switch on back of pc power supply
Electronics - Digital Control of Switching Power Supply
... Digital Control of Switching Power Supply - Power Factor Correction Stage Sangsun Kim and Dr. P. Enjeti Power Electronics and Power Quality Laboratory Department of Electrical Engineering ... results. V. Conclusions Several implementation aspects of digital control of power factor correction (PFC) stage of SMPS have been explored with low cost digital controllers: TMS320C2407 ... environmental variations, and fewer part counts [2]. It also reduces the size of the power supply by containing the complexity of control system within the software. Therefore, since digital control...
Ngày tải lên: 27/10/2013, 16:15
A digitally controlled switch mode power supply based on matrix converter
... kW of output power. (2: [5 A/div], 4: [125 V/div]). 124 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 21, NO. 1, JANUARY 2006 A Digitally Controlled Switch Mode Power Supply Based on Matrix Converter Somnida ... efficiency. In response to these concerns, this paper proposes a digitally controlled switch mode power supply based on a matrix con- verter for telecommunication applications (Fig. 2). Matrix con- verter ... results on a three-phase 208-V, 1.5-kW laboratory prototype converter. II. P ROPOSED SWITCH MODE POWER SUPPLY The proposed digitally controlled switch mode power supply based on matrix converter...
Ngày tải lên: 13/05/2014, 00:55
Tài liệu tiếng anh Điện tử công suất mạch MERS Power supply for pulsed magnets with magnetic energy recovery current switch
Ngày tải lên: 15/10/2013, 16:11
Tài liệu tiếng anh Điện tử công suất mạch MERS Voltage rating reduction of magnetic power supplies using a magnetic energy recovery switch
Ngày tải lên: 15/10/2013, 16:12
Single phase uninterruptible power supply based on z source inverter
... total of nine switching states and their vector representations, where the switching function S x (x = 1, 2, 3, or 4) is defined as 1 when switch S x turns on and as 0 when switch S x turns off. ... UNINTERRUPTIBLE POWER SUPPLY BASED ON Z-SOURCE INVERTER 3001 TABLE I V S TEP R ESPONSE OF THE O UTER L OOP TABLE V S PECIFICATIONS OF A 3- KW UPS W ITH THE Z-S OURCE I NVERTER than the system switching ... proposed UPS offers the following advantages over the traditional UPSs: 1) The dc/dc booster and the inverter have been combined into one single-stage power conversion; 2) the distortion of the ac...
Ngày tải lên: 03/01/2014, 19:12
Reliability analysis of a power system based on the multi state system theory
... P ROBLEM F ORMATION The power system is composed of eight identical batteries. A branch c onsists of two batteries connected in series, and the system consists of four branches connected in parallel ... College of Mechatronics Engineering and Automation National University of Defense Technology Changsha, 410073, China Abstract—Reliability analysis of power systems using the traditional ... Reliability Analysis of a Power System Based on the Multi-State System Theory Chunyang LI College of Mechatronics Engineering and Automation National University of Defense Technology Changsha,...
Ngày tải lên: 03/01/2014, 19:38
Your PC, Inside and Out: Chassis, Power supply and Motherboard
... PCIE connectors can also be powered using 2 molex connectors if one isn’t available from the PSU itself, and molex to SATA power connectors are also quite common. SATA - This connector ... midi case, giving plenty of room for Power Rating The power rating of a power supply is most often referred to as its wattage. You can usually tell the power rating of a PSU just by looking ... particularly common on older power supplies, but as mentioned above it is possible to get a converter cable. Indeed, most budget cases still use this design, and for good reason – it’s a conventional,...
Ngày tải lên: 19/03/2014, 20:35
switching power supply of autonics guides
... tiếp và song song Chú ý khi sử dụng Chú ý khi lắp đặt Ngõ vào Ngõ ra Ngõ raNgõ vào Kết nối song song Kết nối nối tiếp Bộ nguồn ổn áp không được sử dụng kết nối nối tiếp và song song trong bất ... nó với đầu nối khác thì mạch bên trong sẽ bị hư hỏng. Nó làm việc với 2000VAC giữa đầu nối và vỏ hộp trong một phút, nhưng nó sẽ hư hỏng nếu quá áp được cấp trong vài phút. Bộ nguồn ổn áp có điện ... vào Sản phẩm này không có giá trị để hoạt động theo dạng điện áp ngõ ra song song và nối tiếp. Dòng điện ngõ ra phải được sử dụng trong phạm vi dải tỷ lệ. Khi nó hoạt động ở trạng thái quá dòng, quãng...
