Electric energy meter communication circuit and device

• Main Authors: JIANG ZHENPING, YANG DONGPING, ZHAO YIYANG, PAN WEILING, LU LINGLING, ZHU WENXIU
• Format: Patent
• Language: Chinese; English
• Published: 09.05.2023
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses an electric energy meter communication circuit and device. The communication circuit comprises a power supply module; a level conversion module; an interface module; a protection circuit; wherein the power supply module is respectively connected with the level conversion module, the interface module and the protection circuit and is used for supplying power to the level conversion module, the interface module and the protection circuit; the level conversion module is connected with the interface module, and the level conversion module is used for converting the downloaded USB data into TTL data and converting the uploaded TTL data into the USB data; and the protection circuit is connected with the interface module and is used for protecting the interface module. 本发明公开了一种电能表通讯电路和装置，所述通讯电路包括包括：电源模块；电平转换模块；接口模块；保护电路；其中所述电源模块分别和所述电平转换模块、接口模块和保护电路连接，用于对所述电平转换模块、接口模块和保护电路供电；所述电平转换模块连接接口模块，所述电平转换模块将下传的USB数据转换为TTL数据，并将上传的TTL数据转换为USB数据；所述保护电路连接所述接口模块，用于接口模块的保护。