System and method for triggering power transfer across an inductive power coupling and non resonant transmission
US10523054B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2016 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Sep 24, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/23
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A triggerable power transmitter for power transmission from a primary coil to an inductively coupled secondary coil in a power receiver has a primary coil; a driver for electrically driving the primary coil; a probing coil receives analog signals indicative of resonance properties of the primary coil; analog filters may be used to filter frequencies, and a processor capable of generating digital information in response to the analog signal and determining if said primary coil is coupled to a secondary coil based on the digital information, and triggering power from the primary coil to said secondary coil when said primary coil is inductively coupled to said secondary coil. A resistor may be selectably connected in series with the primary coil and shorted out when power is transmitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.