Power converter employing a micromagnetic device
US7544995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2007 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Dec 12, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F41/046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.