Compaq 001

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As the frequent change of laptop, and LCD's rapid development inch by inch, the power adapter of laptop is making progress stage by stage, even reaching the 100W or so, almost equals a small desktop computer power supply! Like this HP 402018-001 AC adapter, it's a common one that the watt is 65W.While putting your hand on it, you may be worried that will it not fire? Compaq, IBM, such big companies have brought back their power adapter due to it may have the power design flaws, and lead to fire!

In fact, as long as the temperature of power adapter is not higher than the designed temperature, that is, the temperature belongs to the normal range; the power adapter generally is safe! As this HP 402018-001 AC adapter, it has the same problem. So, why are the power heated? What temperature range is in the normal scope? Switching power conversion efficiency can only reach about 75% -85% at present. The answer is here. Switching power conversion efficiency is high enough, and it is still difficult to find a better conversion. Switching power supply during voltage conversion, some energy lost, which in addition to a small part of the loss is in the form of waves, the majority are distributed by way of heat. Higher of power switching power supply, more loss of energy also more amount of heat being distributed. That is why desktop power supply to add a fan for cooling reasons.

This is the reason why a fan is put on the desktop power supply to cool.

Therefore, while designing and producing switching power supply, be sure to select the components that can withstand high temperature. Of course, the temperature must be controlled in the range that application environment permits. First, the conversion efficiency should be designed to be as high as possible, and secondly, components and parts of low pressure and low loss should be adopted. The third is design good heat output system. Heat exchanging area should be as large as possible. For example, generally switching power supply of more than 100W should have metal perforated casing, or be with cooling fan.

As I have learned the information above about the heat of the HP 402018-001 AC adapter, I have no worry about the heat of laptop adapter and also take some measures to cool it.

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Find Compaq 001 On eBay Below:

NEW HP SAS HDD Backplane for HP ProLiant BL480c Server 410294 001
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HP ProLiant DL360 G1 Server Mainboard Dual CPU incl 2 CPU fan 224928 001
HP ProLiant DL360 G1 Server Mainboard Dual CPU incl 2 CPU fan 224928 001
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HP Motherboard Motherboard for ProLiant DL160 G5 G5p Server 457882 001
HP Motherboard Motherboard for ProLiant DL160 G5 G5p Server 457882 001
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NEW HP Motherboard I O Board for Proliant BL2x220c G5 Blade Server 459273 001
NEW HP Motherboard I O Board for Proliant BL2x220c G5 Blade Server 459273 001
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HP Feature I O Board for Proliant DL785 G5 491103 001
HP Feature I O Board for Proliant DL785 G5 491103 001
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NEW HP CPU processor and Memory Board for DL785 G6 AH233 2109D 588797 001
NEW HP CPU processor and Memory Board for DL785 G6 AH233 2109D 588797 001
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HP Proliant DL385 G7 Server System Mother Board 583981 001 570047 001
HP Proliant DL385 G7 Server System Mother Board 583981 001 570047 001
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HP SAS HDD Backplane for HP ProLiant BL480c Server 410294 001
HP SAS HDD Backplane for HP ProLiant BL480c Server 410294 001
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HP Motherboard Motherboard for Proliant BL2X220C G6 601723 001
HP Motherboard Motherboard for Proliant BL2X220C G6 601723 001
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HP 381811 001 Proliant BL25P G1 System Base Board Mainboard Motherboard Dual 940
HP 381811 001 Proliant BL25P G1 System Base Board Mainboard Motherboard Dual 940
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HP DL380 G5 System Dual Core MotherBoard 407749 001
HP DL380 G5 System Dual Core MotherBoard 407749 001
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NEW HP Riser Board for DL320e G8 Server 686676 001
NEW HP Riser Board for DL320e G8 Server 686676 001
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HP 449365 001 Proliant DL385 G5 System Board
HP 449365 001 Proliant DL385 G5 System Board
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HP 713079 001 DL360P Gen8 SE System Board zy
HP 713079 001 DL360P Gen8 SE System Board zy
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HP P Series 256MB Cache Memory 013224 001 462974 001
HP P Series 256MB Cache Memory 013224 001 462974 001
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HP P400 256MB Memory Module NO Cont No Batt 405836 001
HP P400 256MB Memory Module NO Cont No Batt 405836 001
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HP PAV dV6000 DA0AT6MB8E2 943Gm Motherboard 444478 001 Pavilion Laptop System Bo
HP PAV dV6000 DA0AT6MB8E2 943Gm Motherboard 444478 001 Pavilion Laptop System Bo
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HP DL360P SAS BACKPLANE 25 667868 001 TESTED W CABLE  WARRANTY
HP DL360P SAS BACKPLANE 25 667868 001 TESTED W CABLE WARRANTY
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HP Pavilion DM1 2xxx K125 FP8 System Board 608640 001 Laptop Motherboard Assemb
HP Pavilion DM1 2xxx K125 FP8 System Board 608640 001 Laptop Motherboard Assemb
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HP Pavilion dm3 SU7300 Motherboard 585733 001
HP Pavilion dm3 SU7300 Motherboard 585733 001
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HP Pavilion DM3Z AMD K125 Motherboard 600818 001
HP Pavilion DM3Z AMD K125 Motherboard 600818 001
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HP Pavilion HM77 i3 3217U Motherboard New 698492 001 DA0U33MB6D0 Laptop
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HP XL250A x16 2U PCIe Rear Riser RC GEN9 794876 001 799711 001
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HP PCI Expansion Unit System Board w No Tray 454276 001
HP PCI Expansion Unit System Board w No Tray 454276 001
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