Description
The Study of Operational Amplifier as Voltage and Current Feedback Amplifier Apparatus is a comprehensive educational trainer designed to demonstrate the principles and performance of negative feedback in operational amplifier circuits. This apparatus enables the study of voltage feedback and current feedback amplifier configurations, helping students understand gain control, bandwidth improvement, stability, and noise reduction in amplifier systems.
Ideal for electronics laboratories, physics labs, engineering colleges, polytechnic institutes, and technical training centers.
✅ Key Features
🔄 Voltage & Current Feedback Study
Demonstrates voltage series, voltage shunt, current series, and current shunt feedback configurations
Clear understanding of feedback topology and its effect on gain
Comparison between voltage and current feedback amplifiers
⚡ Operational Amplifier Based Design
Uses industry-standard operational amplifier IC
Stable and reliable circuit performance
Suitable for both AC and DC signal analysis
📊 Gain, Bandwidth & Stability Analysis
Study of gain with and without feedback
Observation of bandwidth improvement due to feedback
Analysis of stability and reduction in distortion
🔌 Built-In Power Supply
Internal regulated DC power supply
Student-safe low voltage operation
No external supply required
🔧 Measurement & Test Points
Clearly marked test points for voltage and current measurement
Provision for external signal generator and CRO
Easy calculation of feedback factor and closed-loop gain
🧱 Educational Trainer Construction
Printed circuit diagram on front panel
Clearly labeled switches, terminals, and components
Compact, rugged enclosure for long-term laboratory use
🛡 Safety & Reliability
Short-circuit protected design
High-quality components ensure durability
Safe for continuous student experimentation
📘 Typical Applications
Study of negative feedback in amplifiers
Voltage feedback amplifier analysis
Current feedback amplifier analysis
Gain stabilization and bandwidth enhancement study
Electronics and instrumentation laboratory experiments
💡 Why Choose This Apparatus?
Clear demonstration of feedback concepts in operational amplifiers
Essential for understanding real-world amplifier design
Accurate, repeatable experimental results
Ideal for engineering and diploma practical courses
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