example boost converter discontinuous current
DC bus control of variable speed wind turbine using a buck boost converter
... output load current is reduced below the critical current level, the inductor current will be zero for a portion of the switching cycle In a buck -boost power stage, if the inductor current attempts ... conduction mode The inductor current condition where the power stage is at the boundary between continuous and discontinuous mode is shown in Figure This is where the inductor current just falls to ... line current I, Rg = V I (14) The following equation is obtained, when (14) is substituted in (13) Fig.5 Probable displacement of the operating point Fig.4 Operation modes of buck boost converter...
Ngày tải lên: 03/01/2014, 19:15
Research on a novel buck boost converter for wind turbine systems
... provide ac NHC Fig Buck -boost inverter operation in the discontinuous current mode output when switch T1 is tuned off and T2 is turned on Through a flyback operation, the current of primary side ... source (i.e Fig Buck -boost inverter operation in the continuous current mode Wind Turbine) and discharged to a grid through a low pass filter The inductor current can be discontinuous as shown ... output Two current conduction modes can be defined here If the time of Mode is so short that the inductor current is not decreasing to zero when the next charge cycle Mode starts, the current of...
Ngày tải lên: 03/01/2014, 19:16
Thiết kế mạch boost converter DC-DC
... thiệu nguyên lý sơ đồ cấu trúc Boost Mô hình hóa Thiết kế mạch điều khiển Mô điều khiển Matlab Psim CHƯƠNG TỔNG QUAN MẠCH BOOST CONVERTER Nguyên tắc hoạt động Bộ boost converter có tác dụng điều ... áp đầu tăng lên Boost converter thường sử dụng để điều chỉnh điện áp nguồn cung cấp hãm tái sinh động DC Hình1.1.1: Sơ đồ mạch điên biến đổi kiểu boost Hình 1.1.2: Sơ đồ mạch boost trạng thái ... luật KV ta có hệ phương trình mô tả sơ đồ mạch điện biến đổi boost converter trạng thái (2.18) Ta có: (2.19) Như vậy, biến đổi kiểu Boost converter mô tả không gian trạng thái theo dạng chuẩn sau:...
Ngày tải lên: 19/05/2015, 00:48
Design of a wide input supply range buck boost converter
... Buck -Boost Converter Startup Transient Response Buck -Boost Converter Steady-State Response Summary 181 184 184 186 188 189 11.1 11.2 Buck -Boost Converter Performance Comparison Novel Buck -Boost Converter ... Results Buck -Boost Converter Startup Buck -Boost Converter Regulation Buck -Boost Converter Line Transient Response Discussions & Suggestions 229 230 231 232 233 235 238 SUMMARY Buck -boost converters ... Quiescent Current Not Specified 16µA 86µA 5µA Max Load Current 800mA 260mA 500mA 100mA 1-1: DC-DC converters summarized performance - CChhaapptteerr 22 Buck -Boost Converter Topologies The buck -boost converter...
Ngày tải lên: 04/10/2015, 15:44
Evolution of artificial neural network controller for a boost converter
... Voltage of the Boost Converter (V) VS Supply Voltage to the Boost Converter (V) V0 Output Voltage of the Boost Converter (V) I0 Load Current of the Boost Converter (A) D Duty Ratio of Boost Converter ... voltage Example: Buck converter · Step-up/down converter in which magnitude of load voltage may be either higher or lower than that of the supply voltage Example: Buck -Boost converter, Cuk converters ... of a Boost Converter and its Control Difficulties 4.1 Introduction to DC-DC Power Converters As mentioned earlier, the boost converter is used as a testing vehicle in this thesis as an example...
Ngày tải lên: 05/10/2015, 22:04
AN1311 single cell input boost converter design
... AN1311 BOOST CONVERTER ANALYSIS Boost Converter Operation The Inductive Switch mode boost power converter is used to step up a lower voltage to a higher voltage The boost topology requires ... of a boost converter, it is assumed that the output voltage ripple is low or DC In practice this assumption is normally valid for DC-DC converters However, in many boost converters, the DC current ... represents Continuous Inductor Current mode VOUT - VIN VOUT VSW IIN IL DISCONTINUOUS INDUCTOR CURRENT MODE During Discontinuous Inductor Current mode, the inductor current reaches zero prior to...
Ngày tải lên: 11/01/2016, 16:55
VHDL Programming by Example 4th Edition
... Chapter 39 Process Statement Sensitivity List Process Example Signal Assignment Versus Variable Assignment Incorrect Mux Example Correct Mux Example Sequential Statements IF Statements CASE Statements ... between the BEGIN and the END netlist statement are called concurrent statements, because all the statements execute concurrently Concurrent Signal Assignment In a typical programming language ... about the language and examples used throughout the book In the first section VHDL features are introduced one or more at a time As each feature is introduced, one or more real examples are given...
