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Description: 本设计是基于AD637集成芯片的数字交流毫伏表电路设计。该毫伏表以真有效值转换集成芯片AD637为核心，以微控制器（MCU）为量程转换控制，并使用MCU内部十位A/D转换器为模数转换，通过LCD显示，并辅以必要的外围电路设计而成。数字交流毫伏表主要由MCU控制模块、程控放大器模块、真有效值转换模块、电压数字显示模块等组成，测量范围为0-10Vpp，并且能够根据实际交流电压输入完成相应的量程转换功能，同时使用LCD显示电压值。-This design is based on the integrated chip AD637 digital ac millivoltmeter circuit design. The millivoltmeter integrated chip AD637 true RMS conversion as the core, with microcontroller (MCU) for range switching control, and use the MCU internal A/D converter for ten modulus conversion, through the LCD display, supplemented by necessary peripheral circuit design. Digital ac millivoltmeter is mainly composed of MCU control module, a programmable amplifier module, true RMS voltage module, digital display module, etc, the measuring range of 0 to 10 VPP, and be able to complete the corresponding according to actual ac voltage input range switching function, at the same time use the LCD display voltage value.
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Size: 50176 |
Author: 陈剑明 |
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