperature coefficients of resistance (TCR) approximately 0.0002 milliohm per Celsius degree or lower.
The method of claim 18 further comprising:
- molding said conducting wire in a magnetic bonding material comprising powdered particles with a diameter smaller than ten micrometers and coated with an insulation layer.
The method of claim 19 wherein:
- said step of winding said conducting wire further comprising a step of winding said conducting wire with a winding configuration provided for enclosure in a substantially rectangular box
An electric apparatus comprising:
- an inductor comprising a conducting wire composed of an alloy having temperature coefficients of resistance (TCR) approximately 0.0002 milliohm per Celsius degree or lower whereby a current can be measured directly over said inductor.
Dependencies are inferred from the claim text.