Inductor & Transformer Measurement with Oscilloscope

In switched mode power supplies (SMPS), magnetic components like inductors and transformers are crucial. Inductors act as energy storage devices or filters, while transformers convert voltage levels and provide isolation. They also help maintain oscillations in SMPS systems. While the design process often relies on component specs and simulations, real-world factors like signal conditions, parasitics, temperature, and more can affect performance. Thus, in-circuit measurements of these components under operating conditions offer valuable insights.

• Examines fundamental principles of inductors and transformers, focusing on in-circuit measurements
• Demonstrates oscilloscope usage and suitable probes for measuring inductor and transformer performance during power supply operation
• Illustrates use of inductance measurements and B-H curves for performance insight