combattery84

 

Answered the second question, the third question is very simple. Do not doubt the power of your first question, first see if your books are doing, is not like the above said two usb hard drives, cpu at full speed, hard disk read and write crazy, read the disk drive at full speed, while charging the battery, loud the music, the largest screen brightness, wireless network card has

dell Vostro 1720 keyboard hp Pavilion G60 Keyboard

been detected signal, etc., make good use of power management, according to mandate of the working status of the books reasonable adjustments is very important. Many people do not like to use power management, I even saw a lot of friends after the installation of the power management software does not want any kind of management mode is enabled, it is also fitted him to do? Will not want to see how many percent of battery left on it?

The fourth question, the question of who is likely to electronic circuits is a layman. Power to the notebook power supply and battery to the books is different, said first battery-powered, the DC battery output is pure, clean enough, you can directly access the current transformer module, the battery voltage is neither possible nor need to design very high, microelectronic circuit, analog and digital signals to 5V voltage demand is now largely for the sector, remove the

dell Inspiron 1520 keyboard acer Aspire 6930 keyboard

transformer module's efficiency and pressure requirements, 10.8V enough, and the lithium chemical force decisions a power-saving only in the core output voltage of about 3.6V, so many batteries are in series with three ways, 10.8V will become very popular battery voltage. Some of the nominal value of the battery several times larger than the 3.6V of the whole number, such as 3.7V or 11.2V, and so, in fact, in order to protect the battery (a very small number of manufacturers will stop discharging the battery voltage as 3.7V) or in the calculation of the battery When the tricky behavior of design capacity. If you use a power supply, the situation is more complex, first of all need to join the voltage regulator further filter to ensure that the power performance is not very good stability under the circumstances, the voltage regulator after the two-pronged, all the way to the books Working power supply, another way to charge the battery, power supply to the books happened in that part of the battery when the same, and that part of the battery need to charge the battery charge control circuit can be

Dell inspiron 9200 Keyboard Dell M1330 Keyboard

 

current reaches the merits, the output voltage is reduced to 95% of nominal voltage, or other ratio, the manufacturers of the product according to the different needs of the load can be set higher or lower ratio, the current value is the nominal current. The ibm16V 72W power adapter such as the nominal current is 4.5A (16 * 4.5 = 72, nonsense). If the load resistance is too low, causing the output current exceeds the nominal current, generally two things will happen, one is the individual components of the cooling capacity of the heat caused more than burn damage caused by power, and the other is the thermal design margin left, merely reflect the output voltage is further reduced, if reduced too much may cause the load not work correctly.

Understanding of these concepts, we can determine the second issue of this article. The same nominal power supply voltage, output current is different from the same can not be used in the books. The basic principle is that a large nominal current of the power can replace the small nominal current power supply. Some friends are misunderstood, that a large nominal current of the power will burn books, because the current big thing. How much current is actually the same in the case of the voltage depends on the load, that is, the work books, when the books when the high-load operation, the current larger, the books go into standby when the current is smaller, short current equal increase in the books The voltage 

Dell Inspiron B130 Keyboard Dell Inspiron 9300 Keyboard

divided by the books on the equivalent resistance. Nominal current of the power supply has a large enough current margin, will not replace the current power after a small nominal output voltage is too low or overheating situation. On the contrary, with a small current power supply to replace the current existence of such a large risk. But some friends instead of 72w with 56w of power have no problem with it because the design of the power adapter is usually left a certain margin, the load must be less than the power supply power, so this place is in general use feasible, but the remaining power supply power margin to a few, the books once you pick a lot of peripherals, such as the two usb hard drives, and cpu at full speed, then there is a base, the above read the disk to a drive at full speed, then with the same time charging the battery, estimated to dangerous, to be ready to feel the power you are not already boiled eggs. 72w more than the 16w 56w adapter is to cope with such situations. So it is best not to use low current power supply instead of high-current power supply. If you really do, conditional friends can think of ways to Test your books, when the maximum consumption of the actual needs of current measurement method is very simple, a socket, a plug, a current meter, a few wires, a 

Dell Inspiron 6000 Keyboard Dell NC929 keyboard

 

soldering iron can be. If the nominal current in your power within, of course, is safe.

 

Power adapter tips
Power adapter
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-?

Hp Pavilion DV9000 keyboard Dell D510 keyboard

In general, regular power adapter is not necessarily true no-load voltage and nominal voltage of exactly the same as the characteristics of electronic components can not be completely consistent, it allows a certain degree of error, the need for civilian control of the situation based on usage to 0.1% about 5%. The smaller the error, the consistency requirements of the higher electronic components, industrial production, the higher the cost, the price of course, the more expensive.

