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June 28th, 2007

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regular power adapter is not necessarily true

Interpretation of basic knowledge Notebook - power adapter on the power supply, power supply, power supply and load matching or discussion, there are a few common questions are as follows:

1, the power adapter (hereinafter referred to as power) of the nominal voltage and current mean?

2, are of the same nominal power supply voltage, output current different, the same can not be used in the books?

3, the same machine, Managing someone else's power, I'm always very hot, and why?

4, power supply nominal voltage than my laptop battery voltage is much higher, will not trouble you?

5, why the power theory, first wife first wife is usually the power is better than non-?

First, the nominal voltage of the power adapter is usually open circuit output voltage, which is not connected to any load, no current output voltage value. Therefore, that this is the power supply output voltage limit. For the power regulator unit for use within the active component in the voltage reference or, in general the use of high resistance of the DC voltage meter can be directly measured nominal voltage (electromotive force should be used more accurate method of bridge, belonging to the University Physics course experiment, not repeat them here), even if the mains voltage fluctuations in a certain place, the output is steadily constant value; but for a small inexpensive transformer market, such as a music player like the kind used is basically the traditional magnetic core transformer rectifier diode bridge rectifier with four plus a large filter capacitors to get away, so if you use common DC voltage meter measured value will be greater than the nominal voltage, because the output of bridge rectifier pulsating DC, simply, it is a sinusoidal voltage signal of a positive half cycle of time connected chain, filtered through a large capacitor will become a flat number, but still large ripple factor (the ripple coefficient is the same voltage signal fluctuation The ratio of the average voltage, the smaller the closer that the DC voltage), the so-called nominal voltage refers to the time integral of this voltage divided by the integration time, the simple understanding is that the average value of time, if common DC voltmeter measured value is very close to the maximum value of the voltage signal, so the uncertainty. Also, if the electricity fluctuates, the output of such power will also change.
laptop ac adapter

Acer laptop ac adapter

Dell laptop ac adapter

Hp laptop ac adapter

Toshiba laptop ac adapter

Find Adapter Presario On eBay Below:

