Power transformers and power inductors for low-frequency applications using isotropic material with high power-to-weight ratio
First Claim
1. A transformer for low frequency applications of from 50 Hz to 1000 Hz, said transformer comprising:
- a core having a cylindrical symmetry around a main revolution axis, said core being formed of a soft isotropic magnetic material comprised of iron, said core including integral cooling fins comprising the soft isotropic magnetic material projecting from an external surface of said core; and
windings enclosed in said core and magnetically coupled with said core.
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Accused Products
Abstract
A transformer for low frequency applications of from 50 Hz to 1000 Hz is described. The transformer comprises a core having a cylindrical symmetry around a main revolution axis. The core is formed of a soft isotropic magnetic composite material composed of iron and resin. Windings are enclosed in the magnetic core and disposed about a central column of the magnetic core and magnetically coupled with the inductor for low frequency applications, DC to 1000 Hz of similar construction is also described, the inductor comprises a core having a cylindrical symmetry around a main revolution axis. The core is formed of a soft isotropic magnetic composite material composed of iron and resin. Winding is enclosed in the magnetic core and disposed about a central column of the magnetic core and magnetically coupled with the magnetic core. The core is formed by core sections.
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Citations
35 Claims
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1. A transformer for low frequency applications of from 50 Hz to 1000 Hz, said transformer comprising:
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a core having a cylindrical symmetry around a main revolution axis, said core being formed of a soft isotropic magnetic material comprised of iron, said core including integral cooling fins comprising the soft isotropic magnetic material projecting from an external surface of said core; and
windings enclosed in said core and magnetically coupled with said core. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 33, 34)
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16. An inductor for low frequency applications, DC to 1000 Hz, said inductor comprising:
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a core having a cylindrical symmetry around a main revolution axis, said core being formed of a soft isotropic magnetic material comprised of iron, said core including integral cooling fins comprising the soft isotropic magnetic material projecting from an external surface of said core; and
a winding enclosed in said core and disposed about a central column of said core and magnetically coupled with the said core. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 35)
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Specification