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- DC motor speed to achieve the first to convert AC DC, which requires rectification circuit. 要實(shí)現直流電機調速首先要把交流電轉換為直流，這就需要整流電路。
- PWM microelectronic c ontrol technique and AC DC AC DC invert technique with MOSFET half bri... 具有短接限流、限時(shí)衰減和恒流、恒壓相結合的特點(diǎn)。
- 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. 該系統以80C196MC為控制核心，采用IPM智能功率模塊為功率元件，組成了交?直?交電壓型逆變器主回路。
- 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. 交直流一體獨立發(fā)電機系統在發(fā)電機和負載參數不滿(mǎn)足一定條件時(shí) ,會(huì )發(fā)生發(fā)電機和反電勢負載之間的大幅度功率振蕩 ,破壞系統的正常工作。
- rolling stock AC-DC changeover method 溢座式交直流切換方法
- A Novel PWM ZVS AC DC Converter with PFC 新穎的含PFC的PWM ZVS AC-DC變換器
- AC DC dual purpose electric motor vehicl 交直兩用電車(chē)
- Analysis and Design of a 500W AC DC Unity Power Factor Converter 500W 單位功率因數 AC-DC 變換器分析與設計
- The fox went to ground under a rocky escarpment. 狐貍鉆進(jìn)了石崖下面的洞里。
- Do not apply more than 250V(AC or DC) between any input and earth ground. 任何被測試對象對地電壓，包括直流和交流，不能超過(guò)250V。
- The ground was covered with ferns. 地面上長(cháng)滿(mǎn)了羊齒植物。
- He lifted a pail of water from the ground. 他把一桶水從地上提了起來(lái)。
- Rachel who died last week was still above ground. 雷切爾上星期去世，現在還沒(méi)安葬。
- This car really comes into its own on rough ground. 這輛汽車(chē)在顛簸的路上才真正顯示出它獨特的性能。
- They put some wreathes on the ground. 他們把一些花環(huán)放在地上。
- The ground was ploughed and planted with corn. 地翻耕后種上了玉米。
- He takes his ground on intuition. 他的意見(jiàn)是憑直覺(jué)。
- We need a mechanical digger to level the ground. 我們需要一臺挖掘機來(lái)平整土地。
- A good hot summer could dry the ground out. 一個(gè)炎熱的夏天可以將大地干透。
- Bob pecked at the hard ground with a pickaxe. 鮑勃用鶴嘴鋤在堅硬的地面上挖掘。
