Systems and methods for regulating a power draw from an induction power harvester (IPH)
US11728678B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 10, 2019 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Aug 25, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/043
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for regulating input impedance of a switching regulator, the method comprising: obtaining, at an impedance controller: (a) a measured voltage value that is indicative of an input current of the switching regulator and (b) an input voltage of the switching regulator, wherein a ratio of the input voltage to the input current defines an actual input impedance of the switching regulator; generating a control signal by the impedance controller, in accordance with a difference between the actual input impedance of the switching regulator and a desired input impedance of the switching regulator, wherein the desired input impedance is a predefined impedance; and controlling a feedback node feeding the switching regulator, in accordance with the control signal, to realize an output voltage of the switching regulator for achieving the desired input impedance, wherein the feedback node is external to the switching regulator, thereby regulating the input impedance of the switching regulator externally to the switching regulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.