cisco vpn 3000 concentrator power supply

... f V V V V I C ) ( 3536 0 ) Δ = Trang 49Basic PushBasic Push Pull Power Converter Pull Power Converter Operates as a class D power amplifier Output rectifier converts the sq are a e to dc Each ... Trang 1Power Supply Block DiagramTrang 2Half Wave Rectifier Wave Rectifier 7 0 V 0 1 V V C R V 0048 0 F L ... to dc Each transistor must withstand 2xVin plus Trang 50Basic HalfBasic Half Bridge Power Converter Bridge Power Converter Each transistor “sees” approx Vin Full flux reversal in the transformer

Ngày tải lên: 13/12/2013, 23:15

... the power. .. which the power supply must operate This then forms the basis of the design specification of the power supply 1.2 Power System Organization The organization of the power ... Techniques to Improve Switching Power Supply Efficiency 4.1 Major Losses within the PWM Switching Power Supply 135 4.1.1 The Major Parasitic Elements within a Switching Power Supply 142 4.2 Techniques ... Developing the Power System Design Specification 5 1.5 A Generalized Approach to Power Supplies: Introducing the Building-block Approach to Power Supply Design 8 1.6 A Comment about Power Supply Design

Ngày tải lên: 18/04/2014, 12:28

... 7.1 Power failure characteristic Trang 4 Equipment for emergency power supply of technical facilities andprocesses.Today stationary batteries are mostly connected in parallel with the DC powerequipment ... somespecial cases there are further requirements, e.g for UPS devices the connectedpower supply requires constant power That means when the battery output voltagedecreases, the discharge current ... when the mainpower fails, and nobody can forecast when this will happen and how longthe failure will last Many investigations have been made to find out how often and how long the mainpower network

Ngày tải lên: 05/07/2014, 06:20

... power from the utility is present and that the power supply is operating in AC LINE mode 2.3.2 "STANDBY POWER" (red) LED The red "STANDBY POWER" LED indicates that the power supply ... Series power products, for use with XM Series power modules Trang 275.17 APP60S (Service Power Supply)The APP60S is a portable, non-standby power supply used to provide conditioned ACpower to ... continues to supply power to the output Depending upon the type of batteries used, and the loading on the power supply, backup power can continue for several hours When utility line power returns,

Ngày tải lên: 23/10/2014, 09:19

... the power supply topology should be buck, boost or buck-boost type Factors (b) and (c) determine whether or not the power supply topology should have a transformer Reliability of the power supply ... constant, power loss inside the converter occurs This type of converter is known as shunt-controlled regulator The power loss inside the converter is given by Equation 1 Please note that the power ... stress of the switch, make a forward converter feasible for the output power (up to 150 watts) of an off-line low-cost power supply Its non-pulsating output inductor current makes the forward converter

Ngày tải lên: 17/05/2015, 15:33

... the second of a two-part series on Switch Mode Power Supply (SMPS) topologies The first application note in this series, AN1114 -“Switch Mode Power Supply (SMPS) Topologies (Part I)”, explains ... value of the voltage is negative) Author: Antonio Bersani Microchip Technology Inc. Switch Mode Power Supply (SMPS) Topologies (Part II) Trang 2BUCK CONVERTERThe Buck Converter converts a high input ... EQUATION 13: Solving Equation 13 with respect to LO results in Equation 14 EQUATION 14: Power Losses In The Inductor Power losses in the inductor are represented byEquation 15 Trang 8OUTPUT CAPACITORThe

Ngày tải lên: 17/05/2015, 15:33

... Silicon-on-Insulator (SOI) 4 low power packaging Trang 231.1 Voltage Scaling for Low-Power Digital Circuitsnamic power, the leakage power and the short-circuit power The dynamicpower results from charging ... less power consumption.Therefore, the digital modules are generally the dominant power consumer on a SoC Trang 221.1 Voltage Scaling for Low-Power Digital CircuitsTable 1.1: Summary of low-power ... biasing) 6 sleep and power down modes Circuit level 1 power gating, clock gating 2 logic sizing and logic re-structuring 3 adiabatic logic circuits 4 low power SRAM, DRAM, etc. 5 power-ecient DC-DC

