| abstract |
The utility model relates to semiconductor device.A technical problem solves the problem relevant to one or more problem existed in prior art.According to an embodiment, semiconductor device comprises the common-mode filter together with protection device single-chip integration.This common-mode filter can comprise first, second, third and the 4th coil, and wherein each coil has first and second terminal, and the first coil and the second coil magnetic coupling, and tertiary coil and the 4th coil magnetic coupling.Protection device has the first terminal coupled with the first terminal of the first coil and the second terminal coupled with the first terminal of tertiary coil.Energy-storage travelling wave tube has the terminal coupled with second and the first terminal of first and second coil respectively.According to the embodiment of aspect of the present utility model, can provide the protection of electric transient and the semiconductor device providing noise filtering. |