Electric Scooter

The demo for the electric scooter is based on a commercial product and implemented by NM1244. NM1244 integrates numerous popular functions used in motor control, such as OPA/ ACMP/ DAC/ CCAP. As a result, it helps users save the PCB space, lower the BOM cost and extend the control ability. Furthermore, users can quickly transfer the software/hardware to their product based on the demo system.

  • Features
    24V/ 15A/ 360W
    2-R FOC current control
    - Supports low speed detection (down to 40 rpm for 20 poles motor)
    - No extra OPA/ ACMP needed
    - 12-bit DAC provides high resolution for negative input of ACMP
    - Electric brake
    - OC/ OV/ LV/ Block protection
  • Specifications
    NM1244 (32-bit Arm® Cortex®-M0)
    - Up to 60 MHz operating frequency
    - Operating voltage: 2.4V to 5.5V
    Operating temperature: -40℃ to 105℃
    Two sets of 12-bit ADC with 20 channels
    24-bit Timer
    OPA/ ACMP/ DAC inside
    - High immunity: 6 kV ESD and 4 kV EFT
    - Power down current: 1 μA
  • System Block Diagram
    Electric Scooter
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