pulse-detecting circuit 中文意思是什麼
pulse-detecting circuit
解釋
脈沖檢測電路-
According to the principle of lower cost, higher reliability, the design completes much work. the contents of project are as follows : ( 1 ) pic micro - controller which is lower - power and lower price is the core of control device. the whole circuit realizes the functions of collecting pulse, keeping data, driving electric machinery valve, reading and writing ic, detecting power supply, sound alarm and liquid crystal display
設計依據低成本，高可靠性的原則完成了以下工作： （ 1 ）用功耗低、價格便宜的pic系列單片機作為控制裝置的核心，控制裝置的硬體電路實現了脈沖採集、數據存儲、電機閥驅動控制、 ic卡讀寫、電源檢測以及聲音報警和icd液晶顯示等功能。 -
In the design of real - time control system, the paper takes three - phase full - bridge mosfet inverter as the real - time control main circuit, and adopts a control scheme with 120 ? switching mode combined with half - bridge pulse width modulation ( pwm ), which would avoid straightthrough short of a certain bridge. phase current is detected by single current sensor ; three - phase position signals generated by position sensors could not only supply commutation information for inverter, but also be used for speed detecting based on signals " period measurement, which makes the speed sensor unnecessary. the whole control system adopts speed and current dual closed - loop control strategy in order to construct a high performance rare - earth permanent magnetic brushless dc motor ( repm bldcm ) full - digital real - time control system
在實時控制系統的設計中，本文以三相全橋mosfet逆變電路作為實時控制主電路，採用120導通方式結合半橋pwm調制的控制方案，從而有效地避免了橋臂的直通短路；本文用單電流傳感器實現對相電流的檢測，來自位置傳感器的三相位置信號不僅為逆變電路提供換相信息，而且也用於基於信號周期測量的轉速檢測，這樣就省去了速度傳感器；系統採用的是速度、電流雙閉環控制策略，力求構建高性能的稀土永磁無刷直流電動機全數字實時控制系統。
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