connector on power supply

Single phase uninterruptible power supply based on z source inverter

Ngày tải lên : 03/01/2014, 19:12

... L2 ) over one switching period in steady-state operation is zero (uB − uC )T1 + uC T0 = (6) ZHOU et al.: SINGLE-PHASE UNINTERRUPTIBLE POWER SUPPLY BASED ON Z-SOURCE INVERTER 2999 III C ONTROL P ... the proportion controller Furthermore, the underdamped state is designed for this two-order inner 3000 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL 55, NO 8, AUGUST 2008 Fig Control system ... transfer function is Wou (s) = Wu (s)Wci (s) sCs (20) where Wu (s) is the transfer function of the outer loop controller The proportional–integral (PI) controller is adopted to control the outer...

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A digitally controlled switch mode power supply based on matrix converter

Ngày tải lên : 13/05/2014, 00:55

... DIGITALLY CONTROLLED SWITCH MODE POWER SUPPLY Fig Conventional telecommunication switch mode power supply [1] Fig 125 Proposed digitally controlled switch mode power supply based on matrix converter ... and unity power factor (see Table I) [8], [9] VIII CONCLUSION In this paper, a digitally controlled switch mode power supply based on matrix converter for telecommunication applications has been ... include ac/ac power converter, switch mode power supply, power quality, and power electronic applications Han Ju Cha received the B.S degree in electrical engineering from Seoul National University,...

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On the road towards robust and ultra low energy CMOS digital circuits using sub near threshold power supply

Ngày tải lên : 14/09/2015, 14:01

... (LTCMOS) Silicon -on- Insulator (SOI) low power packaging 1.1 Voltage Scaling for Low -Power Digital Circuits namic power, the leakage power and the short-circuit power The dynamic power results ... the contribution of leakage power to the total power also becomes signicant The leakage current is sensitive to thermal conditions as its absolute value increases in an exponential fashion with ... 2-stage pipelined micro-controller with embedded SRAM and DC-DC converter in 65nm CMOS 10 1.4 Contributions of This Work 1.4 Contributions of This Work The major contributions of this work include:...

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Power Supply Units Guide.

Ngày tải lên : 01/11/2012, 16:38

... Athlon XP) - WTX: jack 24 chân, dùng cho Pentium II, III Xeon Athlon MP - ATX 12V: jack 20 chân, dây phụ chân 12v (Pentium Athlon 64) - EPS12v: jack 24 chân, dây phụ chân dùng cho hệ thống Xeon ... http://www.jscustompcs.com /power_ supply/ - http://www.mymp3car.com/MP3Car/PSUpower.asp Trong thực thế, Khi đem hệ thống thuộc dạng mạnh đưa thử nghiệm bao gồm: + AMD Opteron DualCore 165 @ 2.9Ghz ... cao Năng lượng cực đại lượng liên tục: Mức lượng liên tục (Continuous Power) số nêu lên khả cấp điện nguồn lúc lượng cực đại (Peak Power) lại mức tối đa khoảng thời gian ngắn Chính thế, lấy ví...

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UPS (Uninterruptible Power Supply)

Ngày tải lên : 27/04/2013, 11:36

... Athlon XP) + WTX: jack 24 chân, dùng cho Pentium II, III Xeon Athlon MP + ATX 12V: jack 20 chân, dây phụ chân 12v v(Pentium Athlon 64) + EPS12v: jack 24 chân, dây phụ chân dùng cho hệ thống Xeon ... máy tính Bước Một lý cho việc PSU không hoạt động bạn chưa cắm đầu power switch Đầu power switch, thường đóng dấu PW PW _ON hay POWER SW, từ phía trước thùng máy đến mainboard Tuy nhiên, trường ... vhoạt động cung cấp nguồn cho tải • ON LINE: Inverter hoạt động (on) cung cấp điện cho tải UPS thông minh • Được điều khiển phần mềm qua cổng USB cổng song song • Cho phép chẩn đoán UPS Cho phép...

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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

... drastically reduced TABLE I TURN -ON AND TURN-OFF SWITCHING LOSSES III HIGH REPETITION PULSED POWER SUPPLY A Pulsed Current in High Repetition This switch can be applied to a power supply which supplies ... TECHNOLOGY Downloaded on November 26, 2008 at 00:02 from IEEE Xplore Restrictions apply 1796 IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, VOL 14, NO 2, JUNE 2004 Fig Simulation waveforms of current ... switching loss B Current Waveform Control It is required to control the current in time for operation of a synchrotron accelerator or a plasma control system By controlling S1 and S3 using PWM,...

