Blue Ring Tester Schematic — Diagram Exclusive

Usually 6 to 8 LEDs ranging from Red (bad) to Blue (excellent). How the Schematic Works

Finding faults in SMPS transformers.

The microcontroller or discrete logic counter reads the number of pulses generated by the LM393 and displays the health status via an 8-LED bar graph. Shorted turn or completely dead coil. 4–5 LEDs (Yellow): Marginal component or low-Q inductor. blue ring tester schematic diagram exclusive