Ngày tải lên: 16/08/2012, 08:46
Intelligent Software Agents on the Internet: an inventory of currently offered functionality in the information society & a prediction of (near-)future developments
... Intelligent Agents 21 3.2 Examples of agent applications and entire agent systems 23 3.2.1 Two examples of agent applications 24 3.2.1 Two examples of agent applications ... Still, four examples from the broad variety of agent applications and agent systems have been selected to be given a closer look The two agent applications serve as examples of what is currently ... language, etcetera PART TWO - Current & Expected Near-Future and Future Agent Developments, Possibilities and Challenges Past and Current Agent Trends & Developments Past and Current Agent Trends &...
Ngày tải lên: 08/10/2012, 15:22
Báo cáo y học: "Current Status of Methods to Assess Cancer Drug Resistance"
... subgroups of patients detected by special biomarkers could a major therapeutic success be demonstrated Examples are: for trastuzumab breast cancer with overexpressed HER2, for imatinib gastrointestinal ... test is clearly superior to tumor size measurements it has already been proposed to replace the currently used “Response Evaluation Criteria in Solid Tumors” (RESIST) based only on anatomic imaging ... Havrilesky LJ, Krivac TC, Mucenski JW et al Impact of chemoresponse assay on treatment costs for recurrent ovarian cancer Am J Obstet Gynecol 2010; 203: 1-7 41 [Internet] NCCN National Comprehensive...
Ngày tải lên: 25/10/2012, 11:10
Báo cáo y học: "980 nm diode lasers in oral and facial practice: current state of the science and art"
... milliseconds [4] With Argon lasers, moreover, recurrences were frequent [3] In medical practice a current treatment is now considered to be photocoagulation by Laser or Lamps with intense incoherent...
Ngày tải lên: 26/10/2012, 09:48
current situation of outsourcing development, a number of favorable factors promoting this industry as well as analysis of outsourcing activities FPT Software.doc
... profitable and fast-growing industry This paper studies the current situation of software outsourcing development, some of the favorable factors that boost this industry as well as the analysis of the ... technology have been issued More importantly, software outsourcing is currently the most protected economic sector in Vietnam It currently enjoys many favors including tax and investment incentives, ... special attention of the government Current policy pursued by Vietnam Government with respect to the development of the software industry is exceptionally positive For example, the resolution No 7/2000/ND-CP...
Ngày tải lên: 27/10/2012, 16:41
Guarantee Operations at Agribank – Current Situation and Recommendations.doc
... To give an overall picture of current situation of guarantee operation at Agribank, figures of three latest years 2005, 2006, 2007 and some evaluation will be shown Current situation of concerned ... Hoài Thu c Place strategy Agribank need boost the traditional distribution channels as well as modern ones (installation of ATM which can serve 24/24, for example) in order to improve convenience ... Agribank? (6) What is about the regulations of guarantee activities at Agribank? (7) What is the current situation of guarantee activities at Agribank? A2-K43 BBE Trần Thị Hoài Thu (8) What are...
Ngày tải lên: 27/10/2012, 16:43
Tìm hiểu nguyên lý ổn dòng của mạch buck converter
... nguyên lý ổn dòng mạch buck converter * Nguyên lý làm việc mạch buck converter U1 1 D U out U in M O SFET R s L2 IN D U C T O R Hình 1: mạch nguyên lý buck converter */ Buck converter biến đổi mà điện ... biến đổi mà điện áp đầu nhỏ điện áp đầu vào hay gọi biến đổi giảm áp ( step-down converter) Hình sơ đồ nguyên lý buck converter, Mosfet hoạt động công tắc(van) đóng cắt xung điều khiển ( xung vuông ... buck converter +/ Để điều khiển đóng mở van ta có nhiều cách tạo xung vuông điều khiển thông dụng ta sử dụng giữ nguyên chu kì T thay đổi thời gian mở xung t1 +/ Nguyên tắc ổn dòng sử dụng buck converter...
Ngày tải lên: 12/11/2012, 10:27
296601-Solid-Converter-PDF-7.0-Build-830-Phan-mem-chuyen-.pdf-sang-
... Solid Converter PDF 7.0 Build 830 | Phần mềm chuyển pdf sang doc Bạn có tài liệu định dạng PDF làm cách chuyển sang dạng Word để sử dụng làm tài liệu cho riêng Điều thực dễ dàng với Solid Converter ... Microsoft Word để dễ dàng chỉnh sửa chức chương trình Solid Converter PDF 7.0 Build 830 | Phần mềm chuyển pdf sang doc Đặc điểm bật Solid Converter PDF so với phần mềm khác loại khả giữ nguyên được ... vào C:\WINDOWS\Fonts ) Tên phần mềm: Solid Converter PDF 7.0 Build 830 Chức chính: Phần mềm chuyển pdf sang doc Dung lượng: 24.8 MB DOWNLOAD Code: "Solid Converter PDF 7.0 Build 830" FULL có file...
Ngày tải lên: 29/01/2013, 16:51