switching waveform 中文意思是什麼
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Zero - voltage turn - on and zero - voltage turn - off in lagging arm and leading arm of soft - switching topology, working waveform of power transformer and process of rectifier and transition are presented in detail. the influence of resonant inductance of the power transformer, resonant capacitor and variation of load to the process of soft - switching are given
主要對軟開關滯后橋臂和超前橋臂的零電壓開通、關斷過程，功率變壓器的工作波形及整流換流過程進行了詳細的模擬分析，並重點討論了逆變器的諧振電感、諧振電容以及負載變化對軟開關過程的影響。 -
The conventional switching power supply usually use a diode rectifier followed by a bulk capacitor to convert ac voltage to dc voltage, resulting in the pulsating waveform of the input ac line current, low power factor ( generally 0. 65 ) and high harmonic line current
傳統的開關電源設備通常採用二極體橋來進行整流和一個較大的電解電容來進行濾波以實現輸入電壓的交直流轉換，導致輸入電流為一個很窄的脈沖波並含有較多的諧波分量，功率因數變低（通常只有0 . 65 ） 。 -
Lastly, the hardware circuit of digital acquisition system is designed, and the programs for system controlling and adaptive filter arithmetic are designed. eeg can be observed clearly after d / a switching. at the same time, eeg data is transmitted to the upper machine by serial communication, so we can see eeg waveform by virtual instrumentation
在此基礎上，針對固定濾波器存在的問題，提出了將自適應濾波技術應用於腦電測試中，並進行了理論研究和模擬研究，設計出了能較好地濾除50hz強干擾的自適應陷波濾波器和去基線漂移的自適應濾波器。 -
People can easily design the hysteresis current control hardware circuit, but the switching frequency is variable which makes us difficult the design the output filter, moreover the output waveform is not good. the space vector modulation techniques, by selecting the zero vector properly, it can reduce the harmonic content of the output voltage, so it has become a popular control method
滯環電流控制的硬體電路設計簡單，但存在開關頻率不固定，輸出濾波器設計困難，輸出波形質量差，空間矢量控制（ svm ）技術具有較高的電壓利用率，且通過對零矢量的合理控制可以降低諧波含量或降低開關損耗，因此是一種較好的控制方法。 -
The twelve kinds of modes and equivalent circuits within one high frequency switching period are carefully analyses. by using the state - space averaging approach, the converter ' s averaging model is presented, the output characteristic curve and design criterion of key circuit parameters such as output voltage, filtering inductance, common conduction time, uni - polarity spwm waveform ' s duty cycle etc are given
詳細分析了這類變換器在一個高頻開關周期內的十二個工作模式及其等效電路。採用狀態空間平均法建立了變換器平均模型，獲得了輸出電壓、濾波電感電流、共同導通時間、單極性spwm波占空比等關鍵電路參數的設計準則和變換器的外特性曲線。 -
The electronic pulse waveform of linear, non - linear and the critically transiting switching modes outputted from the si - gaas pcss ' s was observed and measured. especially, we repeatedly measured the bias field thresholds and lock - on field of the critical transiting mode from the linear to non - linear state
作者測試了半絕緣gaas光電導開關在線性、非線性以及從線性到非線性過渡的臨界狀態模式下輸出的電脈沖波形，特別是反復測量了開關在臨界狀態下的偏置電場閾值和lock - on電場強度。 -
The typical performance characteristics include : load transient response, efficiency, output voltage ripple, output voltage vs. load current, switching waveform, and soft - start time. the simulation results indicate that the ic has achieved the expectation, both function target and electrical characteristics. although there are unavoidable disadvantages of the project, it is a worthwhile and valuable experience
在完成系統原理分析、總體架構設計及子電路設計的基礎之上，還應用hspice對各個子電路和整體電路進行了模擬驗證，其中，整體模擬指標包括:軟啟動時間、瞬態響應時間、轉換效率、輸出電壓與負載的關系、輸出電壓紋波、開關波形。 -
First, this paper analyzes the principle of the snubber circuit of igbt inverter in detail, and the parameter of the snubber circuit components are derived. it also analyzes the twice voltage peak of the snubber circuit during the period of turnoff and discusses the impact of the parameter of the snubber circuit components on the waveform of turnoff. the reference materials for the snubber circuit design are proivided theoretically in this paper. futhermore. it analyzes a soft switching circuit that suits pulse power supply
本文首先從理論上詳細分析了igbt逆變橋緩沖電路的工作原理，推導出緩沖電路各元件的參數計算公式，分析了緩沖電路在關斷過程中的兩次電壓尖峰，討論了緩沖電路各元件參數對關斷電壓波形的影響，為緩沖電路的設計提供了理論上的依據。
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