Output Characteristics of BJT (BC547) — LabVIEW & NI USB-6001

This repository contains my Measurement & Instrumentation (M.Sc.) project: a LabVIEW system that measures and plots the output characteristics (IC vs UCE) of a BC547 NPN transistor using an NI USB-6001 DAQ.

🚀 Overview

• Plot IC–UCE families for several IB values to observe cut-off, active, and saturation regions.
• Live numeric indicators for UB, UBE, IB, UC, UCE, IC (plus temperature if enabled).
• Helper analog stage (LM324) with gain ≈ 4.03 on the UC path.

🧰 Requirements

• LabVIEW 2023+
• NI-DAQmx
• NI USB-6001 (or adapt DAQ channels)

🔧 How to Run (quick)

1. Wire the circuit per images/schematic_*.
2. Open labview/Transistor_Characteristics_NikhilSanga_Dipto_Group4.vi.
3. Sweep UB (~0.8–1.3 V) and record IC vs UCE for each IB.
4. View the plotted IC–UCE curves on the LabVIEW front panel.

Key equations

• IB = (UB − UBE) / RB with RB ≈ 2.35 kΩ
• IC = (UC − UCE) / RC with RC ≈ 0.05 kΩ (4 × 200 Ω ∥)
• UC gain ≈ 1 + 10k / 3.3k = 4.03

📚 Documentation

See /report for complete reports and /docs for setup, theory, and results.

📎 Citation

Please cite via CITATION.cff.

📝 License

MIT — see LICENSE.

📁 Repository Structure