Air Purifier

The air purifier demo is based on a commercial product and implemented by NM1244. NM1244 integrates numerous popular functions used in motor control, such as OPA/ACMP/DAC. It helps users save PCB space, lower the BOM cost, and tuning. Based on the demo system, user can transfer the software/hardware to their product more easily.

  • Features
    24V/ 2.5A/ 50W
    Supports for direct input/VSP
    - Speed control with 1-R FOC
    - No extra OPA/ACMP needed
    - 12-bit DAC provides high resolution for negative input of ACMP
    - No extra gate driver IC needed
    - OC/ OV/ LV/ Block protection
  • Specifications
    NM1244 (32-bit Arm® Cortex®-M0)
    - Operating frequency: up to 60 MHz
    - Operating voltage: 2.5V to 5.5V
    High immunity: 4 kV EFT
    Operating temperature: -40℃ to 105℃
    OPA/ ACMP/ DAC inside
    Two sets of 12-bit ADC with 20 channels
    - Power down current: 1 μA
    - High I/O sink current capability
  • System Block Diagram
17_Nuvoton-Air Purifier-1 17_Nuvoton-Air Purifier-2
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