Switching circuits

Xem 1-20 trên 111 kết quả Switching circuits
  • Long distance transmission is typically done over a network of switched nodes Nodes not concerned with content of data End devices are stations Computer, terminal, phone, etc. A collection of nodes and connections is a communications network Data routed by being switched from node to node

    ppt34p trada85 18-01-2013 37 5   Download

  • Message switching: In message switching no physical path is established in advance between sender and receiver. Instead, it is sent and stored in the first switching office (i.e., router) and then forwarded later, one hop at a time. Each block is received in its entirety, inspected for errors, and then retransmitted. Telegrams were message switching. This technique needs routers with big buffers and also a single block may tie up a router- router line for minutes, useless for interactive traffic. Packet switching gets round this problem. ...

    pdf7p doxuan 13-07-2009 196 38   Download

  • The control system for a star delta contactor is sequence circuit. The star contactor and delta contactor are interlocked relative to each other with a ‘either - or’ condition. Switching from ‘star’ to ‘delta’ is done automatically by means of a time relay. In the circuit above, the star contactor is energised first, then the mains contactor. Circuits in which the mains contactor is energised first, followed by the star contactor, are also common.

    ppt14p vanquynh261 09-10-2010 122 32   Download

  • The first electronic device to be introduced is called the diode. It is the simplest ofsemiconductor devices but plays a very vital role in electronic systems, having char-acteristics that closely match those of a simple switch. It will appear in a range of ap-plications, extending from the simple to the very complex.

    pdf934p anhhoang_944 19-02-2014 51 22   Download

  • Tham khảo tài liệu 'chapter 16: power circuits: switching and amplifying', kỹ thuật - công nghệ, điện - điện tử phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf20p xinpha 06-10-2011 63 12   Download

  • Switches: hardware and/or software devices allowing temporary connections between two or more devices...

    ppt38p nguyentiendtvt07 02-11-2010 63 11   Download

  • Principles Circuit switching designed for voice Resources dedicated to a particular call Much of the time a data connection is idle Data rate is fixed Both ends must operate at the same rate

    ppt51p doanhung_dtvtk10 19-03-2013 47 8   Download

  • Similarities between ATM and packet switching Transfer of data in discrete chunks Multiple logical connections over single physical interface In ATM flow on each logical connection is in fixed sized packets called cells Minimal error and flow control Reduced overhead Data rates (physical layer) 25.6Mbps to 622.08Mbps

    ppt62p trada85 18-01-2013 36 5   Download

  • A circuit-switched network consists of a set of switches connected by physical links. A connection between two stations is a dedicated path made of one or more links. However, each connection uses only one dedicated channel on each link. Each link is normally divided into n channels by using FDM or TDM.

    ppt46p trada85 22-01-2013 38 5   Download

  • [ Team LiB ] 11.1 Switch-Modeling Elements Verilog provides various constructs to model switch-level circuits. Digital circuits at MOS-transistor level are described using these elements.[1] Array of instances can be defined for switches.

    pdf7p sieukidvn 16-08-2010 64 4   Download

  • [ Team LiB ] 11.2 Examples In this section, we discuss how to build practical digital circuits, using switch-level constructs. 11.2.1 CMOS Nor Gate Though Verilog has a nor gate primitive, let us design our own nor gate,using CMOS switches.

    pdf6p sieukidvn 16-08-2010 39 3   Download

  • Data transmitted in small packets Typically 1000 octets Longer messages split into series of packets Each packet contains a portion of user data plus some control info Control info Routing (addressing) info Packets are received, stored briefly (buffered) and past on to the next node Store and forward

    ppt50p trada85 18-01-2013 23 3   Download

  • Ebook Switching present of: Devices Safety Switches, Enclosed Circuit Breakers, Enclosed Rotary Disconnects. This book helps you learn an reseach better.

