circuit switching operation 中文意思是什麼
circuit switching operation
解釋
線路交換操作-
A novel phase - shifted zero - voltage and zero - current switching pwm dc / dc full - bridge converter is presented in this thesis, which is based on the groundwork of summarization of the development of power electronics in recent years and lucubration in theoretical basis of modern high frequency soft switching power convert technique and analysis of operation principle, characteristic of the circuit and inherent drawbacks of the traditional phase - shifted zero - voltage switching pwm dc / dc full - bridge converter
本文在對近年來電力電子學科的發展高度綜述和對現代高頻軟開關功率變換技術理論基礎深入研究的基礎上，對傳統的移相控制zvspwmdc dc全橋變換器的工作原理、電路特性、存在的缺點進行了分析，在此基礎上提出了一種改進型的移相控制zvzcspwmdc dc全橋變換器。 -
Firstly. operation principle of induction heating is introduced and the actuality of the power supply for induction heating is summarized. then, the scheme of structure of the power supply is established : uncontrolled rectifier and buck chopper constitute dc circuit. in this part, operation principle of a kind of soft switching buck chopper is presented mainly and the conclusion that the power semiconductor devices operate in soft switching is also illustrated by analysing the operation principle of all stages ; series resonant inverter is selected as inverter circuit via comparing the advantage and shortcoming of parallel resonant and series resonant. moreover. the work principle of series resonant inverter is analysed and the calculating method of the best dead time is put forward as well
文中首先介紹了感應加熱電源的工作原理並綜述了國內外的研究現狀。接下來分析並制定了電源主電路的構成方案：在對比幾種功率調節方式的基礎上選擇了不控整流加斬波調壓作為直流部分。在這部分里，重點研究了一種軟開關buck變換器，通過分析各階段的工作原理說明了開關器件如何工作在軟開關狀態；對于逆變器部分，在比較了串、並聯逆變器優缺點的基礎上選擇了串聯諧振逆變器，並詳細分析了串聯逆變器的工作原理，提出了最佳死區的計算方法。 -
Schottly barrier diode can be used as rectifying and continuous - flow unit in high frequency rectifying, switching and holding circuit, yet reducing the power consumption and circuit noise, enhancing the circuit efficiency and operation frequency
肖特基二極體在高頻整流、開關電路和保護電路中作為整流和續流元件，可以大幅度降低功耗，提高電路效率和使用頻率，減少電路噪聲。 -
Explicit description of main circuit topology, operation principle, characteristic of the circuit of the novel phase - shifted zero - voltage and zero - current switching pwm dc / dc full - bridge converter as well as the simulation analysis with the pspice software is proposed
對移相控制zvzcs下pwm的dc dc全橋變換器的拓撲結構、工作原理和電路特性作了深入的闡述，採用pspice軟體進行了計算機的模擬分析。 -
In this paper, a three phases high - voltage power mos gate drive integrated circuit has been researched and designed successfully. it is a typical spic, which could be widely used in high power motor control and switching power supply applications. the design goal of the circuit are v0ffset ( max ) is 500v, ia ( m ~ ) is 1 a, the highest frequency of operation ( f ( ~ x ) ) is 100khz
本文研製成功了一種可廣泛用於大功率電機控制、開關電源等應用中的spic電路?三相高壓功率mos柵驅動集成電路，其設計指標要求為：最高偏置電壓（ voffset （ max ） ）為500v 、最大輸出電流（ i _ o （ max ） ）為1a 、最高工作頻率為100khz 。 -
Zero - voltage - switching three - level dc / dc converter in the thesis is developed and manufactured, and the basic operation principle and its control strategies of three - level zero - soft - switch pwm dc converter are discussed. hardware design of main system and control system is accomplished by circuit design software protel99se. the difference of leading switches and lagging switches to realize the zero - voltage switching and the reason of duty - cycle loss is emphatically argued
本課題通過三電平零電壓開關直流變換器（ zero - voltage - switchingthree - leveldc / dcconverter ）的研製，探討了三電平軟開關pwm直流變換器的基本工作原理及其控制策略，利用電路設計軟體protel99se完成了控制系統及主系統的硬體設計。 -
In this paper, the operation principle and the equivalent circuit structures in different periods of time of the dual - bridge zero - voltage - switching ( zvs ) bi - directional dc - dc converter are analyzed. the condition of achieving soft - switched is derived
文中介紹了雙向半橋零電壓（ zvs ）變換器的工作原理和不同時間段的等效電路圖，以及給出了實現軟開關的條件。
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