One kind electrically activating rotation motor and its brake mechanism with the detecting of Hall element wisdom,Refer to a medical treatment electric drill for using what medical operating,System includes a drill bit； The band dynamic model group of one coupling what the drill bit； The microcontroller of the one coupling what band dynamic model group； The Hall element of the one coupling what microcontroller； And one coupling the what Hall element battery modules； The transient current amount of the medical treatment electric drill is obtained by the Hall element,Analyze the size of the magnitude of current and voltage knots modification； It is sent at the microcontroller when the Hall element will analyze the magnitude of current with its numerical value of voltage,And the moment of bone is drilled through in medical treatment electric drill what operation,Voltage can suddenly according to raising,The microcontroller can sense rinforzando voltage at this time,Generating electric current immediately makes band dynamic model group control the drill bit be in backwards rotation,Reaching the medical treatment electric drill is in the control very stopped automatically,To assist doctor's what to assist the best opportunity for judging to stop knife when executing drilling operation,And then provide the effect of automatic buffer feed-disabling and rotation.一種以霍爾元件智慧偵測電啟動旋轉馬達以及其煞車機制，指一用於醫療手術之醫療電鑽，係包含一鑽頭；一耦接於該鑽頭之帶動模組；一耦接於該帶動模組之微控制器；一耦接於該微控制器之霍爾元件；及一耦接於該霍爾元件之電池模組；藉由該霍爾元件取得該醫療電鑽的瞬時電流量，分析電流量與電壓改變量的大小；當該霍爾元件將分析電流量與電壓量其數值傳送至該微控制器處，而該醫療電鑽於手術中鑽穿過骨骼的瞬間，電壓會急據升高，此時該微控制器會感測到突然增強的電壓，隨即產生電流使該帶動模組控制該鑽頭呈逆向轉動，達到該醫療電鑽呈自動煞停的控制，以輔助醫師於執行鑽孔手術時協助判斷停刀的最佳時機，進而提供自動緩衝停止進給及轉動之效果。
