A Simple AC Voltage Detection Circuit
Zhang Weifeng1, Zhang Yanhui2, Luo Huan1 (1. Shenzhen Information Vocational Technology College, Guangdong Shenzhen 518172; 2. ZTE Corporation, Guangdong Shenzhen 518057) Abstract: This paper proposes an AC detection circuit based on integrated operational amplifiers. The circuit consists of a voltage attenuation circuit, differential operational amplification and synthesis circuits, voltage zero-crossing detection, and frequency detection circuits. … Read more
