In this paper,the application of PIC single chip connected with 7135 by 3 serial interface is introduced in the intelligent Volt and Ampere meter. Detailed idea of design, operation principle, problems and the solutions in design are introduced too.

• 本文介绍了7135与PIC单片机通过简单的3线串行接口,应用于高精度智能电压/电流表中,并阐述了详细的设计思路、工作原理以及设计中遇到的一些问题、解决方法等。