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Electronics - Digital Control of Switching Power Supply

Ngày tải lên : 27/10/2013, 16:15

... A conventional SMPS employs a diode rectifier for ac to dc conversion This type of utility interface generates harmonics and the input power factor (PF) and total harmonic distortion (THD) ... harmonic limits II Analog and Digital Control Traditionally, the implementation of switching power supply has been accomplished by using analog power factor correction (PFC) as shown in Fig [3] Analog ... idr VS L o a d Gate input D Vdc DSP Control Fig Digital control of PFC Boost Converter intelligent control, it can be employed for power supply applications as shown in Fig In order to obtain...

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Tài liệu Power Supply Block Diagram ppt

Ngày tải lên : 13/12/2013, 23:15

... current ΔVo Load regulation (mV / A) = g ΔI L ΔVo 100 % load regulation = x ΔI L Vo H Chan; Mohawk College Other Specifications A common d fi iti f voltage regulation is: definition for lt l ti i VNL ... error/amplifier circuit Equation indicates that Vo depends on R2, R3, and VZ The shunt configuration is less efficient but R2 offers short-circuit current limiting H Chan; Mohawk College 17 Constant Current ... College Q1 starts to conduct when VR2 = 0.7 V R2 is typically chosen so that max IR2 is 0.1 A Power dissipation of Q1 is i P = (Vi - Vo)IL Q2 is for current limiting protection It conducts when VR1...

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Tài liệu The Computer Case and Power Supply pptx

Ngày tải lên : 21/12/2013, 19:15

... On Board _ Mouse Type PS/2 Serial _ USB Keyboard Connector _ 5-pin DIN or 6-pin mini DIN _ USB (Make sure it matches the connector on the Motherboard) Power ... the local power requirements when selecting the voltage for the power supply Step Power supplies are rated by wattage, which is usually between 250 and 300 watts What is the power supply rating ... DIN _ USB (Make sure it matches the connector on the Motherboard) Power Supply AT ATX _ Other _ Power Supply Wattage _ Step Examine the screws that will be used for the case...

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asg 2 electrical power supply

Ngày tải lên : 15/02/2014, 08:33

... Electrical power supply Summary 2.1 Introduction Page 2.2 Power supply to machinery Page 2.3 Standards and conventions Page 2.4 Power supply functions Page 2.5 Power supply to the control circuit ... in the zones of influence 2 Electrical power supply 2.4 2.4 Power supply functions Power supply functions There are three separate functions: b Supply and cut off the machine power and control ... coordination and discrimination An incident should never have adverse effects on the rest of the distribution system Electrical power supply 2.4 2.5 Power supply functions Power supply to the control...

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Báo cáo "Application of power electronic components to control parameters and switching of compensation devices on power networks " doc

Ngày tải lên : 05/03/2014, 14:20

... because of consuming a lot of reactive power Therefore, not only the compensation devices should be installed on the primary side but also on the the secondary side Commonly, compensation level ... thyristor valves Conclusion The application of power electronic components for controlling in the above mentioned cases brings certain benefits Comparing with the manual switching method or contactors ... loads The controlling of compensation devices could be implemented by power electronics structures controlling the firing angle of thyristor In the next section, we introduce a power electronic structure...

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AN UPDATE ON POWER QUALITY pptx

Ngày tải lên : 17/03/2014, 02:20

... various international organizations and institutions for maintaining a harmonically free power supply In a wider scenario, the harmonically free environment means that the harmonics generated ... only Harmonics generation In most of the cases the harmonics in voltage is a direct product of current harmonics Therefore, the current harmonics is the actual cause of harmonics generation Power ... polluted with interharmonics (non-integer frequencies of fundamental frequency) For such conditions power Harmonics Generation, Propagation and Purging Techniques in Non-Linear Loads utilities...

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Your PC, Inside and Out: Chassis, Power supply and Motherboard

Ngày tải lên : 19/03/2014, 20:35

... more commonly used as a “wildcard” connector; pretty much anything can be connected using molex, such as chassis fans PCIE connectors can also be powered using molex connectors if one isn’t ... SATA power connectors are also quite common SATA - This connector is used exclusively for the more recent SATA hard drives They’re not particularly common on older power supplies, but as mentioned ... load the power supply is under it will still perform with similar efficiency Connectors Every power supply you buy nowadays will use the same standardised connectors for the various components...