AC Adapter Power Charger for HP COMPAQ Presario CQ36 CQ42 CQ71 CQ71 235EA Supply
AC Adapter Power Charger for HP COMPAQ Presario CQ36 CQ42 CQ71 CQ71 235EA Supply
$6.99
New Laptop Power Adapter Charger For HP Compaq Pavilion 90W 19V 474A  7450
New Laptop Power Adapter Charger For HP Compaq Pavilion 90W 19V 474A 7450
$12.99
90W AC Adapter Charger for Compaq Presario V2000 laptop Power Cord PSU Laptop
90W AC Adapter Charger for Compaq Presario V2000 laptop Power Cord PSU Laptop
$10.79
AC Adapter CHARGER POWER for COMPAQ Presario CQ56 148CA CQ56 154CA CQ56 110US
AC Adapter CHARGER POWER for COMPAQ Presario CQ56 148CA CQ56 154CA CQ56 110US
$12.99
OEM AC adapter charger for HP Compaq Presario CQ40 CQ45 CQ50 CQ60 CQ70 100 65w
OEM AC adapter charger for HP Compaq Presario CQ40 CQ45 CQ50 CQ60 CQ70 100 65w
$19.10
Genuine 90W AC Adapter Charger for HP Compaq Presario CQ40 CQ45 CQ50 CQ61 CQ70
Genuine 90W AC Adapter Charger for HP Compaq Presario CQ40 CQ45 CQ50 CQ61 CQ70
$15.99
For HP Compaq Presario F500 F700 A900 NC6220 NC6000 Laptop AC Adapter Charger
For HP Compaq Presario F500 F700 A900 NC6220 NC6000 Laptop AC Adapter Charger
$6.95
Genuine 65W AC Power Adapter Charger Compatible ASUS HP Compaq Presario CQ1 1020
Genuine 65W AC Power Adapter Charger Compatible ASUS HP Compaq Presario CQ1 1020
$16.46
Battery For HP Compaq Presario CQ42 CQ32 CQ62 CQ72 G62 G72 G42 G7 G6 HSTNN Q64C
Battery For HP Compaq Presario CQ42 CQ32 CQ62 CQ72 G62 G72 G42 G7 G6 HSTNN Q64C
$7.49
For HP Compaq Presario CQ42 CQ32 CQ62 CQ72 G72 G7 G6 NBP6A175 HSTNN Q63C Battery
For HP Compaq Presario CQ42 CQ32 CQ62 CQ72 G72 G7 G6 NBP6A175 HSTNN Q63C Battery
$7.49
Battery For HP Pavilion G4 G6 Compaq Presario CQ56 CQ57
Battery For HP Pavilion G4 G6 Compaq Presario CQ56 CQ57
$7.49
Battery For HP G56 G42 G62 G72 Pavilion G4 G6 G7 Compaq Presario CQ42 CQ56 CQ62
Battery For HP G56 G42 G62 G72 Pavilion G4 G6 G7 Compaq Presario CQ42 CQ56 CQ62
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Spare Battery For 593553 001 HP Compaq Presario CQ42 CQ57 CQ72 Laptop 6Cells
Spare Battery For 593553 001 HP Compaq Presario CQ42 CQ57 CQ72 Laptop 6Cells
$7.49
AC Charger Adapter 185V 35A for HP COMPAQ Presario A900 A945US A970TU A980EO
AC Charger Adapter 185V 35A for HP COMPAQ Presario A900 A945US A970TU A980EO
$11.59
Compaq Armada Evo Presario HP Pavilion Asus AC Adapter C01512 New
Compaq Armada Evo Presario HP Pavilion Asus AC Adapter C01512 New
$12.75
laptop Battery For HP Compaq Presario CQ42 CQ57 CQ72 CQ56 MU06 MU09 DM4 G62
laptop Battery For HP Compaq Presario CQ42 CQ57 CQ72 CQ56 MU06 MU09 DM4 G62
$7.49
Battery For HP Compaq Presario CQ42 CQ57 CQ72 CQ56 MU06 MU09 593555 001 DM4
Battery For HP Compaq Presario CQ42 CQ57 CQ72 CQ56 MU06 MU09 593555 001 DM4
$7.49
6 Cell Battery For HP Compaq Presario CQ32 100 CQ32 108TX CQ42 100 CQ42 118TU
6 Cell Battery For HP Compaq Presario CQ32 100 CQ32 108TX CQ42 100 CQ42 118TU
$7.49
MU06 MU09 593553 001 Battery For HP Compaq Presario CQ42 CQ57 CQ72 CQ56
MU06 MU09 593553 001 Battery For HP Compaq Presario CQ42 CQ57 CQ72 CQ56
$7.49
19V 90W AC Adapter Power Charger for HP Compaq Presario 700 800 1700 3000 2500
19V 90W AC Adapter Power Charger for HP Compaq Presario 700 800 1700 3000 2500
$6.58
Genuine HP c8246a AC Power Adapter Charger 45W 19V 316A for HP Presario 289590
Genuine HP c8246a AC Power Adapter Charger 45W 19V 316A for HP Presario 289590
$11.06
For HP Compaq Presario V3000 V6000 C700 F500 Laptop battery
For HP Compaq Presario V3000 V6000 C700 F500 Laptop battery
$7.49
6 Cell 5200mAh Battery For HP Compaq Presario A900 C700 F500 F700
6 Cell 5200mAh Battery For HP Compaq Presario A900 C700 F500 F700
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Battery For HP COMPAQ Presario CQ40 CQ41 CQ45 CQ50 CQ60 CQ50Z CQ61Z
Battery For HP COMPAQ Presario CQ40 CQ41 CQ45 CQ50 CQ60 CQ50Z CQ61Z
$7.49
90W AC Adapter Battery Charger for HP Compaq Presario 2500 2100 Series Black
90W AC Adapter Battery Charger for HP Compaq Presario 2500 2100 Series Black
$8.15
Battery Adapter for HP 593553 001 G42 MU06 MU09 Presario CQ32 CQ42 CQ43 CQ56
Battery Adapter for HP 593553 001 G42 MU06 MU09 Presario CQ32 CQ42 CQ43 CQ56
$8.69
19v 316A adapter cord  Compaq Presario laptop electric power cable wall plug
19v 316A adapter cord Compaq Presario laptop electric power cable wall plug
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Hard Drive Adapter for hp Presario Nec IBM Toshiba Dell Acer Asus Gateway Benq
Hard Drive Adapter for hp Presario Nec IBM Toshiba Dell Acer Asus Gateway Benq
$6.99
90W Laptop AC Power Adapter Charger for HP Compaq Presario Notebook 2100 2500
90W Laptop AC Power Adapter Charger for HP Compaq Presario Notebook 2100 2500
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AC Adapter charger for Compaq Presario CQ60 210CA CQ60 417CA ship from Canada
AC Adapter charger for Compaq Presario CQ60 210CA CQ60 417CA ship from Canada
$12.64
65W 185V 35A AC Adapter Charger for HP Compaq PRESARIO MINI 311 1037NR HP 530
65W 185V 35A AC Adapter Charger for HP Compaq PRESARIO MINI 311 1037NR HP 530
$9.96
65W 185V 35A AC Adapter Charger for HP Compaq PRESARIO C500 C700 2200 C500 CTO
65W 185V 35A AC Adapter Charger for HP Compaq PRESARIO C500 C700 2200 C500 CTO
$9.96
65W AC Adapter charger for Compaq Presario CQ60 416AU CQ60 313SA ship fm Toronto
65W AC Adapter charger for Compaq Presario CQ60 416AU CQ60 313SA ship fm Toronto
$13.39
AC adapter charger cord for Compaq A5H50AV Presario CQ42 CQ50 139WM CQ56 154CA
AC adapter charger cord for Compaq A5H50AV Presario CQ42 CQ50 139WM CQ56 154CA
$12.64
Computer Laptop AC Adapter Charger Compaq Presario 2533T CQ57 229WM CQ60 420US
Computer Laptop AC Adapter Charger Compaq Presario 2533T CQ57 229WM CQ60 420US
$11.99
AC Adapter Charger for HP Compaq Presario CQ60 CQ61 Laptop Power Supply Cord
AC Adapter Charger for HP Compaq Presario CQ60 CQ61 Laptop Power Supply Cord
$8.85
90W Charger Adapter for HP Compaq Presario CQ57 229WM CQ60 216DX CQ62 219WM CQ71
90W Charger Adapter for HP Compaq Presario CQ57 229WM CQ60 216DX CQ62 219WM CQ71
$10.55
AC Adapter Charger Power for COMPAQ Presario CQ56 4520s CQ57 339WM CQ60 427NR
AC Adapter Charger Power for COMPAQ Presario CQ56 4520s CQ57 339WM CQ60 427NR
$8.85
AC Adapter Charger for Compaq Presario CQ60 211DX CQ60 215DX CQ60 615DX Notebook
AC Adapter Charger for Compaq Presario CQ60 211DX CQ60 215DX CQ60 615DX Notebook
$8.85

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