Title:
IMPEDANCE MATCHING METHOD AND APPARATUS FOR RADIO FREQUENCY HEATING SMOKING SET, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/173787
Kind Code:
A1
Abstract:
An impedance matching method and apparatus for a radio frequency heating smoking set, and an electronic device. The method comprises: when it is detected that a target cigarette is inserted, acquiring parameter information of a radio frequency power supply; controlling the radio frequency power supply to transmit a preset measurement current to electrode plates, calculating, on the basis of the parameter information, measurement working power corresponding to the preset measurement current, and determining, on the basis of the measurement working power, load impedance of the target cigarette; and when the load impedance is not matched with power supply impedance of the radio frequency power supply, generating, on the basis of the load impedance, adjustment information used for adjusting an alternating current frequency of the radio frequency power supply until the load impedance is matched with the power supply impedance. According to the present invention, after the target cigarette is inserted into the smoking set, the specific load impedance of the target cigarette is calculated and determined according to the measurement working power between the electrode plates, and then the load impedance is adjusted by adjusting the alternating current frequency of the radio frequency power supply, so that the load impedance is matched with the power impedance, and the optimal power use efficiency is achieved.
Inventors:
XIAO QIAN (CN)
LIU LEI (CN)
LI RUOXI (CN)
ZHANG YIMING (CN)
HONG JUNJIE (CN)
SHI QIUXIANG (CN)
LIU LEI (CN)
LI RUOXI (CN)
ZHANG YIMING (CN)
HONG JUNJIE (CN)
SHI QIUXIANG (CN)
Application Number:
PCT/CN2022/132480
Publication Date:
September 21, 2023
Filing Date:
November 17, 2022
Export Citation:
Assignee:
CHINA TOBACCO HUBEI IND LLC (CN)
International Classes:
H05B6/00; H05B1/02; H05B6/64; H05B6/68
Foreign References:
| CN114641098A | 2022-06-17 | |||
| CN103619117A | 2014-03-05 | |||
| CN104900472A | 2015-09-09 | |||
| CN101494946A | 2009-07-29 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)
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