Digital Panel Meter – Voltmeter
- Rajkumar Sharma
Digital Panel Meter performs digital processing on or conversion and display of voltages, currents, other analog signals, and pulse signals. This project is based on popular ICL 7107 IC, which is analog to digital converter and has been designed to drive 7 segment LED display. The ICL7107 is high performance, low power, 3, 1/3 digit A/D converter. Included are seven segment decoders, display drivers, a reference, and a clock. This DPM project may be used in a wide variety of configurations Full scale reading of +/- 199.9mV (200mV)
- Supply 5V DC @ 80mA.
- Range 0 to 199.9mV (200mV)
- Low Current consumption
- Low input leakage current because external reference
- Single supply operation
- On board Jumpers for range display
- Auto Zero and auto polarity within IC
- Supply Input CN2 5V DC
- Test Voltage CN1 0-200mV
- PR1 Preset for reading calibration.
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