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US 10,476,380 B2Granted
Common-mode choke for paralleled power semiconductor
AssigneeFord Global Technologies, LLC
InventorsFan Xu, Lihua Chen, Shahram Zarei
Life of this patent
Estimating the term…
Abstract
A power module includes a plurality of switching devices. The switching devices are electrically coupled in parallel and triggered by a common gate signal. The switching devices are further attached to a substrate that includes a first coil and a second coil formed around a common axis to define a common mode choke in a gate path and a Kelvin source/emitter path of each of the switching devices.
Claims19
A power module comprising:
- a plurality of switching devices, electrically coupled in parallel and triggered by a common gate signal, attached to a substrate that includes a first coil and a second coil that are formed as traces in the substrate around a common axis to define a common mode choke in a gate path and a Kelvin source/emitter path of each of the switching devices.
A power module comprising:
- a plurality of switching devices, electrically coupled in parallel and triggered by a common gate signal, attached to a substrate that includes a first trace and a second trace formed around a common axis in different planes of the substrate to define a common mode choke in a gate path and a Kelvin source/emitter path of each of the switching devices.
A traction inverter comprising:
- a plurality of switching devices, electrically coupled in parallel and triggered by a common gate signal;
- and a printed circuit board including traces formed around a common axis that define a pair of windings for a common mode choke in a gate path and a Kelvin source/emitter path of each of the switching devices.
Dependencies are inferred from the claim text.