驅動板
L298N
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L298N示意圖
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用途
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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
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用途
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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
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用途
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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
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用途
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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
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用途
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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
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用途
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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
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DIT 團隊自己所 layout 的板子
:::success
**升壓塔**
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