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LED Voltmeter Circuit Design Guide by Naveen Yannamani is a document available to read on EtoBox.
What is LED Voltmeter Circuit Design Guide about?
The document describes a circuit designed by students to measure battery voltage levels using LEDs and comparators. The circuit uses an LM324 quad comparator IC to compare the battery voltage to four reference voltages and light the corresponding LED when the battery voltage is at or above that level, displaying the battery charge state. The circuit was designed and built by the students and was able to measure battery voltage levels but could only indicate ranges rather than precise values.
- Author
- Naveen Yannamani
- Language
- EN