hao battery

Ion battery protection circuit includes over-charge protection, over current / short circuit protection and over-discharge protection, over charging protection requires high precision, low power IC protection, high-voltage and zero-volt rechargeable and other characteristics.Hp laptop battery This paper describes the three the principle of protection circuits, new features and feature requests.

Li-ion battery is small, high energy density, without memory effect, high cycle life, high-voltage battery and self-discharge rate, etc., and nickel cadmium, nickel metal hydride batteries are not the same, lithium batteries must consider the charge, discharge of security , so as to prevent the characteristic deterioration. overcharge for lithium battery, over discharge, over current and short circuit protection is important, it is usually in the battery pack will be designed to protect the lithium battery protection circuit.

Because of high energy density lithium-ion battery, it is difficult to ensure the safety of the battery. In over-charge state, the battery temperature will rise after the energy surplus, then the electrolyte decomposition and the production of gas, due to rising internal pressure or rupture of the risk of spontaneous combustion; Conversely, over-discharge state, due to decomposition of the electrolyte cell characteristics and durability degradation, thereby reducing the number of charge cycles.

Lithium-ion battery protection circuit is to ensure that such over-charging and discharging of state security, and to prevent the characteristic deterioration. Lithium-ion battery protection circuit is protected by the IC and two power MOSFET structure, which monitors the battery voltage protection IC , when a state of over-charging and discharging of the power switch to the external MOSFET to protect the battery,Hp Omnibook XT1500 battery,Hp F2019 battery, Hp F2019A battery, Hp F2019B battery, Hp OmniBook 6000 battery,Hp F1739A battery, Hp Omnibook XE battery IC protection features are over-charge protection, over-discharge protection and over current / short circuit protection.

Over-charge protection

Over-charge protection IC's principle: when an external charger for rechargeable lithium batteries,Hp Omnibook XT1500 battery
in order to prevent temperature rise caused by increased internal pressure required to terminate the charging status. At this point, the battery voltage protection IC to be detected, when the time arrives 4.25V (assuming the battery charge point 4.25V) is activated over-charge protection, the power MOS turned off by the opening and then closing charge.

In addition, attention must also be due to the excessive noise generated by charging malfunction detection, so determined to overcharge protection. Therefore, you need to set the delay time and delay time can not be shorter than the duration of the noise.

Over-discharge protection

In the case of excessive discharge, caused by decomposition of the electrolyte cell characteristics due to deterioration and the resulting reduction in number of charge cycles. Using lithium battery protection IC to avoid excessive discharge phenomenon, to achieve cell protection.

Over-discharge protection IC principle: In order to prevent over-discharge state lithium batteries, lithium battery connected to the load hypothesis, when the lithium battery voltage is lower than the over-discharge voltage test point (assumed to be 2.3V) will activate the over-discharge protection, the power MOSFET changed by the opening and closing off the discharge, in order to avoid battery over-discharge phenomenon, and will keep the battery low quiescent current standby mode, Hp F2019 battery, when the current is only 0.1uA.

When the lithium battery connected to the charger, and lithium battery voltage is higher than at this time when over-discharge voltage, over-discharge protection be removed. In addition, taking into account the situation of pulse discharge, over-discharge detection circuit has a delay time to avoid errors action.

Over current and short circuit current

For unknown reasons (positive and negative discharge or metal objects being inadvertently) resulted in over-current or short circuit, to ensure the security, the need to immediately stop the discharge.

Principles of over current protection IC is, when the discharge current is too large or short circuit occurs, the protection of IC will be activated off (short circuit) current protection, over current detection at this time the power MOSFET's Rds (on) as a sensor for monitoring resistance the voltage drop the case, if the ratio set by the overcurrent detection voltage is higher then stop discharging the formula is: V-= I × Rds (on) × 2 (V-for the over-current detection voltage, I the discharge current.) Assuming V-= 0.2V, Rds (on) = 25mΩ, the size of the protection current I = 4A.

Similarly, over-current detection delay time must be set to prevent current flow when the unexpected malfunction.

Usually over-current occurs, if removal of over-current factors (for example, the load from the right), will resume its normal state, can be a normal charge-discharge action.

New features lithium battery protection IC

In addition to the lithium battery protection IC functionality, the following new features the same concern:

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1. Overcurrent protection when charging

When connecting charger suddenly occurred when the current (such as damage to the charger), Hp F2019A battery, over current detection circuit immediately, this time Cout will be high into low-power MOSFET turned off by the opening to achieve protection.

