x
uploads/pfc.jpg

pfc Pfc.=Private First Class 〔美國...

The double closed - loops framework is applied in the pfc control circuit and the pi algorithm is adopted as system “ s control algorithm Pfc系統的控制電路采用電流環與電壓環雙閉環控制結構,控制算法采用傳統的pi算法。

The double closed - loops framework is applied in the pfc control circuit and the pi algorithm is adopted as system “ s control algorithm Pfc系統的控制電路采用電流環與電壓環雙閉環控制結構,控制算法采用傳統的pi算法。

pfd

In order to solve this problem , the power factor correction ( pfc ) pre - regulators are applied to limit the input current harmonics of the switching power supplies 為了限制諧波污染,用電設備需加入功率因數校正( powerfactorcorrection , pfc )裝置。

For increasing the switching frequency and reducing switching losses and emi noise of the pfc circuits , soft - switching technologies are adopted 在功率因數校正變換器中采用軟開關變換技術可以使開關頻率提高、降低開關損耗、并有效抑制emi 。

In the thesis the hot problems and development of pfc technology are analyzed farther . it establishes good foundation for future research 本文還分析了功率因數校正技術的熱點問題和發展方向,為今后的研究打下了良好的基礎。

In the thesis the hot problems and development of pfc technology are analyzed farther . it establishes good foundations for future research 本文還分析了功率因數校正技術的熱點問題和發展方向,為今后的研究打下良好的基礎。

The paper analyzes the contradiction between static and dynamic performances in pfc , then introduces several strategies for resolving these problems 分析了pfc中存在的穩態性能與動態性能的矛盾,介紹了解決此矛盾的若干方法。

The experimental result shows the control scheme of the paralleling of pfc module work reliable with good performance and is easy to realize in practice 樣機實驗結果表明,并聯控制方案工作可靠、性能優良,工程上易于實現。

The double closed - loops framework is applied in the pfc control circuit and the pi algorithm is adopted as system “ s control algorithm Pfc系統的控制電路采用電流環與電壓環雙閉環控制結構,控制算法采用傳統的pi算法。

Results from our laboratory suggests that the pfc provides an infrastructure for the rapid synthesis of the diverse information 從我們的實驗結果推測,額前皮質能在多樣化的訊息下,提供一個迅速整合的基本結構。

Aiming at this problem , this paper discusses a systematic method for deriving basic configurations that achieve pfc and voltage regulation 本文針對這個問題,提出了一個系統的分析方法來構建pfc的拓撲結構。

Recently , internal and overseas investigators are developing single - stage pfc circuit , which has higher pf and lower price 現在國內外正在開發研究單級功率因數校正電路,具有很高的功率因數,且成本低。

Nowadays , power factor correction ( pfc ) technique and soft - switching pwm technique are both widely researched 功率因數校正( pfc )技術和軟開關pwm技術都是當前電力電子技術研究的熱點問題。

This paper analyze the necessary condition of building hybrid pfc , the effect of power spit and control mode 本文分析了混合pfc的構成的必要的條件、能量分流對其的影響以及控制和運行模式。

How to get the control parameters is analyzed in details and the experimental results are displayed 給出了雙環控制設計的詳細過程,建立了基于dsp控制的pfc電源,并進行了實驗研究。

So a new predictive control strategy is proposed to solve the above mentioned problems in digital controlled pfc 因此,提出一種基于預測算法的pfc控制策略,并對算法進行建模。

Nowadays pfc inverters which are being used in many fields play an important role in the life Pfc電源是電力電子技術的重要組成部分,并已經在越來越多的領域得到應用。

Preliminary study on mechanical properties of soil was done by pfc numerical simulation 通過顆粒流數值模型試驗,從細觀力學角度對土的工程力學特性作了初步的研究。

This digital inverter amplifier ' s dc power is supplied by an ac / dc with pfc circuit controlled by 3854 前級直流電壓由3854芯片控制pfc后的ac dc提供。