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6ES7414-4HJ04-0AB0

6ES7414-4HJ04-0AB0

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二極管損耗
 
在傳統(tǒng)的整流中采用二極管整流，而在低電壓輸出條件下一般采用肖特基二極管整流，肖特基二極管和其他整流二極管相比具有開(kāi)關(guān)速度快，正向電壓降低的優(yōu)點(diǎn)，但是肖特基二極管的正向電壓降和整流輸出電流的大小有關(guān)，整流輸出電流越大則正向電壓降越大，有可能高達(dá)0.5～0.6V或更大，并且肖特基二極管的反向漏電流較大。
 
而同步整流技術(shù)利用導(dǎo)通電阻小，低耐電壓的場(chǎng)效應(yīng)管(MOSFET)來(lái)代替普通整流二極管。由于同步整流MOSFET具有導(dǎo)通電阻低(一般只有幾mΩ)、阻斷時(shí)漏電流小、開(kāi)關(guān)工作頻率高的特點(diǎn)，可以*的減小電源整流部分的功耗，使電源系統(tǒng)的工作效率明顯得到提高，但是在具體應(yīng)用中同步整流的實(shí)現(xiàn)要比二極管整流要復(fù)雜些。在開(kāi)關(guān)電源的低電壓大電流輸出應(yīng)用場(chǎng)合，同步整流技術(shù)有著很好的應(yīng)用前景。
 
磁性元器件的損耗
 
變壓器損耗也是模塊開(kāi)關(guān)電源損耗的重要部分，變壓器損耗主要有鐵損和銅損。鐵損是指由由變壓器的材料、形狀、工藝結(jié)構(gòu)等有關(guān)因素而引起的高頻損耗，銅損是指由變壓器繞組線(xiàn)路而引起的傳導(dǎo)損耗，為了減小變壓器的鐵損，應(yīng)選擇高頻特性好、高頻損耗小、磁芯結(jié)構(gòu)形狀合理、結(jié)構(gòu)緊湊的磁芯材料。
 
同時(shí)為了減小模塊開(kāi)關(guān)電源的體積，應(yīng)盡力提高模塊開(kāi)關(guān)電源的開(kāi)關(guān)工作頻率，如要提高到500kHz左右或更高，普通磁芯材料的損耗很大，磁芯很容易過(guò)熱而磁飽和，以至無(wú)法正常工作，所以在模塊開(kāi)關(guān)電源中必須選用磁特性?xún)?yōu)良的高頻磁芯材料。
 
磁性元器件的尺寸大小和開(kāi)關(guān)工作頻率有密切關(guān)系，在磁性元器件允許的工作頻率范圍內(nèi)，磁性元器件的尺寸和開(kāi)關(guān)工作頻率成反比，要想減小模塊開(kāi)關(guān)電源高頻開(kāi)關(guān)變壓器和電感等磁性元器件的體積，需提高開(kāi)關(guān)工作頻率。
 
同時(shí)，模塊開(kāi)關(guān)電源中高頻開(kāi)關(guān)變壓器繞組的設(shè)計(jì)也很重要，高頻開(kāi)關(guān)變壓器的繞組不僅對(duì)銅損有影響，而且關(guān)系到高頻開(kāi)關(guān)變壓器繞組間的耦合，對(duì)高頻開(kāi)關(guān)變壓器的鐵損也有影響，高頻開(kāi)關(guān)變壓器的設(shè)計(jì)和制作對(duì)模塊開(kāi)關(guān)電源的工作性能有很大的影響[1] 。

field sensors to the optionally-fault-tolerant I/A Series control station. Communication between the FBMs the I/A Series control station is via Fieldbus Communication Modules (FCMs), which interface the 2 Mbps module Fieldbus used by the FBMs with the 10 Mbps Ethernet trunk Fieldbus used by the I/A Series control station. The FBMs automatically accept communication from either communication path (A or B) of the redundant Ethernet trunk Fieldbus. Thus, if one path fails, communication is not interrupted.  100 Series I/O
V4.3 The Ethernet MESH Network (V8.x) S20 The Mesh Network represents the next revolutionary step of the I/A Series Control Network functionality, Version 8.0 release introduces unprecedented communications capability, versatility and performance to I/A Series process automation systems. The Mesh network structure provides alternate communications paths between all stations that allows for faster, more reliable communications. Standard Commercial Off-The-Shelf (COTS) switch technology and components employ the Rapid Spanning Tree Protocol (RSTP) to manage traffic paths and provide a self-healing, redundant network that can recover from multiples faults. Based on open standards, the Ethernet Mesh Network also lowers deployment costs by moving away from expensive proprietary networks to a low-cost standard network that can be easily maintained. This network also provides an infrastructure for information sharing between manufacturing and back-office systems.  
Display Manager Foxview S10 (Not stand-alone, only when upgrading workstations) Foxview software is a window into the process, providing the operator a user-friendly interface to the process. On either Windows-based or UNIX-based I/A Series workstations, you can interact with any or all of the real-time plant data, operator settings, process menus, and historical process data available in the system. The multi-window capability of the UNIX and Windows operating systems allows you to monitor the information on a process control display, while accessing other applications as specified by the environment. 
 
Integrated Control Configurator (ICC) I/A Series Configuration Component (IACC) S10 (Not stand-alone, only when upgrading workstations) The I/A Series Configuration Component provides a powerful and integrated engineering environment for designing and maintaining control strategies, creating composite display objects, and configuring the I/A Series system. The I/A Series Configuration Component (IACC) software offers substantial productivity and quality gains made possible by using its rich set of intuitive and extensible engineering tools for project engineering and lifecycle maintenance. A Control Strategy Diagram (CSD) is developed by first dragging I/A Series blocks from a palette and then dropping them onto an editing canvas. These blocks are then linked together to form a control loop by drawing a line between the appropriate output parameter of a cource block and the input parameter of the sink block. The CSD is then completed by finishing the parameter assignments using each block's property table. 
 
I/A Series Batch 5.3 I/A Series Batch 8.1 Suite See below for I/A Batch Advantage #s Foxboro's I/A Series Batch Suite is the industry's most