Battery Monitor Circuit Using Op-Amp
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This document describes a battery monitoring circuit using an op-amp. The circuit allows one to determine if a battery is charging or discharging without using a voltmeter. It works by configuring the op-amp in a comparator mode, with the inverting input set by a variable resistor and the non-inverting input connected to the battery. When the battery voltage is higher or lower than the reference voltage, LEDs will light up to indicate the charging status. The circuit uses inexpensive and common components like resistors, capacitors, LEDs, and can help easily monitor battery voltage.
Battery Monitor Circuit Using Op-Amp
- 1. GREEN UNIVERSITY OF BANGLADESH Department: EEE (Eve) Prepared For: Nusrat Alim Lecturer, GUB Prepared By: ID# 143010003 Course Title: Electronics II
- 2. Battery Monitor Circuit Using Op-Amp
- 3. Objective: Introduction Concept Equipments Circuit diagram Application Limitation
- 4. Introduction We don’t know about battery is charged or discharged. One common method is using voltmeter. But here we have developed this battery monitor circuit to test the battery charging status.
- 5. Concept Useing op amp which can be configured in many modes like comparator, amplifier, inverting mode, non- inverting mode, etc. Inverting point fixed with veriable resistor. The testing battry’s possetive terminal connected as input in the non-inverting point.
- 6. Equipments Op-Amp (LM324) Resistors (1K -8, 100K, 27K) Variable Resistor (10K) Capacitor (100 nf -2) LED (5) Battery
- 7. # IC LM324 Fig: Structure Of IC LM324
- 9. Low in cost. Simple ckt. Parts are cheap and easy to get. Easy and useful for monitoring battery voltage. Advantages