Polyphase switching regulator
US11791118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2020 |
| Grant date | Oct 17, 2023 |
| Priority date | — |
| Expiry date | Sep 20, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1586
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switching regulator is disclosed comprising a high-voltage port, a low-voltage port, n number of switching poles, a magnetic element, and a controller. In turn, each switching pole connects across the high-voltage port and may consist of either one switch and one diode or two switches and two diodes. In turn, the magnetic element comprises a ferro-core having n number of magnetic branches, each of which includes a winding. Each winding start connects to the phase node of a respective switching pole, while each winding finish connects, in common, to one side of the low-voltage port. An n+1th magnetic branch establishes a defined common-mode inductance which, in combination with transformer action, limits current ripple. The transformer action serves to exchange ripple power between phases such that the need for inductance is greatly reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.