In a dc-dc converter with a given input voltage, the average output voltage is controlled by controlling the switch on and off durations (ton and toff).
在一个给定了输入电压的直流-直流变流器中，输出的平均电压是通过控制开关的导通和关断时间来控制的。
You can power 4 outlets on and off using a convenient top-panel button, or connect a DC remote trigger to toggle the switched outlets automatically (cable provided).
您可以功率4点上下车方便使用前面板按钮，或连接远程触发直流切换开关插座自动(电缆提供)。
This paper research a soft-switch DC pluse power supply. The turning on of main switch can achieve ZCS, and turning off is ZVS.
脉冲电源的形式和用途有多种，文章研究了一种软开关直流脉冲电源，主开关管可以实现零电流开通、零电压关断；
In a speech in Washington, DC, on September 15th, Mr Boehner flatly declared tax increases "off the table".
9月15日，华盛顿，博纳在一个演讲中断言增税是不可能的。
In the good old days, we could think of digital signals as though they were DC signals that turned on and off with logic-highs and logic-lows.
在过去的低速率的美好日子里，我们可以把数字信号想象成像直流信号一样，逻辑高时开，逻辑低时关。
Through the analysis on the turn-on and turn-off transience of NPC three-level MVDs, the corresponding mathematical models are developed, based on which the DC-Link choke value is deduced.
通过分析三电平结构的开关暂态过程，建立了变频器暂态开关数学模型，并设计了直流环节部分的限流电抗。
The method is based on SVPWM for off-line identification though the DC experiments, single-phase experiments and no-load experiment to accomplish;
该方法是基于SVPWM进行参数离线辨识，通过直流试验、单相交流试验和空载试验来实现；
The method is based on SVPWM for off-line identification though the DC experiments, single-phase experiments and no-load experiment to accomplish;
该方法是基于SVPWM进行参数离线辨识，通过直流试验、单相交流试验和空载试验来实现；
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