Microchip Technology Inc

ATM90E32AS Demo Board

Part Number: ATM90E32AS-DB

ATM90E32AS Poly-Phase Energy Metering Demo is used for the demo and testing of ATM90E32AS (poly-phase energy metering AFE chip), which can sample poly-phase voltage and current, meter active/reactive/apparent/fundamental/harmonic energy and output these energy pulses accordingly, as well as measure parameters such as voltage, current and power.

The AFE Control Board - SAM4C communicates with and controls the AFE board, providing easy access to evaluate the energy metering chips.

    AFE Board

    • ATM90E32AS: poly-phase energy metering AFE chip
    • Voltage sampling: resistor divider network
    • Current sampling: Current Transformer (CT) or Rogowski Coil for current sensor
    • Energy pulses
      • Active energy pulse indicator and isolated output
      • Reactive energy pulse indicator and isolated output
      • Apparent energy pulse indicator and isolated output
      • Fundamental energy pulse indicator and isolated output
      • Harmonic energy pulse indicator and isolated output
    • One communication connector
    • Crystal: 16.384MHz
    • Power supply for demo board
      • AC 100V-240V line voltage input
      • DC 9V input
      • External 3.3V input

    Control Board

    • SAM4C microcontroller
    • Two possible power sources
      • External DC9V
      • External 3.3V from the daughter board
    • Digital I/O
      • Five mechanical buttons
        • On reset button
        • Two switch buttons for display (including forward and backward button)
        • Two wake up buttons (one is FWUP, the other is TMP0)
      • One extension header
      • One communication connector​
    • Segment LCD display
    • Five types of communication interfaces
      • One USB
      • One RS485
      • One RS232
      • One Infrared Radiation (IR)
      • One Optical Infrared Radiation (OIR)
    • One EEPROM