ETB-142 – Study of Null-Balancing Techniques of OP-AMP with Power Supply is an educational trainer kit designed to demonstrate the practical implementation of null-balancing (offset voltage adjustment) in operational amplifiers. This experiment is essential for understanding how to eliminate input offset voltage and achieve precise amplification in analog circuit applications.
The model allows learners to study the offset characteristics of an op-amp and implement various nulling techniques using external components such as potentiometers. With a built-in regulated power supply and multiple test points, this trainer provides a hands-on approach to exploring OP-AMP balancing, ideal for analog circuit design, instrumentation, and control systems education.
Key Features:
Demonstrates null-balancing and offset voltage correction in op-amps
Uses standard OP-AMP (e.g., IC 741 or equivalent)
Built-in regulated DC power supply
Test points for monitoring input/output voltages and offset behavior
Practical exposure to trimming and calibration techniques
Suitable for analog electronics, instrumentation, and signal conditioning labs
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