亚洲欧美第一页_禁久久精品乱码_粉嫩av一区二区三区免费野_久草精品视频

蟲蟲首頁| 資源下載| 資源專輯| 精品軟件
登錄| 注冊

servomotors

  • servomotors are available as AC or DC motors. Early servomotors were generally DC motors because the

    servomotors are available as AC or DC motors. Early servomotors were generally DC motors because the only type of control for large currents was through SCRs for many years. As transistors became capable of controlling larger currents and switching the large currents at higher frequencies, the AC servomotor became used more often. Early servomotors were specifically designed for servo amplifiers. Today a class of motors is designed for applica-tions that may use a servo amplifier or a variable-frequency controller, which means that a motor may be used in a servo system in one application, and used in a variable-frequency drive in another application. Some companies also call any closed-loop system that does not use a stepper motor a servo system, so it is possible for a simple AC induction motor that is connected to a velocity controller to be called a servomotor.

    標簽: motors servomotors servomotors available

    上傳時間: 2014-08-10

    上傳用戶:源碼3

主站蜘蛛池模板: 白玉县| 凯里市| 淮阳县| 武乡县| 余干县| 宾阳县| 清远市| 莱阳市| 青海省| 秦皇岛市| 新邵县| 泾源县| 信阳市| 鄄城县| 乌拉特后旗| 伊宁县| 凤山县| 文安县| 五华县| 金溪县| 博爱县| 新田县| 泽普县| 泰州市| 大方县| 五华县| 甘孜县| 集贤县| 石柱| 滦南县| 九江市| 旌德县| 忻州市| 荃湾区| 普格县| 宁明县| 揭西县| 留坝县| 西贡区| 阿克| 台东市|