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- DC motor speed to achieve the first to convert AC DC, which requires rectification circuit. 要实现直流电机调速首先要把交流电转换为直流，这就需要整流电路。
- PWM microelectronic c ontrol technique and AC DC AC DC invert technique with MOSFET half bri... 具有短接限流、限时衰减和恒流、恒压相结合的特点。
- In the system,Intel 80C196MC is used as control center and IPM is used as an intelligent power device in the main circuit of AC DC AC voltage type inverter. 该系统以80C196MC为控制核心，采用IPM智能功率模块为功率元件，组成了交?直?交电压型逆变器主回路。
- Violent power oscillation will occur in independent AC DC combined power supply and may hamper the normal operation when the parameters of the generator and the DC motor load do not match. 交直流一体独立发电机系统在发电机和负载参数不满足一定条件时 ,会发生发电机和反电势负载之间的大幅度功率振荡 ,破坏系统的正常工作。
- A Novel PWM ZVS AC DC Converter with PFC 新颖的含PFC的PWM ZVS AC-DC变换器
- AC DC dual purpose electric motor vehicl 交直两用电车
- Analysis and Design of a 500W AC DC Unity Power Factor Converter 500W 单位功率因数 AC-DC 变换器分析与设计
- Application of IGBT clement in mine DC locomotive speed - adjusting control IGBT元件在煤矿直流电机车调速控制中的应用
- A locomotive pounded down the railway track. 一辆机车沿着铁道隆隆地驶去。
- Automatic exchange for DC and AC supply. 直流电源与交流供电能自动转换。
- What is the output voltage of you system? DC or AC? 您要求系统的输出电压多少，直流还是交流?
- Hands and feet are locomotive organs. 手和脚是运动器官。
- B:These are for one hundred volts,AC and DC. 这些适用一百伏特的电压，交流电和直流电都可以。
- How many coaches can that locomotive pull? 那个火车头能拉多少节车厢?
- A rectifier is a device which changes AC to DC. 整流器是一种将交流电转变为直流电的装置。
- These are for one hundred volts,AC and DC. 这些适用一百伏特的电压，交流电和直流电都可以。
- AC, DC or Airmotor power options. 有交流、直流和气动马达动力选件。
- The line AB cuts the line DC at the point E. AB线和DC线在E点相交。
- Note that Ohm's law holds true for DC as well as for AC circuits. 要注意，欧姆定律不仅适用于直流电路，对交流电路也同样适用。
- The driver excused the locomotive from the train. 火车司机使火车头与火车分开。