V-(Vdet4 over current detection voltage, Vdet4 to-0.1V) = I (charge current) × Rds (on) × 2

2. Overcharging lock mode when

Usually protect IC when the over-charge protection after a delay time, then it will turn off the power MOSFET to achieve the purpose of protection, when lithium battery voltage has dropped to discharge point (over-charge hysteresis voltage) will be back, this time will continue to charge - protection - discharge - charge - discharge. This state of security issues will not be an effective solution, lithium batteries will be repeated the charge - discharge - charge - discharge action, the power MOSFET gate will be repeated alternating high and low voltage in the state, which may cause MOSFET hot, but also reduce the battery life, it is important to lock mode. If the lithium battery protection circuit detects over-charge protection mode when locked,Hp Omnibook XT1500 battery,Hp F2019 battery, Hp F2019A battery, Hp F2019B battery, Hp OmniBook 6000 battery,Hp F1739A battery, Hp Omnibook XE battery MOSFET will not get hot, and safe relatively improved a lot.

After the over-charge protection, as long as the charger connected to the battery pack on charge at this time will be entered into the lock mode. At this point, even if the lithium battery voltage drops is also the case of recharge does not occur, the charger is removed and connected load restore the state of charge and discharge.

3. Reduce the protection circuit component size

Overcharging and short circuit protection to the delay capacitor integrated with the protection of IC inside, to reduce the protection circuit component size.

Performance requirements of the protection IC

1. Overcharging protection of high precision

When the lithium-ion battery over-charge state,Hp F2019B battery, in order to prevent temperature rise caused by increased internal pressure required to close the charging status. Protect the IC will detect the battery voltage, over-charging is detected, the detection of over-charging the power MOSFET so that Closing off the charge. At this point should be noted that over-charging the high precision detection voltage in the battery charging, the battery state of charge to the user is full of concern, taking into account the security problems, so need to allow the state of charge voltage cutoff. to simultaneously satisfy these two conditions, the detector must have high accuracy, precision current detector 25mV, the accuracy will be further improved.

2. Reduce the power consumption of IC protection

With the increasing use of time, has been charged, lithium-ion battery voltage will gradually decrease the value of the last low to the following specifications, this time need to re-charge. If you do not charge and continue to use, may result in leaving the battery due to excessive discharge can not continue to use. To prevent over-discharge protection IC to detect the battery voltage, over discharge detection voltage once they reach the following, you have to make the discharge side of the power MOSFET off and the cut-off discharge. But this time there are natural discharge the battery itself and the protection of IC current consumption exist, so need to protect the IC current consumption to a minimum.

3. Over current / short circuit protection to be a low voltage and high-precision testing requirements

Short-circuit due to unknown causes must immediately stop the discharge.Hp OmniBook 6000 battery Overcurrent detection is based on power MOSFET's Rds (on) for sensor impedance to monitor the voltage drop, the voltage at this time if the ratio is higher than the current detection voltage is stopped when discharge. In order to power MOSFET's Rds (on) the charge current when the effective application of the discharge current is required so that the impedance as low as possible, at present the impedance of approximately 20mΩ ~ 30mΩ, so that the overcurrent detection voltage can be lower.

4. Resistant to high voltage

Connect the battery pack and charger, the instant when the pressure will be generated, so protection of high voltage IC shall meet the requirements.

5. Low battery power

In the protection of state, the static current consumption must be small 0.1uA.

6. Zero-volt rechargeable

Some batteries may be in store in the process because for too long or unusual causes of low voltage to 0V, Hp Omnibook XT1500 battery,Hp F2019 battery, Hp F2019A battery, Hp F2019B battery, Hp OmniBook 6000 battery,Hp F1739A battery, Hp Omnibook XE battery so the need to protect the IC can be achieved when 0V charging.

Prospects Protection IC

As mentioned earlier, the future protection of IC will further improve the detection voltage accuracy, Hp F1739A battery, reduce protection and increase the current consumption of IC malfunction prevention function, while the high voltage charger is connected terminals R & D focus.

In the package, the current has been gradually turned SON6 SOT23-6 package, the package will also CSP, COB products to meet even now emphasize short, light requirements.

Function, the protection IC integrates all the functions do not need to be developed according to different materials, a single lithium battery protection IC, such as only the overcharge protection or over-discharge protection function, which can greatly reduce the cost and size.

Of course, the functional components is a single crystal of the same goals, such as handset manufacturers are facing now will protect the IC, the charging circuit and power management IC, logic IC and the external circuit constitutes a two-chip chipset, but the open circuit to make power MOSFET drop in impedance is difficult to integrate with other IC, Hp Omnibook XE battery even made a special single-chip technology, I am afraid the cost will be too high. Therefore, the protection of the single crystal of IC will take some time to resolve.

Lithium-ion battery cathode material of lithium in the active compounds are usually composed of the negative is a special molecular structure of carbon. Common principal components of the cathode material LiCoO2, charging, added to the battery positive pole of the electric potential of the compound to force the release of lithium ions, Hp laptop battery embedded negative elements were arranged in the lamellar structure of the carbon. Discharge, lithium-ion from the lamellar structure of the carbon precipitation and re-cathode combination of compounds. Lithium-ion movement have a current.

