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| Choose LED Switching Power Supply Tips |
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The power to buy the scope of application of different power and its various power and maximum support to withstand the load limit and power. Such as data centers and other large-scale electrical locations, for example, still use ordinary civilian power, which is somewhat NA. To know the big power, such as data center is to have professional standards for electricity, either from a security point of view but also from the point of view of electricity standard, absolutely can not use ordinary civilian power.
Therefore, according to the needs of today's market, the rack power distribution unit gradually enter the market. To a large extent the security is indeed high, but its function may be some homogeneity. Here maybe someone will say, a power distribution unit do not need to give it too much, as long as you can to protect their equipment electrical safety can.
Before, I thought so too, but since the exposure to the security, a new understanding of the power supply supplier. I did not expect that small power distribution unit through the remote management technology, to achieve electrical equipment on, off and restart the various operations.
I believe in the server will crash or broken electrical equipment machine phenomenon plagued by some friends of the author is also engaged in the work of server hosting, they will often be plagued by the phenomenon. It is understood that when the server restarts to the user's request, the first to be found in the server cabinet position, and then enter the full radiation area of the great room, it may sometimes also be careful to bypass the crowded cable in the engine room, which the series restart work like woes, each link can not be taken lightly, so as to complete this simple restart. However, at some point, put down the phone non-stop work, and ultimately their customers still can not get satisfaction.
In accordance with the opinion of the author, the emergence of SAMND can alleviate this situation occur, the operation of the off-site remote reboot, eliminating the need the administrator restart a waste of time and manpower as well as server and PC-off machine time loss to improve the efficiency of the network,
In addition to the author most interested in is the the remote SAMND centralized management platform switching power supply Deluxe "can be achieved through this platform unattended engine room management, including electrical equipment, current, voltage, temperature and humidity as well as server kinds of network services from time to time monitoring, and electrical equipment failure, unique alarm can notify the user. This is a very nice feature, from the security aspects, everyone wants to always be aware of the safety of electrical equipment condition, SAMND just to help everyone got his wish, the equivalent for our electrical equipment hired a 24-hour personal nanny. Most electricity customers to help solve more problems.
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| 4月10日（水）11:27 | トラックバック(0) | コメント(2) | Job | 管理
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| Choosing the right DC Power Supply |
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The DC Power Supply is a rather fundamental electronic device, however there are hundreds of DC Power Supply products on the market from dozen of manufacturers. Narrowing down the best product for your application and budget can be a daunting task. This article addresses DC power supply differentiators, functions and the applications they are best suited for. The article's focus is DC Power Supplies used by engineers, manufacturers, quality professionals and electronic hobbyists for the purposes of R&D, manufacturing and testing.
Power Supplies can range in price from $50 to $20,000 and the cost is often directly proportional to the amount of power the device outputs. The primary function of a power supply is to regulate output voltage and current. It takes an input power and regulates the output power as to enforce a constant voltage and current. In the case of DC Power Supplies, the input power is converted from alternating current (AC) to direct current (DC). There are two basic types of regulated DC Power Supplies: Linear and Switching.
Linear power supplies can never output a higher voltage than the input source. In theory, a linear power supply that is driven by typical 110V wall outlet could only output 110V, assuming the device were 100% efficient. Realistically, no power supply is 100% efficient because power conversion always results in energy loss, usually in the form of heat dissipation. Therefore, linear power supplies usually output voltage that is significantly less than the input.
Switching power supplies can step-up, step-down or invert the input voltage. Switching power supplies are usually larger, noisier and more expensive than their linear counterparts, however, switching power supplies are typically more efficient.
Choosing the right DC power supply for your application requires definition of some basic design specifications: voltage range, current range, number of outputs, power cleanliness (known as "ripple") and programmability. In general, the higher the output voltage and the lower the ripple, the more expensive the DC Power Supply. Multiple outputs and programmability features will also add to the cost.
The least expensive DC Power Supplies are ideal for electronics hobbyists and basic electro-mechanical applications where only raw power is required. It is likely that the devices being powered in these applications already have power-conditioning features that eliminate the need for precision input power. Low power, single output, DC power supplies range in price from $50 to $200.
Mid-range power supplies are best suited for non-critical, laboratory projects involving more advanced electro-mechanical applications or basic board-level testing. Mid-range power supplies might have multiple outputs, higher power ratings, lower ripple and precision, digital metering (+/- .001V, +/- .01A). Mid-range DC power supplies can be linear or switching and could range in price from $200 to $1,000.
High-end applications requiring high output voltage, advanced programmability (GPIB PC Interfaces), numerous outputs and very low ripple should budget in excess of $1,000 for their
DC power supply. Many laboratory, R&D and testing applications could easily spend $5,000 to $10,000 per power supply.
This article has introduced some basic features and applications of DC Power Supplies. Before making your final purchase, be sure to consult the manufacturer and thoroughly understand all the specifications of a particular product. Choosing the best and most economical DC Power Supply for your application does not have to be a complex and time-consuming task. By identifying your design parameters, you will quickly narrow down product selection to a niche class of products from only a few power supply manufacturers.
Article Source: http://EzineArticles.com/176353
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| 10月9日（火）12:53 | トラックバック(0) | コメント(0) | Job | 管理
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