switch on back of pc power supply
Electronics - Digital Control of Switching Power Supply
Ngày tải lên :
27/10/2013, 16:15
...
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...
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A digitally controlled switch mode power supply based on matrix converter
Ngày tải lên :
13/05/2014, 00:55
... 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...
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Single phase uninterruptible power supply based on z source inverter
Ngày tải lên :
03/01/2014, 19:12
... 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...
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Reliability analysis of a power system based on the multi state system theory
Ngày tải lên :
03/01/2014, 19:38
... 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,...
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Your PC, Inside and Out: Chassis, Power supply and Motherboard
Ngày tải lên :
19/03/2014, 20:35
... 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,...
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switching power supply of autonics guides
Ngày tải lên :
10/04/2014, 19:55
... 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...
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Tài liệu The impact of timely information on organisational performance in a supply chain
Ngày tải lên :
28/05/2014, 20:34
... 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...
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báo cáo hóa học:" Effects of low power laser irradiation on bone healing in animals: a meta-analysis" pptx
Ngày tải lên :
20/06/2014, 04:20
... 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,...
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Báo cáo hóa học: " Research Article On Sum Rate and Power Consumption of Multi-User Distributed Antenna System with Circular " pdf
Ngày tải lên :
22/06/2014, 19:20
... 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...
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Báo cáo y học: "Effects of Losartan on expression of connexins at the early stage of atherosclerosis in rabbits"
Ngày tải lên :
26/10/2012, 09:39
... 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...
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Power Supply Units Guide.
Ngày tải lên :
01/11/2012, 16:38
... 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...
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REVIEW OF THE FISHERIES SUPPLY CHAIN IN VIET NAM
Ngày tải lên :
28/03/2013, 13:51
... 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...
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