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AN UPDATE ON POWER QUALITY doc

Ngày tải lên : 23/03/2014, 15:20

... various international organizations and institutions for maintaining a harmonically free power supply In a wider scenario, the harmonically free environment means that the harmonics generated ... only Harmonics generation In most of the cases the harmonics in voltage is a direct product of current harmonics Therefore, the current harmonics is the actual cause of harmonics generation Power ... polluted with interharmonics (non-integer frequencies of fundamental frequency) For such conditions power Harmonics Generation, Propagation and Purging Techniques in Non-Linear Loads utilities...

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switching power supply of autonics guides

Ngày tải lên : 10/04/2014, 19:55

... 2000VAC đầu nối vỏ hộp phút, hư hỏng áp cấp vài phút Kết nối song song Kết nối nối tiếp Bộ nguồn ổn áp không sử dụng kết nối nối tiếp song song trường hợp Chú ý lắp đặt Hãy lắp đặt nơi thoáng gió theo ... điện áp cho phép Dòng điện Gợn sóng Tỷ lệ dao động điện áp Bảo vệ dòng Hoạt động nối tiếp / song song Hiển thò ngõ Điện trở cách điện Độ bền điện môi Chòu đựng chấn động Chòu đựng va chạm Nhiệt ... 24VDC) Đầu nối F.G (Field Ground) NGUỒN 100 - 240VAC 50/60Hz (85 - 264VAC) Chỉ thò ngõ - Ngõ DV ON, LED ON Cách lắp đặt vào ray Để lắp đặt nguồn ổn áp ray, trước tiên đặt nguồn ổn áp vào phần ray...

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brown, m. (1990). practical switching power supply design

Ngày tải lên : 18/04/2014, 12:25

... Design Considerations 125 9.4 Power Supply and Product Safety Considerations I 28 9.5 Testing Power Supply Units 132 9.5 I Line Regulation 132 Load Regulation 133 Dynamic Load Response Time 9.5.4 ... Regulator Configuration CHAPTER Semiconductors Used in a Switching Power Supply 43 5.1 Bipolar Power Transistors 43 5.2 PowerMOSFETs 50 5.3 Rectifiers 56 5.4 Switching Power Supply Control Integrated ... to Power Supplies 136 10.4 The Control-to-Output Transfer Functions of Common Switching Power Supply Topologies 148 10.4.1 Forward-hlode Control-to-Output Transfer Functions ( Voltage-Mode Control)...

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brown, m. (2001). power supply cookbook (2nd ed.)

Ngày tải lên : 18/04/2014, 12:28

... Medium 78–92% Yes 10 personmonthsa personmonths Quasi-Resonant Switching Regulator Highest Low-medium Medium 78–92% Yes 10 person-monthsa person-monthsb Based upon a reasonable level of experience ... design a power supply By presenting intuitive descriptions of the power supply system’s operation along with commonly used circuit approaches, it is designed to help anyone with a working electronics ... the environment in 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 system...

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Wind Power Impact on Power System Dynamic Part 1 pot

Ngày tải lên : 20/06/2014, 12:20

... these variations through their configuration, control systems and interconnection Changing weather makes people switch their heating, cooling and lighting on and off, millions of consumers expect ... design of wind power systems including a power source or synchronous generator (G), an AC/DC/AC converter and electronic equipment with power supplies connected to a power distribution network Mathematical ... voltage control is normally defined as rise time, overshoot and settling time Voltage control has the relation with leading/lagging reactive power at the grid connection point of wind power station...

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Wind Power Impact on Power System Dynamic Part 3 docx

Ngày tải lên : 20/06/2014, 12:20

... Wind Power converter №1 G №1 converter №2 Network converter №3 G №2 converter №4 G №3 G №4 Fig 49 1.5 ∗ PNo max 1.19 ∗ PNo ∗ PNo 0.59 0.5 converter 1.29 converters 1.5 1.62 converters converters ... sensorless control concept In order to increase the drive system reliability, speed and position sensorless vector control can be used In fact, the wind power generation is one of the applications which ... considered, for example, as independent stator parallel windings which are each fed by an own frequency converter If one of the frequency converters fails, other ones can continue the operation...

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