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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
- Five mechanical buttons
- 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
Overview
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.
