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Magnetic core

About: Magnetic core is a research topic. Over the lifetime, 30011 publications have been published within this topic receiving 155247 citations.


Papers
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Journal ArticleDOI
TL;DR: A brief history of applications of amorphous alloys as soft magnetic materials is given in this article, where specific applications are discussed in which amorphus are currently being used due to their unique properties.
Abstract: The applications of ferromagnetic amorphous alloys provide an excellent example of the unpredictable nature of the benefits from research and from the development of a technology This paper traces a brief history of applications of amorphous alloys as soft magnetic materials Specific applications are then discussed in which amorphous alloys are currently being used due to their unique properties Applications which offer promise for significant future uses are also discussed

38 citations

Patent
03 Jun 1988
TL;DR: In this paper, a self-regulating heater comprises a non-conductive, magnetic core having a coil wound about it and providing pole pieces extending into contact or very near contact with a surrounding ferromagnetic member which in turn may be surrounded by and in intimate contact with non-magnetic low resistance member.
Abstract: A self regulating heater comprises a non-conductive, magnetic core having a coil wound about it and providing pole pieces extending into contact or very near contact with a surrounding ferromagnetic member which in turn may be surrounded by and in intimate contact with a non-magnetic low resistance member; the magnetic member having an effective Curie temperature at the temperature to be maintained

38 citations

Patent
28 Jul 1994
TL;DR: In this paper, the fabrication of thin-film inductors on a substrate is described, which may include thin film resistors, thin film capacitors, and semiconductor devices, and a combination of various individual process steps from various embodiments are suitable for use to fabricate the individual layers to achieve a structure of this invention.
Abstract: The fabrication of thin film inductors on a substrate, which may include thin film resistors, thin film capacitors, and semiconductor devices. In one embodiment an inductor is fabricated initially on a substrate and then integrated with other devices subsequently formed on the substrate. In this embodiment, process steps used to fabricate such other devices utilize temperatures sufficiently low to prevent damaging or destroying the characteristics of the inductor. In another embodiment the fabrication of an inductor is achieved through photoresist masking and plating techniques. In alternative embodiments, fabrication of an inductor is achieved by sputtering, photoresist processes and etching/ion-milling techniques. A combination of various individual process steps from various embodiments are suitable for use to fabricate the individual layers to achieve a structure of this invention. The inductor fabricated in accordance with this invention is connected to other passive or active components through metal interconnections in order to improve the frequency performance of the inductor. In certain embodiments, parasitic capacitance of the inductor is significantly reduced by fabricating inductor coils on dielectric bridges. In certain embodiments, a magnetic core of ferromagnetic material is used to improve the performance of the inductor at frequencies below about 100 MHz.

38 citations

Patent
12 Nov 1991
TL;DR: In this article, a magnetic core is used for two-dimensional beam scanning in rotational or x-y directions, where magnetic field is defined with respect to the core and its coils and interacts with current applied to the coils to produce torque.
Abstract: A miniature device for moving a reference plane or point on an axis in rotational or x-y directions, particularly useful for two dimensional beam scanning. The device consists of a ferromagnetic ring surrounding a magnetic core which is flexibly mounted and suspended within it. Electric current at various frequencies is supplied to coils wrapped about and mounted within the ring. The core provides a magnetic field within the ring which defines its coordinates with respect to the ring and its coils and interacts with current applied to the coils to produce torque. The flexible mount suspending the core within the coils permits relative movement therebetween in response to the varying current. Motion of the core may be used to position optical elements. In one embodiment, a mirror is attached to the core and a laser beam reflected off the mirror produces a variety of two dimensional scan patterns. The shape of the patterns is determined by selection of the frequencies of current applied to the coils.

38 citations

Journal ArticleDOI
TL;DR: In this article, an accurate coupling capacitor voltage transformer (CCVT) model for electromagnetic transient studies is presented, which takes into account linear and nonlinear elements and is used in connection with the electromagnetic transients program (EMTP) to predict the CCVT performance when it is submitted to transient overvoltages, as are the cases of voltages due to the ferroresonance phenomenon and circuit breaker switching.

38 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202365
2022163
2021309
2020900
20191,254
20181,426