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US 10,946,729 B2Granted
Apparatus for varying transparency of window glass using wireless power transfer
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorKwan Hui Kang
Life of this patent
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Abstract
An apparatus for varying the transparency of a window glass can include: a window glass having a film with variable transparency; a pair of electrodes connected to the film; a controller mounted on a vehicle door of a vehicle, the controller controlling a wireless transfer of power for adjusting the transparency of the film; and a wireless power receiver mounted on the window glass, the wireless power receiver wirelessly receiving the power from the controller. The wireless power receiver can apply the power wirelessly received from the controller to the pair of electrodes.
Claims11
An apparatus comprising:
- a window glass having a film with variable transparency;
- a pair of electrodes connected to the film;
- a controller mounted on a vehicle door of a vehicle, the controller controlling a wireless transfer of power for adjusting the transparency of the film;
- and
- a wireless power receiver mounted on the window glass, the wireless power receiver wirelessly receiving the power from the controller,
- wherein the wireless power receiver applies the power wirelessly received from the controller to the pair of electrodes,
- wherein the controller includes an alternating current (AC) inverter circuit converting direct current (DC) power supplied from a battery into AC power required for power transmission, a transmitting coil wirelessly transmitting the power to the wireless power receiver by electromagnetic induction, and a power transmission control module adjusting an amplitude of AC voltage output from the AC inverter circuit according to the transparency control signal to thereby control the output power level of the AC inverter circuit.
4 more elements
Dependencies are inferred from the claim text.