一款能识别电压的闪烁指示灯

本文提出了一款能够识别电压高低的指示灯电路,电路电压正常时指示灯持续发光,当电路电压变低时能够进入闪烁状态,简称为欠压闪烁指示灯。该欠压闪烁指示灯电路由参考电压电路、电压误差电路、RC延迟振荡电路、LED灯电路三部分组成,电路结构十分简单,可组成既能判断是否出现欠电压,还能够连续指示欠电压程度的电路模块。欠压闪烁指示灯可在各类电器设备中用作电源指示,尤其是采用化学电池供电的电器设备中更具有实用意义。

This paper proposes a able to identify the indicator of high and low voltage circuit, the circuit voltage when the normal light continues to glow, when circuit voltage lower can enter a state of flashing, referred to as undervoltage flashing lights. Gai Qian pressure flashing lights by the reference voltage circuit, voltage error, delay in RC oscillation circuit, LED lamp circuit of three parts, the circuit structure is simple, can be composed of both can determine whether appear under voltage, can continuous indicating owe voltage circuit module. Under voltage flicker light can used as power supply in various kinds of electrical equipment instructions, especially the chemical battery has more practical meaning in the electrical equipment.