Blue Ring Tester Schematic Diagram Exclusive [better]

Blue Ring Tester Schematic Diagram Exclusive [better]

The LED bar graph gives you a visual, real-time indication of the component's Q. The number of LEDs lit is directly proportional to the quality of the coil. The higher the Q, the more 'rings' and the more LEDs light up. It's that simple.

+9V to +12V DC Input │ [ ] R1 (10k) │ ├───●───────┐ │ │ │ [ ] [ ] [ ] R4 (47k) R2 [ ] [ ] R3 [ ] (10k) │ │(10k) │ LM3914 LED Driver │ │ │ ┌─────────────────┐ Pulse Input ●───┼───────┼───►│ Pin 5 (Signal) │ (From MCU/555) │ │ │ │ │ │ [ ] [ ] === │ Pin 1 -> LED 1 │ [ ] R5 [ ] [ ] C2 │ Pin 10 -> LED 10│ [ ] (1k) │ │ (1nF) └────────┬────────┘ │ │ │ │ │ ●────────┴─●────────● │ │ │ │ │ │ │ │ │ │ ===== C1 ├─┐ │ │ │ [ ] R6 (10nF) │ └─┼────────┘ │ [ ] (22k) │ │ │ │ │ │ LM393│ │ │ ●──────────┴─►(Inv) ├───┘ │ │ (Non) │ │ [─] Test ▲ │ │ [─] Probes └────┘ │ │ │ └──────────────────────────────────────────────┴─── GND Components List IC1: LM393 (Low Power Dual Voltage Comparator) IC2: LM3914 (Dot/Bar Display Driver) Resistors: R1, R2, R3: 10kΩ (Metal Film, 1/4W) R4: 47kΩ (1/4W) R5: 1kΩ (1/4W) R6: 22kΩ (1/4W) Capacitors: blue ring tester schematic diagram exclusive

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The LED bar graph gives you a visual, real-time indication of the component's Q. The number of LEDs lit is directly proportional to the quality of the coil. The higher the Q, the more 'rings' and the more LEDs light up. It's that simple.

+9V to +12V DC Input │ [ ] R1 (10k) │ ├───●───────┐ │ │ │ [ ] [ ] [ ] R4 (47k) R2 [ ] [ ] R3 [ ] (10k) │ │(10k) │ LM3914 LED Driver │ │ │ ┌─────────────────┐ Pulse Input ●───┼───────┼───►│ Pin 5 (Signal) │ (From MCU/555) │ │ │ │ │ │ [ ] [ ] === │ Pin 1 -> LED 1 │ [ ] R5 [ ] [ ] C2 │ Pin 10 -> LED 10│ [ ] (1k) │ │ (1nF) └────────┬────────┘ │ │ │ │ │ ●────────┴─●────────● │ │ │ │ │ │ │ │ │ │ ===== C1 ├─┐ │ │ │ [ ] R6 (10nF) │ └─┼────────┘ │ [ ] (22k) │ │ │ │ │ │ LM393│ │ │ ●──────────┴─►(Inv) ├───┘ │ │ (Non) │ │ [─] Test ▲ │ │ [─] Probes └────┘ │ │ │ └──────────────────────────────────────────────┴─── GND Components List IC1: LM393 (Low Power Dual Voltage Comparator) IC2: LM3914 (Dot/Bar Display Driver) Resistors: R1, R2, R3: 10kΩ (Metal Film, 1/4W) R4: 47kΩ (1/4W) R5: 1kΩ (1/4W) R6: 22kΩ (1/4W) Capacitors: