KVL Basics
Go around a loop: rises and drops cancel out. Sum V = 0
Your Formula
V1 + V2 + V3... = 0 (rise +, drop -)
Steps to Solve
1. Find loops.
2. Assume currents.
3. Sum voltages = 0.
4. Crunch numbers.
Example
12V battery, 4Ω & 2Ω drops: 12 - 4I - 2I = 0 → I=2A!
Figure 1: Loop voltages balance perfectly.
Multi-Loop Awesomeness
Figure 2: Multiple loops? No problem!
Everyday Uses
- Mesh analysis
- Network design
- Troubleshooting
- Sim tools