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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
- His last words are still ringing in my ears. 他的临终遗言还在我耳边回响。
- He ran off, their jeers ringing in his ears. 他一跑了之，耳边仍回响著他们的冷嘲热讽。
- She had the sapphire set in a gold ring. 她把那枚蓝宝石镶在金戒指上了。
- The diamond ring dazzled with brilliancy. 这只钻石戒指闪耀夺目。
- 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?
- She was jarred awake by the ringing telephone. 她被电话铃声惊醒。
- 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。
- He awoke to the ringing of an electric bell. 他随著一阵电铃的响声醒来。
- Can you hear the morning bell ringing? 你能听到晨钟响吗?
- 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。
- Who can be ringing us at this late hour? 谁能在这麽晚的时间给我们打电话呢?
- 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。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