Ngày tải lên: 14/09/2015, 14:01

... critical loads When a power failure or abnormality occurs, the UPS will effectively switch from utility power to its own power source almost instantaneously There is a large variety of power-rated UPS ... transfers utility power through to the load until either a power failure, sag, or spike occurs, at which point the UPS switches the load onto bat-tery power and disconnects the utility power until ... Trang 2NOWADAYS, UNINTERRUPTIBLEpower supply (UPS) systems are in use throughout the world, helping to supply a wide variety of critical loads, such as telecom-munication

Ngày tải lên: 26/11/2015, 09:42

... thePIC16HV785 with an on-chip 5V shunt regulator for powering the microcontroller and associated circuitry So, the power conversion section of the power supply design is comprised of the two feedback ... limited restart • Over current alarm Author: Keith Curtis Microchip Technology Inc. Switching Power Supply Design with the PIC16F785 Trang 2HARDWARE THEORY OF OPERATION SMPS SECTION To better understand ... feedback path of this design is very similar to the current feedback path of a discrete switching power supply design However, there are a few notable differences: 1 The frequency of the PWM generated

Ngày tải lên: 11/01/2016, 16:38

... INTRODUCTION TO HIGH VOLTAGE POWER SUPPLY 1.1 Principle of radiation detector 1.2 High voltage power supply CHAPTER 2: STRUCTURE OF HIGH VOLTAGE POWER SUPPLY 2.1 Oscillator ... Design and Fabrication of High Voltage Power Supply for Radiation Detector Figure 3.10.High voltage power supply circuit board Figure 3.11.High voltage power supply has been finally approved 28 ... frequency of oscillator 32 vii PREFACE High Voltage Power Supply is essential for nuclear radiation detection or counting system A high voltage power supply unit that is suitable to use with Geiger

Ngày tải lên: 27/10/2017, 15:15

... (UFC) ELECTRICAL POWER SUPPLY AND DISTRIBUTION APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED UFC 3-550-03FA 01 March 2005 UNIFIED FACILITIES CRITERIA (UFC) ELECTRICAL POWER SUPPLY AND DISTRIBUTION ... using agency 11-7 Electrical Power Sources a Alternate electrical power requirement In the event of an outage of normal electrical power, a reliable alternate electric power source is necessary ... different degree of importance in the hierarchy of power supply contigurations and equipment.) The next part of the design process involves estimating the power load requirements; defining the measures

Ngày tải lên: 05/12/2017, 01:36

... 2.2: Consumed power calculation Absorbed power versus rated power Since motors are rated according to output power, the absorbed power (input power) can be lower or higher than rated power due ... factors)  Power factor considering load factor ( power factor varies in different load factors) Required Mechanical power Mechanical power divided by Efficiency Electrical absorbed power Electrical ... simultaneously be done to calculate the required power supply, transformer sizing and bus bars sizing In addition, active power, reactive power and power factor for each bus and entire system is

Ngày tải lên: 01/06/2018, 14:57

... CISCO® VPN CONFIGURATION GUIDE PRACTICAL CISCO VPN CONFIGURATION TUTORIALS Your one-stop Information Resource For Configuring Cisco VPN Technologies on Routers and ... Multipoint VPN Applications 31 Chapter 2.1 VPN Configuration on Cisco Routers 33 Policy-Based VPN Configuration on Cisco Routers 33 2.1.1 2.1.1.1 Site-to-Site IPSEC VPN ... Complete VPN Configurations on Cisco ASA 211 4.2.1 Site-to-Site IPSEC VPN 211 4.2.2 Hub-and-Spoke IPSEC VPN with Dynamic IP Spoke 216 4.2.3 IPSEC VPN Between Cisco

Ngày tải lên: 04/03/2019, 10:45

... house in AC but electrical equipment needs DC voltage DC POWER SUPPLY LINEAR DC POWER SUPPLY Block Diagram : DC POWER SUPPLY LINEAR DC POWER SUPPLY Function Of Each Block :  Transformer - steps ... DC POWER SUPPLY LINEAR DC POWER SUPPLY Importance of DC power supply:  Most electric equipment requires DC voltage  Dry cells unable to accommodate the needs of electrical equipments  Power ... voltage  Voltage divider – distributes DC output voltage to load EXAMPLE OF LINEAR DC POWER SUPPLY DC POWER SUPPLY TRANSFORMER Circuit symbols Transformer with two windings and iron core Step-down

