驅動板

L298N

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L298N示意圖


  • 用途

    • 用於控制直流有刷馬達

  • 特色

    • 可獨立控制兩個馬達
    • 方便且容易使用
      • 有 PWM 輸出腳位可控制馬達轉速
      • 控制馬達正反轉INA, INB(I/O 控制信號輸入)
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        容易有過熱的問題,較不適合用於長時間運作的地方(如:底盤)

跳線(jumper)

L298N示意圖上有個jumper,其作用便是使原本 “斷路” 的兩條腳位變成 “短路”,不同的跳線可使晶片達到不同的功能,如5V輸出

同理,AB通道啟用也是一種跳線,拔除可以啟用PWM控制

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跳線示意圖

VNH5019


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VNH5019

  • 用途

    • 用於控制直流有刷馬達
  • 特色

    • 可獨立控制兩個馬達
    • 具有高功率、高精度
    • 有內置晶片保護功能,可以防止馬達或驅動板過熱而損壞
    • DIT 自己所 layout 的 PCB 也是配合此晶片運作

A4988

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A4988

  • 用途

    • 用於控制步進馬達
  • 特色

    • 板子上有電位器,可用來調整驅動最大電流
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      有溫度升高的問題,一般來說與負載較無關,和驅動電壓及電流有較大的關係

TMC2209

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TMC2209

  • 用途

    • 用於控制步進馬達
  • 特色

    • 精度較高、更平滑的控制
    • 可減少馬達工作時的噪音
    • 可從軟體及硬體端進行電流限制
    • 具有電流動態調整功能,可根據馬達需求自動平衡電流

無刷電變/電子調速器(ESC)

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ESC

  • 用途

    • 用於控制無刷馬達
  • 特色

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      須注意電池限制及最大電流輸出

繼電器 (Relay)

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繼電器

  • 用途

    • 常用於控制馬達正反轉,氣動裝置
  • 特色

    • 可控制的自動開關
      • 具有常開、常閉、COM端的電子開關
      • 由訊號線的 HIGH, LOW 控制其開關

額外閱讀

PCB板

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DIT 團隊自己所 layout 的板子

:::success **升壓塔** ---