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Patent Searching and Data


Title:
POWER SUPPLY RECTIFICATION CIRCUIT FOR ELECTRONIC TAG
Document Type and Number:
WIPO Patent Application WO/2018/107677
Kind Code:
A1
Abstract:
Embodiments of the present invention relate to a power supply rectification circuit for an electronic tag, comprising: a control circuit, a first rectification and voltage adjustment circuit, a second rectification and voltage adjustment circuit, a power supply detection circuit, and a voltage stabilization capacitor. The power supply detection circuit acquires a voltage of a first end of the voltage stabilization capacitor, and sends a feedback signal to the control circuit according to the voltage of the first end of the voltage stabilization capacitor; the control circuit is configured to control, according to the feedback signal, a first antenna signal, and a second antenna signal, the first rectification and voltage adjustment circuit or the second rectification and voltage adjustment circuit to charge the voltage stabilization capacitor; the power supply detection circuit controls the voltage of the first end of the voltage stabilization capacitor to be within a range required for the operation of a chip. The circuit structure is simple and the area of a chip is reduced.

Inventors:
FU LING (CN)
HE YANG (CN)
HU YI (CN)
WANG XIAOMAN (CN)
YANG XIAOKUN (CN)
ZHAO DONGYAN (CN)
WANG YUBO (CN)
ZHANG HAIFENG (CN)
Application Number:
CN2017/087968
Publication Date:
June 21, 2018
Filing Date:
June 12, 2017
Export Citation:
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Assignee:
BEIJING SMARTCHIP MICROELECTRONICS COMPANY LTD (CN)
STATE GRID INFORMATION A TELECOMMUNICATION GROUP CO LTD (CN)
STATE GRID CORP CHINA (CN)
International Classes:
G06K19/077
Foreign References:
CN106599974A2017-04-26
CN205050168U2016-02-24
CN102521639A2012-06-27
CA2066552C2002-06-25
US20030183699A12003-10-02
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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