Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2007-09-10
2009-06-09
Vu, Bao Q (Department: 2838)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257S336000, C257S341000, C257S343000
Reexamination Certificate
active
07544995
ABSTRACT:
A power converter including a power train, a controller and a driver. In one embodiment, the power train includes a switch that conducts for a duty cycle and provides a regulated output characteristic for the power converter, and a micromagnetic device. The micromagnetic device includes a first conductive winding layer selectively formed above a first seed layer, and first and second magnetic core layers formed thereabove. The micromagnetic device also includes a second seed layer formed above the second magnetic core layer, and a second conductive winding layer formed above the second seed layer and in vias to the first conductive winding layer. The first and second conductive winding layers form a winding for the micromagnetic device. The controller provides a signal to control the duty cycle of the switch, and the driver provides a drive signal to the switch as a function of the signal from the controller.
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Filas Robert W.
Liakopoulos Trifon M.
Lotfi Ashraf W.
Panda Amrit
Enpirion, Inc.
Slater & Matsil L.L.P.
Vu Bao Q
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