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Patent Searching and Data


Title:
TERMINAL DEVICE AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/232838
Kind Code:
A1
Abstract:
A terminal device (01) and a control method therefor, relating to the technical field of electronics. A solution for switching a Q value of a transmitting apparatus (10) is provided. The terminal device (01) comprises a display screen (11), a housing (12), and an intermediate frame (13); the side of the intermediate frame (13) facing the housing (12) is provided with a transmitting circuit (42); the transmitting circuit (42) comprises: a matching network (421) and a transmitting coil (422) connected to the matching network (421), the matching network (421) being used for performing impedance matching on a received alternating current power signal and then sending same to the transmitting coil (422), and the matching network (421) comprising a parallel resonance capacitor C21 connected to the transmitting coil (422) in parallel; and the transmitting circuit (42) further comprises: a resistance value switching circuit (423) connected to the parallel resonance capacitor C21 in series, the resistance value switching circuit (423) being used for adjusting the Q value of the transmitting circuit (42) by changing the resistance value of the resistance value switching circuit (423).

Inventors:
LIU, Yanding (CN)
SHU, Weiliang (CN)
XIAO, Furong (CN)
LIU, Qitang (CN)
Application Number:
PCT/CN2021/073369
Publication Date:
November 25, 2021
Filing Date:
January 22, 2021
Export Citation:
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Assignee:
HUAWEI TECHNOLOGIES CO., LTD. (CN)
International Classes:
H02J50/23; H04B1/02; H04W88/02
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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