摘要
这是一款基于单片机的数字电度表,主要由显示模块、CPU模块、cs5460A电能表芯片模块和前端电路调理模块部分组成。前端电路调理模块采用2mA/2mA的电流互感器和5A/2.5mA电流互感器和精密电阻实现对市电的转换,并采用RC滤波网络滤波,然后采用由美国CRYSTAL公司的新型电能计量芯片cs5460芯片实现对电能的测量与转换;显示模块用LCD1602,并利用STC89C52组成的CPU模块控制所有芯片的工作、测量、计算电能,送往显示模块进行显示。
This paper designs and makes a digital meter based on single chip. This Digital Meter is mainly revealed the module, CPU module, CS5460A electric energy meter chip module and front circuit look after the part of the module to make up. The front circuit recuperates the module and adopts electric current mutual inductor and 5A/2.5mAelectric current mutual inductor and accurate resistance of 2mA/2mA to realize the conversion of the city electricity, and adopt RC to strain the wave network and strain the wave, then adopt measure chip, CS5460 of chip, realize to electric current, measurement and conversion of electric energy by new electric energy of Company, CRYSTAL of U.S.A.; Reveal the module uses LCD1206 liquid crystal, and utilize CPU module that STC89C52 makes up to control the work of all chips; Measure, calculate electric energy, send to is shown the module.
出处
《大众科技》
2011年第10期153-155,共3页
Popular Science & Technology