Second is the power of the nominal current value. Regardless of any power supply has a certain internal resistance, so when the power supply output current when the pressure drop in internally generated, equal to the output current multiplied by the power supply internal resistance. Lead to two things, one is heat, equal to the square of the output current multiplied by resistance, so the power will be hot, and the other is the output voltage to the internal nominal voltage minus the voltage drop, causing the output voltage decreases. The design is usually considered after the completion of heat dissipation, generally limits a current value, when the output 

Dell Inspiron 1300 keyboard Dell H5639 keyboard

Keyboard and mouse clean.

toshiba PA-1750-01 Adapter toshiba PA-1700-02 Adapter

Step 1, the keyboard upside down, slap the keyboard, the keyboard card keys will cause the debris to shoot the keyboard.
Step 2, use a mild detergent or a computer keyboard cleaning agents remove difficult to remove stains, scrub with a damp cloth and dry the keyboard.
Step 3 Clean the keyboard with a cotton swab inside the gap dirt.

hp Pavilion DV6500 Adapter toshiba PA-1600-02 Adapter

Similarly, use the mouse after a long time, there will not listen to the command of the situation. Then dust on the need to be handled. In general, the mechanical mouse just need to clean up the "body" in the rolling ball and roll axis can be.
Step 1 Position the mouse at the end of the screw down, open the mouse.
Step 2 Use the mouse to scroll cleaners remove dirt ball and roll axis, and then the mouse can be installed.
The optical mouse to use more of seal design, so dust and dirt will not enter the house. Usually use the mouse, it is best to use the mouse pad, this will prevent dust and dirt into the mouse.
3. Chassis shell clean. Since the chassis is usually placed below the computer desk, usually not too much attention to sanitation, the enclosure is easily attached to the chassis of dust and dirt. We can dust with a dry cloth first removed, then dip a cloth dampened with water cleaning agent of some stubborn stains wipe, and then brush gently brush the surface of the chassis rear of the dust can be a variety of interfaces.
Four of inner cleansing

gateway ADP-65HB BB Adapter hp Pavilion DV7 Adapter

After completion of cleaning external equipment, the most important host internal cleansing began. Since the chassis is not sealed, so after a period of time will accumulate a lot of dust inside the chassis, so that the operation of computer hardware is very bad, very easily lead to excessive dust computer failure, or even the serious consequences caused by burning of the hardware, so the internal host The dust is very important and need to regularly, usually once a month is appropriate dust. More work needs to complete a regular basis, usually a simple way when cleaning the cleaning of a computer case.
1. Disassembly.
Note: The demolition of the former, we must shut down, and then release the body to wear anti-static gloves, static, or only after the following operation.
Step 1 First, unplug all the peripherals connected the back of the chassis, the chassis with a screwdriver under the back of a few screws, remove the chassis cover.

dell PA-21 Adapter toshiba PA3469U-1ACA Adapter

Step 2 and then put the host lying, so the motherboard down the window with a screwdriver on the edge of strip screws fixed the card, and then with both hands clenched on the edge of the interface card, unplug the interface card straight up.

  1. Hardware: the computer, the screen (monitor) is the external communication of the eye, eye injury, it is also the culprit for children. Therefore, the first step to avoid harm, of course, have a good display.Toshiba Satellite 4000 Adapter toshiba protege 4010 Adapter General standard with current computer is SUPER-VGA15 "800 * 600 size main Basically, not very different, but, in essence, a penny, for a half, in the same size should be chosen on the low radiation, high-quality non-interlaced scanning, magnetic, and power and other considerations. Of course, the installation of protective goggles is another to enhance function, so, in the purchase rate and the radiation efficiency of light have to pay more attention, so just install a shading mirror, but more of a burden on the eye damage. eventually, to remind the reader, if the budget permits, large size and high resolution, of course, is a better choice.

  2. Environmental improvement: With the proper equipment, but also with a good environment in order to further reduce damage. The environmental improvement means: adequate lighting, use of plants greening of the environment, select the appropriate use of computer tables and chairs for children, etc., with these environments is to Dell Inspiron 1150 Adapter Acer Aspire 3100 Adapter prevent children in the course because of discomfort caused by bias.

  3. Teaching methods: Children in the use of a computer, and timely to remind their parents to correct, is the most appropriate opportunities for education, because the use of computers caused by the adverse effects are often slow accumulation, especially on the eye injury, if the parents can not correct the children in the early strabismus, gaze, close to the watch and other bad actions, then, once can go to the hard to develop.

  4. Habit: Habit is a good method, first, to establish the correct mode of operation, such as the eyes to maintain higher than the screen, distance forty-five to seventy centimeters away from the computer screen when you boot a long arm distance away from the screen after boot back over ninety centimeters in order to avoid radiation damage, these are good habits.toshiba satellite A135 Adapter acer LC.ADT01.001 Adapter dell inspiron 2500 Adapter

  5. Health campaigns: In addition to good software and hardware and the environment is more important is to have an eye health campaign easy to learn, first gently close your eyes, the eyeballs from left to right slowly rotates, then for five times the opposite direction, slowly open my eyes for ten ~ wink fifth movement, gaze far away again three to five minutes, every twenty ~ thirty seconds, and finally with warm towel (if not to your hands rub back and forth heat) light cover on the eyes.

