Does SPICE Simulation Match Real Hardware?

Master the BJT Current Mirror: From SPICE Simulation to Hardware Reality In this tutorial, we dive deep into the design and realization of a current mirror circuit using two bipolar junction transistors (BJTs). We start by building and analyzing the circuit in a SPICE simulator to understand the theoretical collector currents and node voltages. Then, we move to the breadboard to test the same circuit in a real-world hardware setup. In this video, you will learn: How to select and configure NPN transistors for a current mirror. Step-by-step SPICE simulation for DC operating point analysis. Hardware assembly on a breadboard with LED indicators. How to measure and compare theoretical vs. actual current mirroring. Troubleshooting tips for manufacturing tolerances and resistance effects. Whether you're an engineering student or a hobbyist, this comparison between simulation and physical measurement will give you a solid foundation in analog circuit design. Key Components Used: 2x NPN Bipolar Junction Transistors (2N2222 or similar) Resistors (2kΩ and 100Ω) LED (for visual current indication) DC Power Supply (5V) Digital Multimeter #Engineering #Electronics #BJT #CurrentMirror #CircuitDesign #SPICE #Breadboard #AnalogElectronics