H - Electricity – 01 – L
Patent
H - Electricity
01
L
H01L 21/78 (2006.01) H01H 71/74 (2006.01) H01L 21/8249 (2006.01) H01L 27/02 (2006.01) H03K 17/567 (2006.01)
Patent
CA 2735527
The present invention relates generally to power switches for aircraft. According to a first aspect, the present invention provides an integrated solid state power switch (200, 300) for fault protection in an aircraft power distribution system. The integrated solid state power switch (200, 300) is formed of semiconductor material (250, 350) that provides a field effect transistor (FET) channel that is operable during normal device operation to provide an operating current flow path (242, 342) and a bipolar transistor channel that is operable during device overload conditions to provide an overload current flow path (240, 340). A method (400) for manufacturing such an integrated solid state power switch (200, 300) is also described. Various embodiments of the invention provide automatic overload current protection for aircraft systems without the need to use bulky switches or heavy cooling equipment.
Bryant Angus
Mawby Phil
Shipley Andrian
Stevens Martin
Craig Wilson And Company
Ge Aviation Systems Limited
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