power switching

基本解释

When we use low-dropout switching power switching converter to reduce positive input voltage, we usually need an extra low- power negative output voltage.
在採用降壓開關功率開關轉換器降低正輸入電壓的同時，通常還需要一個額外的低功率負輸出電壓。
The main circuit is a half bridge series inverter and MOSFET is used for its power switching devices. PWM chip TL494 is the nucleus of the control circuit.
主電路採用半橋式結搆，場傚應琯作爲功率開關元件，集成芯片TL 494作爲其控制電路的核心。
Two lilong adjacent to Baoxing Cun have been demolished, one to make room for an elevated highway, the other for a power switching station to light up Expo 2010.
寶興村附近的兩個裡弄已經被拆除，一個爲高架公路騰出空間，另一塊地則用來建設服務於2010世博會的變電站。

Until the late 1950s, these producers maintained that power switching had to be done mechanically.
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With more and more U.S. power plants switching from coal to natural gas, the decline is likely to continue and the reductions are likely to be permanent.
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