Chemical reaction of lithium-ion battery cathode materials are usually composed of a lithium-active compounds,Hp F2299A battery, Hp F3172A battery, Hp Pavilion ZT1000 battery, Hp Pavilion XZ200 battery, Hp Pavilion ZT1100 battery, Hp Omnibook XT1000 battery, the negative is a special molecular structure of carbon. Common principal components of the cathode material LiCoO2, charging, added to the battery positive pole of the electric potential of the compound to force the release of lithium ions, embedded negative elements were arranged in the lamellar structure of the carbon. Discharge, lithium-ion from the lamellar structure of the carbon precipitation and re-cathode combination of compounds. Lithium-ion movement have a current. Although it should be simple principle, but in the actual industrial production, the practical problems need to be considered much more: cathode material additives required to maintain the activity of multiple charge-discharge, anode material needed to design the molecular structure level to accommodate More lithium ion; fill in the electrolyte between the positive and negative, in addition to maintaining stability, but also need to have good conductivity, reducing the battery internal resistance.

Although there is little lithium-ion battery memory effect nickel-cadmium batteries, memory effect is the principle of crystallization, in the lithium battery is almost not produce this reaction. However, lithium-ion battery capacity after repeated charge-discharge will continue to decline, its causes are complex and diverse. Mainly positive and negative changes in the material itself, from the molecular level, the positive and negative electrodes of lithium ion on the hole to accommodate the structure will gradually collapse, clogging; from the chemical point of view, is the passive activity of positive and negative material, there's the other side to form a stable compounds. Cathode material physics will appear gradually falling off, etc.,Hp F3172A battery, in short, can ultimately reduce the battery charging and discharging process of free movement of lithium-ion number.

Over-charging and over-discharge, lithium-ion batteries will cause permanent damage to the positive and negative, from the molecular level, can be intuitively understood, excessive discharge of carbon anode will lead to excessive release of lithium ions and makes it appear lamellar structure collapsed, over- Rechargeable lithium-ion will too hard to go into negative carbon structure, and makes some lithium-ion can no longer be released. This is also why the lithium-ion batteries are usually equipped with charge and discharge control circuit of the reasons.

Not suitable for the temperature, the internal lithium-ion battery will trigger the reaction of other chemical compounds that we do not want to see, so many positive and negative electrodes for lithium ion batteries with protection of temperature between the membrane or electrolyte additives. In the case of the battery to a certain temperature, the composite membrane electrolyte membrane hole closed or degeneration, increased battery internal resistance until the circuit, the battery will not heat up, make sure battery temperature is normal. And deep charge-discharge lithium-ion battery can increase the actual capacity of it? Experts clearly told me that this is meaningless. They even said that the so-called full charge and discharge using the first three of the "active" in their knowledge of where the two doctors, could not understand what this is necessary. But why so many people of deep charge-discharge capacity after the Battery Information in the label will change it? Will be mentioned later.

Notebook computer lithium-ion batteries are generally with management chip and charge control chips. Management chip in which a series of registers, there is capacity, temperature, ID, charge status, and discharge times and other values. These values ​​are in use will gradually change. Personally, I think, for use in notebook computers in the "use of one month after the full charge-discharge should be a" major role approach is to fix these registers should be properly value, making the battery charge control and battery nominal capacity consistent the actual situation. Main control chip, battery charge control the charging process. Lithium-ion battery charging process is divided into two phases, fast charge constant current phase (the battery indicator light yellow) and constant current decline phase (the battery indicator light flashes green. Constant current fast charge phase, the battery voltage is gradually increased The standard voltage to the battery, Hp Pavilion ZT1000 battery, then under the control of the chip into the constant voltage, the voltage will not rise to ensure that no over-charge, current is increased gradually as the battery level reduced to 0, and the ultimate completion of charging.

Statistics chip power consumption by recording the discharge curve (voltage, current,Hp F2299A battery, Hp F3172A battery, Hp Pavilion ZT1000 battery, Hp Pavilion XZ200 battery, Hp Pavilion ZT1100 battery, Hp Omnibook XT1000 battery, time) can calculate the sample battery power, this is what we read about in the Battery Information wh. Value. The lithium-ion battery in the repeated use, the discharge curve may change, if the chip has been no opportunity to once again read out a complete discharge curve, the calculated power is not accurate. So we need to calibrate the battery charge-discharge depth of the chip.

Finally, I view the maintenance of the battery are:

1. Need not ensure that every time deliberately put off the electricity and the re-charge;

2. A period of time to do a protection circuit placed under the control of deep charge battery power to amend the statistics, but it will not improve your battery's actual capacity.

