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Re: full bridge ?
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版主
 
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forward & reverse 在 Full-Bridge 模式下是控制直流馬達的正反轉，轉速控制則是透過 Modulation (PWM) 的控制。
If CCP1M<3:2> = 11: 00 = Single output; P1A modulated; P1B, P1C, P1D assigned as port pins 01 = Full-Bridge output forward; P1D modulated; P1A active; P1B, P1C inactive 10 = Half-Bridge output; P1A, P1B modulated with dead-band control; P1C, P1D assigned as port pins 11 = Full-Bridge output reverse; P1B modulated; P1C active; P1A, P1D inactive ; QB 送 PWM 調轉速，QC 送 Hi 打開晶體。QD 送 Low 關閉電晶體。 請看一下附件的圖示說明: Attach file:  (0.00 KB)
發表於: 2008/9/3 13:02
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Re: full bridge ?
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資深會員
 
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SMPS 系列應該可以, 不過全橋有分單極性跟雙極性, 雙極性是不需要切換的.
發表於: 2008/9/2 18:33
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Thanks,
Edward Lee |
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full bridge ?
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新會員
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我在寫full bridge 在規格書P153 寫CCP1CON<7:6>
Full bridge forward 01 Full bridge reverse 11 因為full bridge 是 forward & reverse 本來就是一直在連續交 互動作 我需要再寫個迴圈一直讓 01 11一直變ㄇ? 還是有什預設 可以怎設定讓他自己跳ㄇ?
發表於: 2008/9/2 16:32
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