摘要
提出了一种无变压器LED闪光及声光报警电路,电路包括市电输入,电容降压整流电路,稳压电路,低频振荡电路等,介绍了电路的结构及工作原理,并对高频振荡电路和低频振荡电路选择计算做了说明。
This paper presents an alarming circuit using LED light and sound without transform. The circuit comprises a commercial power input, a circuit reducing voltage by capacitor, voltage regulator circuit, low-frequency oscillation circuit, and so on. Moreover, the paper introduces the structure and working principle of the circuit, calculation of the high-frequency oscillation circuit and low-frequency oscillation circuit.
出处
《漳州职业技术学院学报》
2017年第2期1-4,共4页
Journal of Zhangzhou Institute of Technology
关键词
无变压器
振荡电路
报警
no transformer
oscillating circuit
alarming
