公开(公告)号：US20200153277A1

公开(公告)日：2020-05-14

申请号：US16619428

申请日：2018-04-30

Applicant: General Electric Company

Inventor： Sivabalan MOHAN ,  Rejendra NAIK ,  Arun Kumar RAGHUNATHAN ,  Somakumar Nmn RAMACHANDRAPANICKER

IPC: H02J50/10 ,  H02J50/40 ,  H02J7/02

Abstract: A wireless charging device (102) is disclosed. The wireless charging device (102) includes a transmitter detection coil (130) configured to receive a first alternating current (AC) voltage signal having a characteristic associated with a receiver device (104). Also, the wireless charging device (102) includes a control unit (112) coupled to the transmitter detection coil (130) and configured to detect the receiver device (104) based on the characteristic of the first AC voltage signal. Further, the wireless charging device (102) includes a driver unit (108) coupled to the control unit (112) and configured to convert a direct current (DC) voltage signal of an input power to a second AC voltage signal if the receiver device (104) is detected. In addition, the wireless charging device (102) includes a power transmission coil (116) configured to wirelessly transmit the second AC voltage signal to the receiver device (104).

公开(公告)号：US20200059121A1

公开(公告)日：2020-02-20

申请号：US16604481

申请日：2018-03-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Sivabalan MOHAN ,  Somakumar RAMACHANDRAPANICKER ,  Kumar Arun RAGHUNATHAN ,  Rajendra NAIK ,  Kutubuddin Adnan BOHORI

IPC: H02J50/90 ,  H02J7/02 ,  H02J50/12 ,  G01V3/10

Abstract: A wireless charging device includes a power source (106) configured to generate a direct current (DC) voltage signal. Also, the wireless charging device includes a driver unit (108) configured to receive the DC voltage signal and convert the DC voltage signal to a first alternating current (AC) voltage signal. Further, the wireless charging device includes a transmitting unit (110) including a resonant capacitor (114) and a resonant coil (116), coupled to the driver unit (108), wherein the transmitting unit (110) is configured to receive and transmit the first AC voltage signal. Additionally, the wireless charging device includes a control unit (112) configured to detect a receiver device (104) based on a change in at least one of a capacitive voltage across the resonant capacitor (114) and an inductive voltage across the resonant coil (116) if the receiver device (104) is positioned within a predetermined distance from the transmitting unit (110).