  In short, if any kind of learning tool is not good, bad habits, improper methods, are the cause of damage, although the impact of computers on the eyes is inevitable fact, but if we have the correct concept, the injury is not absolute.

Q: Some tips on computer, as well as tips to protect your computer knowledge or who? Normal 0 7.8 磅 0 2 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:普通表格; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Laptop ac adapter AC adapter laptop keyboard
Hope a lot of answers, thank you! ''Urgently now! ''
(Asked by: xuexizhiren, Question Time :2011-04-12)


 A: The use of computers, the eyes on the screen every day, file, keyboard to move, coupled with the brightness and the line of sight between the viewpoint frequent changes can lead to eye discomfort, eye muscle fatigue, temporary decreased visual acuity, secondary headaches.
Room area of ​​all machinery and equipment should be 5-7 times the total area, interior clear height of not less than 2.5 meters. Equipment placement, should be the operator for windows and windows in parallel with the full use of natural light, but should avoid direct exposure to light to the display. Do not display above the top of the eye. The human eye is the best view of 30 degrees below the screen. Screen size should be at least 38 cm (diagonal measurement), the distance from the human eye is appropriate to 45-60 cm, 50 cm best, screen and document holder with the eye should be kept equal distance, so as not to keep the eyes of the operator Turn the neck and body, causing fatigue. Add a computer screen special color filter plate, you can block the rays, but also make the screen light and soft, reduce eye irritation. Keyboard position should be lower than the desk.lcd screen Acer AC Adapters
Computer operating activities per hour, get up, rest for 15 minutes, do eye exercises, visual fatigue and muscle fatigue contribute to the timely elimination. Contact with the display time of pregnancy is less than 20 hours per week is appropriate. Do not smoke indoors, because smoking can accelerate the disappearance of small negative ions. Often use ultraviolet disinfection, to make up for lack of air conditioning and reduce pollution. In fine weather, you should open the windows for ventilation time, increase the indoor air concentration of negative ions and fresh air.
Experts advise computer users to have self-protection:

1. Use of computers, should be more blink of an eye, every 1-2 hours to rest for 15 minutes;

2. Attention should be below the screen;

3. In order to avoid reflections and are not clear, the computer should not be placed on the opposite side or back windows; Normal 0 7.8 磅 0 2 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:普通表格; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} compaq AC Adapters dell AC Adapters

4. Do not seen the computer in the dark, because the contrast between black and white damage to eyes.

In addition, some eye protection will be helpful to you, such as various hp AC Adapters toshiba AC Adapters computer Shibao Ping, these Shibao Ping reduced to a certain extent, the radiation computer screen and computer screen flicker stimulation of the eyes

Hard drive

In a stable condition as possible, to avoid shaking the place easy to operate in the notebook. Switch process is most vulnerable when the hard disk. At this point the hard disk bearing speed yet stable, if vibration, can easily cause a bad track. Once per month and re-scan the disk to improve disk access efficiency.

Laptop bag
Acer AC Adapters compaq AC Adapters dell AC Adapters
Laptop computers are required to carry out regular use, the outdoor wind and rain may often encounter bad weather, and the bumps are inevitable, then, to buy a laptop for your work well, solid and reliable laptop bag is particularly necessary. Some laptop bag with a waterproof fabric, can effectively prevent rainwater on the laptop LCD, and other internal components of the erosion damage; and thick package can also minimize the impact on the fragile LCD screen damage.

Although the current war of the business notebook play "full swing", a variety of price notebook everywhere, but easily damaged as a high-tech products, at all times there care should be added. Once you are falling into disrepair and hp AC Adapters toshiba AC Adapters maintenance caused by the loss of important data, and then spend more money to restore energy and can be the regret of the. Therefore, only the normal use of the process to pay more attention, pay attention to use the method to a more extended life of your laptop.
Battery Laptop ac adapter AC adapter
When you first get your notebook computer, as far as possible the battery is fully eight hours, allowing your battery to maintain the best condition. For most users accustomed to using a laptop computer each time, plug the AC power supply, very little battery-powered laptop computers. Laptop battery should be at least a month to supply one or two times the battery completely run out, connect the AC one is full. In particular, caution is this: for the rechargeable battery, the "full charge with a dry" beneficial and harmless, but done little trouble. In addition, when the best off charging laptop, the battery can be fully charged, unplug the power not to charge half-way, In addition, using a laptop with a power supply, you should be careful not to let the battery has been in a state of charge, otherwise it will reduce short battery life.

Keyboard laptop keyboard lcd screen



Accumulation of dust on the notebook keyboard, used a small brush to clean the cracks, or use the camera lens is usually in high-pressure jet cleaning tank, blowing the dust, or use a handheld vacuum cleaner to remove dust and debris on the keyboard. Clean the keyboard surface, soft cloth dipped in a little cleaner, in the case of gently wipe off the keyboard surface. In addition, professional laptop service center to a professional engineer by the dust treatment, is a tricky part of the business people passing through.