Abstract
The present disclosure relates to a capacitive power transfer system comprising: a DC power source providing an input DC supply voltage; an inverter configured to convert the DC supply voltage into an AC power; a capacitive coupler configured to transfer the AC power wirelessly; an LCL compensation topology arranged between the inverter and the capacitive coupler; a rectifier configured to convert the wirelessly transferred AC power into a DC output, said DC output connectable to a load; and a control unit configured to control the DC power source and/or the inverter such that the capacitive power transfer system: in a constant current mode, operates at a constant current mode frequency (fcc), wherein a constant current is provided to the load; and in a constant voltage mode, operates at a constant voltage mode frequency (fcv), wherein a constant voltage is provided to the load. The present disclosure further relates to a method for controlling the capacitive power transfer system.
| Original language | English |
|---|---|
| IPC | H02J 50/ 05 A I |
| Patent number | WO2021144255 |
| Filing date | 12/01/2021 |
| Country/Territory | International Bureau of the World Intellectual Property Organization (WIPO) |
| Priority date | 13/01/2020 |
| Priority number | EP20200151498 |
| Publication status | Published - 22 Jul 2021 |