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目前国外一种新型的全集成电路的电压指示器,它可用来随时监视蓄电池放电终了的端电压。一旦蓄电池放电终了,指示器就会亮红灯并发声报警,提请驾驶员注意。电压指示器是由 CMOS 数字集成组成施密特电路,分别带动三只(绿、黄、红)色的发光二极管、蜂鸣器,指示蓄电池的满电与亏电情况。当蓄电池的端电压满电充足到12.5V 时绿灯亮(即电压正常)。当蓄电池的端电压下降到11.5V 时黄灯亮)绿灯灭,当蓄电池的端电压下降到10.5～10.8V 时,红灯亮并声响报警,黄灯灭(即亏电),提醒驾驶员
At present, a new type of full integrated circuit voltage indicator, which can be used to monitor the end of the battery discharge terminal voltage. Once the battery discharge is over, the indicator will light red and sound the alarm, drew the driver’s attention. Voltage indicator is composed of CMOS digital integrated Schmitt circuit, respectively, driven by three (green, yellow, red) light-emitting diodes, buzzer, indicating the battery full power loss situation. When the battery terminal voltage fully charged to 12.5V when the green light (that is, the voltage is normal). When the battery voltage dropped to 11.5V when the yellow light when the green light is off, when the battery voltage dropped to 10.5 ~ 10.8V, the red light and sound alarm, yellow light off (ie loss of power), to remind the driver