Ngày tải lên: 15/07/2019, 23:02

... Traction Power Supply with Railway Hybrid Power Quality Conditioner Trang 2Co-phase Traction Power Supply with Railway Hybrid Power Quality ConditionerTrang 3NingYi DaiCo-phase Traction Power Supply ... power engineers and power electronics development,various power quality compensators have been proposed and used for power qualityconditioning in traction power supply [8–10] Since traction power ... traction power systemunbalance tolerance.Reactive Power and Power Factor Another power quality concern in power system is the reactive power.According to the definition, considering a harmonic-free power

Ngày tải lên: 16/12/2019, 09:21

... in accordance with the Power Supply Company’s Standards and Vietnam Standards: a) Distribution Panel b) Lightning Arrestors c) Fuses Cut-out d) Transformers e) Low Voltage Power Cable from Transformer ... shall be as shown on the Drawings or equivalent as approved by the Engineer 3 SUBSTATION All power supply for lighting shall be as shown on the Drawings The components shall be designed for 3-phase ... Trang 1LIGHTING AND POWER SUPPLY WORKSTrang 2 TABLE OF CONTENTSI REFERENCE STANDARDS II MATERIALS III LIGHTNING PROTECTION

Ngày tải lên: 03/06/2021, 00:35

... Motor Power Trang 6M37 POWER SUPPLY ENCLOSUREFigure 5-4 M37 Power Supply Enclosure Layout - Plan View 10 Terminal Block TB2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 19 18 Trang 7M37 POWER SUPPLY ... +12V I/O Node Power, Grid-Lok Tooling and High Throughput Conveyor (HTC). +42V/+48V Servo Motor Supply Trang 11M37 POWER SUPPLY ENCLOSURE3 On the taskbar, select Start, Programs, DEK Power Monitor ... Switched Mode Power Supply Unit (SMPSU) which converts the ac into the following dc supplies: • +24V US • +24V SW • +5.5V • +12V • -12V PSU 2 is a 600W high range input Switched Mode Power Supply Unit

Ngày tải lên: 17/09/2022, 10:12

... maintain a reliable power supply amid rising consumption in the southern regions As demand increases while supply remains centrally managed, longer distribution distances and power supply imbalances ... decline in energy supply, largely due to the global economic crisis Trends in electricity supply since 2001 are detailed in Annexure I, Part B, Figure.The load factor of a power supply system reflects ... nuclear power contributed 4.2% and hydropower only 1.3% to the country's energy mix.The electricity supply is dominated by the governmental electricity utility, Eskom, a limited range of municipal power

Ngày tải lên: 11/10/2022, 12:23

... 127.0.0.1: 3000 là socket tiến trình connectMng qua kết nối TCP + eleEquip hiển thị lượng điện năng được cung cấp (bằng chuỗi ký tự) và trạng thái từ powerSupply trong bảng điều khiển 2.2 powerSupply ... trình elePowerCtrl - Chức năng cụ thể: + Gửi yêu cầu tới powerSupplyInfoAccess để đọc ghi thông tin Trang 9+ Gửi yêu cầu kết nối và ngắt của thiết bị cho elePowerCtrl.+ Trả về kết quả của elePowerCtrl ... eleEquip, connectMng thực hiện enqueue và dequeue 2.4 elePowerCtrl - Trung tâm xử lý phân phối điện - Nhận yêu cầu từ powerSupply, gửi yêu cầu powerSupplyInfoAccess cập nhật lại thông tin hệ thống cũng

Ngày tải lên: 20/10/2022, 09:39

... 1.2 Hệ thống quản lý điện năng cung cấp Thiết kế trong 2.1 eleEquip 2.2 powerSupply 2.3 connectMng 2.4 elePowerCtrl 2.5 powerSupplyInfoAccess KIỂM THỬ 1 Chạy chương trình 2 Kết quả ĐÁNH GIÁ Công ... 127.0.0.1: 3000 là socket tiến trình connectMng qua kết nối TCP + eleEquip hiển thị lượng điện năng được cung cấp (bằng chuỗi ký tự) và trạng thái từ powerSupply trong bảng điều khiển 2.2 powerSupply ... tiến trình elePowerCtrl + Gửi yêu cầu tới powerSupplyInfoAccess để đọc ghi thông tin 8 | Page Trang 9+ Gửi yêu cầu kết nối và ngắt của thiết bị cho elePowerCtrl.+ Trả về kết quả của elePowerCtrl

Ngày tải lên: 21/10/2022, 04:48