Charging systems for contact chargers and related methods
US10491024B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Oct 30, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/61
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods relate to a charger and a rechargeable device. The rechargeable device includes a power manager and a power storage device. The power manager may include one or more diodes and a controller configured to detect a charging current, provide a managed power output, and modulate the charging current to communicate through the current. The charger may include controller configured to store a device identifier in memory associated with a last charge state, determine whether a retrieved device identifier matches, and provide an indication of a current charge state in response to a match. The controller of the charger may be configured to send an electrical pulse to the rechargeable device and determine a polarity for charging the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.