Pfc Power Supply
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 DELL Power Supply 305 Watt PFC MT GX620  US $91.88
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 HP Power Supply SFF 240W PFC US $85.31
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 DELL Power Supply 220 Watt PFC USFF US $69.29
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 HP Power Supply Assembly DL36X Hot Plug PFC Kit US $272.08
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Who stole your electric power consumption: various contrast test
"Energy" is a very popular consumption in IT. Acer TravelMate 5110 Battery,With energy saving for window derive a lot of distinctive products, such as energy saving, low power consumption, mainboard processor display, green energy disk, etc. Many consumers are willing to spend more energy-efficient products for these funds. In fact, the processor, buying video disk or motherboard, very easy to overlook the key part of power supply for computer, overall energy-saving effect has important influence. Flowers and high price buys other energy-saving products, if you can supply aspects in discreet choice, perhaps it in saving more power at the same time, also reduced the cost of buying a computer. Acer TravelMate 5110.
So how to buy products? Below we will pass through practical test, to explain the truth. We find from the mainstream market to six different power supply products, specifications of the brand has compulsively. The six product range of power 600W ~ 2million, including four active PFC products and two passive PFC products. We will be installed in one of two main them on the platform, comparing the test using different power, the power to change.
Source code:
We will supply the six of them separately with the size of the rated power for the code name.
Mark: not bad power supply, TravelMate 5110 Battery,power rating of inferior only marked "300"
300W power rating: a brand, adopting active PFC 300W power,
350W: a brand 350W rated power supply, using passive PFC,
400W: 80Plus through authentication of a power rating of brand power, using an active PFC,
450W: 80Plus through authentication of a brand 450W rated power supply, adopting active PFC,
600W: a brand high-end 600W rated power supply, using active PFC.
Inferior power most use very much power
This should be everybody unexpected things, this inferior power, we can use very much power through figure 2, 3, 5. Among them, we can be sure that it is less than 2million power rating. We know, general power in the middle of the load, conversion efficiency is the highest. Or in other words, the power 90W should have their own highest conversion efficiency. But in this power, other power is in low load stage in low load, and the high efficiency of conversion to them. But we see in all this test is in the DianLaoHu "power" position.
The active PFC power Not saving necessarily
Maybe a lot of people think the active power will be more PFC, but this is not completely some correctly. You see FIG. 5. In doing this test, using the 300W power active PFC than using passive 350W power of PFC use very much power, and more in other tests, and maintain close 350W power with this passive power level. And with more than his power of active power, the low PFC active power consumption was PFC.
Using active PFC power generally work better, so in power, Acer TravelMate 5110 Laptop Battery,has good performance, they habitually think it is active the benefits of PFC. Actually, using the power of the main active PFC advantage is more effective promotion of power grid power factor of alternating current (the effective utilization), radio waves and to improve the power of active PFC conversion efficiency and no direct relationship. At the same time, the active PFC use is active design, including many electronic components oscillating circuit, and with a single inductor is made of pure passive in the power, compared to PFC consumes more active PFC instead of electricity. Can say so, if the power of the conversion efficiency, whether to adopt active power, not PFC. Even for the national power saving active PFC under a bit of energy and power, but their low cost of double conversion.
High power supply at low load operation, save electricity and work
Maybe you would think that in low power on the platform of the use of high power electric power products, will cause the waste. Actually we can observe figure 1, 2, 3, 4, 5, and 6. In our tests, power consumption in 100 ~ 2million, low-power power conversion efficiency is the best stage, but 300W power consumption and 350W far above the w and 450W power, even 600W higher power. By power, size to see whether the power saving mode. In the practical work, the higher costs, more sophisticated high power supply, in low power operation still has the advantage of saving..
Passive PFC power efficiency slightly inferior
Although the active power Replacement Acer TravelMate 5110 Laptop Battery,conversion efficiency of PFC must not high, but using the power of passive PFC conversion efficiency must not high. In the test, we saw all the power supply or conversion efficiency of power, using active PFC. If consumers need to purchase, quality of active power, should be the best PFC energy.
Inferior power cannot achieve high load
We in figure 6 B game platform tests, the platform power reached 290W, remove power itself has 40 w ~ 50W loss, can calculate the power 250W in separate platform. But the "three" inferior power cannot work. Even if we change into a video card, let the low power consumption is only about 2million platform, this power still unable to run. So everybody buying power, first, the power to see brand name plate with the numerical not reliable.
Shutdown, standby power should not be ignored
All through the figure 7, 8 can clearly on the Battery For Acer TravelMate 5110 power of the shutdown, standby power consumption. It was evident that the power supply and inferior quality, there is 600W high power supply, power consumption is higher. In this respect Taiwan power products with good performance. In the shutdown and standby power, though only a few watts of power, but the water out, come down for a long time of power consumption is considerable.
choose 80Plus power through authentication
In all the tests, the two 80Plus through authentication of power saving is maintained the best energy saving effect. Compared with ordinary power, in any load tests, power at least drop 10W above. And in the standby power, or shutdown also showed excellent conversion efficiency. The power 80Plus choice seems authentication, the choice is a convenient way energy source.
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