Research on Two-wire Intelligent Transmitter Based on STM32
This paper introduced the application scenarios and characteristics of two wire intelligent instruments.A two wire intelligent instrument design based on STM32 is proposed to meet the requirements and design difficulties of intelligent instruments.The design of the transmitter power circuit,control unit,PWM D/A unit,V/I current loop u-nit,and HART unit implementation circuit is elaborated in detail,which helps to design instruments with intelligent communication function and stable performance.The research results have been applied in two wire temperature transmitters.The effectiveness of this design has been verified through practical testing.
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