Techniques for focusing the energy radiated by a wireless power transmitting unit are described. An example power transmitting unit includes a transmit coil configured to generate a magnetic field to wirelessly power a device within an active wireless charging area. The power transmitting unit also includes a power generating circuitry to deliver current to the transmit coil to generate the magnetic field. The power transmitting unit also includes a ferrite structure disposed below the transmit coil, the ferrite structure comprising a flat sheet and a projection of ferrite material projecting above the flat sheet.
Field shaper for a wireless power transmitter
2021-11-16
Patent
Elektronische Ressource
Englisch
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01F MAGNETS , Magnete / H04B TRANSMISSION , Übertragung |
WIRELESS POWER TRANSMITTER AND WIRELESS POWER RECEIVER
Europäisches Patentamt | 2017
|