Wireless power transfer for vehicles
US10040358B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2016 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Jul 1, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inductive charge system may include an inductive charging circuit having a switchgear configured to swap between a step-up converter and a step-down converter. The inductive vehicle charge station or system may include a controller configured to operate the switchgear to switch between the step-up converter and the step-down converter based on presence or absence of a load. The step-up converter may be a boost converter. The step-down converter may be a buck converter. The buck converter may have a maximum power output of 100 W. An output of the step-down converter may include a forward-biased diode to prevent backfeeding. The controller may be further configured to ramp an output voltage of the step-down converter from a coupling voltage to a charging voltage to prevent hard switching between the step-up converter and the step-down converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.