Sensing a phase-path current in a coupled-inductor power supply
US9602005B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2014 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Sep 4, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An embodiment of a power supply includes an output node, inductively coupled phase paths, and a sensor circuit. The output node is configured to provide a regulated output signal, and the inductively coupled phase paths are each configured to provide a respective phase current to the output node. And the sensor circuit is configured to generate a sense signal that represents the phase current flowing through one of the phase paths. For example, because the phase paths are inductively coupled to one another, the sensor circuit takes into account the portions of the phase currents induced by the inductive couplings to generate a sense signal that more accurately represents the phase current through a single phase path as compared to conventional sensor circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.