Ngày tải lên: 10/04/2014, 19:55
Tài liệu The impact of timely information on organisational performance in a supply chain
... Information Management, International Journal of Mobile Communications, International Journal of Electronic Healthcare and International Journal of Human Resources Management. R. Anthony Inman ... Professor of Management at Henderson State University. He has published papers in International Journal of Production Research, International Journal of Human Resource Management, Journal of ... Registered office: Mortimer House, 37- 41 Mortimer Street, London W1T 3JH, UK Production Planning & Control Publication details, including instructions for authors and subscription information: http://www.informaworld.com/smpp/title~content=t713737146 The...
Ngày tải lên: 28/05/2014, 20:34
báo cáo hóa học:" Effects of low power laser irradiation on bone healing in animals: a meta-analysis" pptx
... increase of periosteum cells function [18], increase of osetoblast and osteocyte function [18,19], new vascularistion [21,22], stimulation of enchondral ossification, earlier differentiat ion of mesenchymal ... allocation of treat ment; 4) any type of low level (power) laser irradia- tion was provided as an intervention to at least one of the treatment groups; 5) a quantitative measure of bone biomechanics ... research defining the effects of low power laser irradiation on biomechanical indicators of bone regeneration and the impact of dosage. Methods: We searched five electronic databases (MEDLINE, EMBASE,...
Ngày tải lên: 20/06/2014, 04:20
Báo cáo hóa học: " Research Article On Sum Rate and Power Consumption of Multi-User Distributed Antenna System with Circular " pdf
... Proof of the convergence and derivation of the rate -power relationship We have shown that though antenna placement and user dis- tribution are performed in a random manner, distributions of distances ... model. Sum rate, power con- sumption, and their relationship are analyzed in Section 3.In Section 4, we show how to use the rate -power relationship for antenna deployment optimization and how much ... Corporation EURASIP Journal on Wireless Communications and Networking Volume 2007, Article ID 89780, 9 pages doi:10.1155/2007/89780 Research Article On Sum Rate and Power Consumption of Multi-User Distributed...
Ngày tải lên: 22/06/2014, 19:20
Báo cáo khoa học: "A rare case of “switch on and off” multi-system Langerhans cell histiocytosis in an adult patient" doc
Ngày tải lên: 10/08/2014, 23:21
Báo cáo y học: "Effects of Losartan on expression of connexins at the early stage of atherosclerosis in rabbits"
... remodeling of gap junction between ventricular myocytes under pa- thological conditions. Key words: vascular proliferation; gap junction; connexin; balloon angioplasty; statin Introduction Atherosclerosis ... with anti-Cx43 monoc- lonal antibody (Zymed Laboratories Inc, Carlsbad, CA) or anti-Cx40 monoclonal antibody (Alpha Diag- nostic International Inc, San Antonio, TX) at a dilution of 1:1000 in ... II on expression of gap junction channel protein connexin43 in neonatal rat ventricular myo- cytes. J Mol Cell Cardiol. 1998; 32: 800-7. 15. Polontchouk L, Ebelt B, Jackels M, Dhein S. Chronic...
Ngày tải lên: 26/10/2012, 09:39
Power Supply Units Guide.
... công suất trực tuyến để tìm ra con số cần thiết ví dụ như: - http://www.jscustompcs.com /power_ supply/ - http://www.mymp3car.com/MP3Car/PSUpower.asp Trong thực thế, Khi đem một hệ thống ... công suất khoảng 430w vào bộ nguồn có chỉ số Continuous Power là 400w, chúng vẫn có thể hoạt động được trong khoảng thời gian ngắn nếu mức Peak Power của nguồn đạt trên 430w nhưng sau một ... -13.2V 5. +3.3VDC ±5% +3.14V +3.47V 6. +5V SB ±5% +4.75V +5.25V 12. Chế độ Soft Power và tín hiệu chờ 5v: Soft Power là cách thức mà bộ nguồn máy tính được bật lên hoặc tắt đi. Thay vì sử...
Ngày tải lên: 01/11/2012, 16:38
REVIEW OF THE FISHERIES SUPPLY CHAIN IN VIET NAM
... negative impacts on the economic effectiveness of the fisheries production producers and consumers. The continuous research on innovation of the trading policies and production policies in ... traceability of the products; profits, prices and market are the most concern of these groups among supply chain. 3> Processing plants, exporters and consumers concern a lot on the quality of the ... emphasize on nature of supply chain, strengths and weakness of the chain as well as the recommendations for improvement of the chain by enhancing the collaboration/cooperation not only among small-scale...
Ngày tải lên: 28/03/2013, 13:51