    pdf128p nguyenthai_thinh 07-10-2014 17 2   Download

  • GSM

    GSM (Global System for Mobile Communications), is a standard set developed by the European Telecommunications Standards Institute (ETSI) to describe technologies for second generation digital cellular networks. Developed as a replacement for first generation analog cellular networks, the GSM standard originally described a digital, circuit switched network optimized for full duplex voice telephony. The standard was expanded over time to include first circuit switched data transport, then packet data transport via GPRS (General Packet Radio Services)....

    pdf67p huemanvdoc 25-11-2009 453 250   Download

  • Không thể route giữa các mạng WAN thông qua chuyển mạch gói (switched circuits) hoặc đường điện thoại (dialup lines). Khả năng route này chỉ thực hiện được khi có WAN card (ví dụ T1 hay FrameRelay

    doc3p phanvanhuong12 11-04-2011 194 76   Download

  • .Electric Power Engineering Handbook Second Edition Edited by Leonard L. Grigsby Electric Power Generation, Transmission, and Distribution Edited by Leonard L. Grigsby Electric Power Transformer Engineering, Second Edition Edited by James H. Harlow Electric Power Substations Engineering, Second Edition Edited by John D. McDonald Power Systems Edited by Leonard L. Grigsby Power System Stability and Control Edited by Leonard L. Grigsby ß 2006 by Taylor & Francis Group, LLC. .The Electrical Engineering Handbook Series Series Editor Richard C.

    pdf379p nguyenthai_thinh 21-03-2013 117 58   Download

  • Cisco enterprise customers have in the past relied heavily upon traditional WAN/MAN services for their connectivity requirements. Layer 2 circuits based on TDM, Frame Relay, ATM, and SONET have formed the mainstay of most low-speed WAN services. More recently, high-speed MAN solutions have been delivered directly over Layer 1 optical circuits, SONET, or through the implementation of point-to-point or point-to-multipoint Ethernet services delivered over one of these two technologies.

    pdf218p batoan 11-08-2009 118 48   Download

  • CapSense. Beauty is more than skin deep. PSoC®-based Capacitive Touch Sensing Maximize the design flexibility and integration of Cypress’s PSoC solution to create a stylish, durable interface. CapSense replaces buttons, switches, sliders and other mechanical inputs in your product. CapSense enables: Fast changes to your design at any stage from concept through production. CapSense is not a fixed-function ASIC or module

    pdf10p thachsaudoi 22-12-2009 73 24   Download

  • Nonlinear Analysis 6.002 Fall 2000 Lecture 6 1 .Review Discretize matter m1 m2 m3 m4 m5 KVL, KCL, i-v Composition rules Node method Superposition Thévenin, Norton LCA any circuit linear circuits 6.002 Fall 2000 Lecture 6 2 .Review Discretize value Digital abstraction Subcircuits for given “switch” setting are linear! So, all 5 methods (m1 – m5) can be applied VS RL A =1 B =1 VS RL C A B C RON RON SR MOSFET Model 6.002 Fall 2000 Lecture 6 3 .Today Nonlinear Analysis Analytical method based on m1, m2, m3 Graphical method Introduction to incremental analysis 6.

    pdf11p thachcotran 04-02-2010 93 18   Download

  • Power Conversion Circuits and Diodes 6.002 Fall 2000 Lecture 24 1 .Power Conversion Circuits (PCC) PCC 110V 60Hz + – 5V DC solar cells, battery 3V DC PCC + – 5V DC DC-to-DC UP converter Power efficiency of converter important, so use lots of devices: MOSFET switches, clock circuits, inductors, capacitors, op amps, diodes R Reading: Chapter 16 and 4.4 of A & L. 6.002 Fall 2000 Lecture 24 2 .First, let’s look at the diode iD + vD – v ⎛ VD ⎞ ⎜ e T − 1⎟ iD = I S ⎜ ⎟ ⎠ ⎝ I S = 10 −12 A VT = 0.

    pdf20p thachcotran 04-02-2010 91 15   Download


Đồng bộ tài khoản