3. Long without the battery, should be placed in a cool place to weaken its own internal passive reaction speed.

4. Protection is also able to monitor the battery self-discharge, long-term without the battery, should be sufficient to prevent certain amount of power into the battery self-discharge in storage in the discharge of excessive lead to excessive damage.

In fact, the battery is not too much to take into account the use of attention,Hp Pavilion XZ200 battery, in other words is taken into account there is not much use. How many times a battery can be used, perhaps more from differences in the manufacture of the battery itself, the individual differences, rather than use. Choose a good laptop brand reputation, is undoubtedly the future long-life battery one of the guarantees.

Laptop battery fix

(A) causes damage to the battery

Notebook computer battery a long time, often charge less for electricity, and even shows the battery is damaged, the specific performance of a larger resistance, the voltage across the charging up faster. So easy to charge control circuit is determined to have been filled, the capacity will naturally decline. Since the battery internal resistance is relatively large, the discharge voltage drop when a large, fast, so the system is easy to mistakenly believe that the voltage is not enough, lack of electricity. Comparison of the discovery of short battery life, should take appropriate measures.

(B) of the battery refresh program restore the battery discharge time

Great brands have a laptop battery refresh program, we can use it to repair the battery. Example: notebook computers, which is equipped with nickel metal hydride battery (Ni-Mh) batteries, As usual charge and discharge properly, causing the battery to discharge more and more time is short, less than 5 minutes left,Hp Pavilion ZT1100 battery, if carrying a laptop to go to work, then it is very inconvenient, what can restore the battery discharge time?

For the above, we can use the laptop battery has launched the official website of the battery refresh refresh program, rehabilitation discharge time, the specific method is as follows.

(1) the use of AC power to the notebook computer, the first official website to download to a laptop refresh program.

(2) Restart computer, press F8 key to enter boot menu and select Safe Mode DOS.

(3) into the directory where the file you just downloaded, perform a battery refresh program, reading the warning message, as required to insert the floppy disk, and then press the Enter key to execute the self-extracting operation.

(4) Boot the computer with this floppy disk, the screen prompted.

(5) follow the prompts to unplug the AC power, the program will automatically Ni-Mh battery discharge, the discharge is completed, the system will automatically shut down.

(6) The battery temperature is high at this time should not start right away,Hp F2299A battery, Hp F3172A battery, Hp Pavilion ZT1000 battery, Hp Pavilion XZ200 battery, Hp Pavilion ZT1100 battery, Hp Omnibook XT1000 battery, let the battery cool for a while, plug the AC power.

(7) Boot the computer with a floppy disk, the file will automatically run the flash program, and asks the user whether to proceed.

(8) At this point, flash program to start to refresh the battery, the process soon, Hp Omnibook XT1000 battery, when the return to DOS prompt A:> when that refresh is complete.

(9) Turn off the computer, and recharge the battery until the light turns green so far.

(10) The above process is repeated three times to get the best results.

In addition, many lithium battery pack failure is the result of a failure of energy-saving core, this phenomenon can not be avoided. Because each cell batteries can not be exactly the same nature, with some slightly lower quality long after the beginning of aging, and damaged the whole (series after) the discharge curve. Interest and ability of readers to try to open the battery pack, with the help of the multimeter, you can quickly find the damage to the batteries (voltage error). If conditions allow, according to the corresponding parameters of batteries can replace the qualified product.

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Want to experience the fun of WiDi technology brings wireless will be the first to support WiDi technology has a laptop, this time for everyone to recommend several techniques have WiDi laptop equipped with a new platform to facilitate the user to choose.

WiDi that WirelessDisplay abbreviation as the name implies that the wireless display technology, the main way to meet the requirements through the Intel wireless card, using MyWiFi technology and a specific wireless adapter laptop screen content will be immediately sent to the high-definition TVs, projectors and other equipment on the total liberation of notebook users to make notebook computers, from VGA or HDMI and other cables to tie him down, to have more freedom wireless space.

So, what kind of laptop computer to a wireless display technology?Compaq Presario 2100 battery Intel users to the official website below to see a screenshot of your notebook computer meets WiDi conditions.

Successful application of the necessary conditions WiDi Technology (click to enlarge / Photo Source: Intel official website)

In fact, the most important technology to achieve WiDi point is to have Intel wireless card, and then can be achieved through the relevant driving the drive, and the system must be Windows 7, In addition, WiDi currently only supports SD video transmission, which has been published SandyBridge platform to support HD, so the display side is best with HDMI digital video interface that, so that you can achieve the best display.

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Dell XPS 15 (XPS15D-228) Notebook

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Lenovo IdeaPad Y460P-ITH

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Lenovo IdeaPad Y460P-ITH

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Editorial:

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Chronological characteristics of micro-cameras CANON PowerShot SD600 Chargercan be divided into five stages:

First stage: initial stage

The late 18th century, 30 -19 years, due to the use of film, the camera miniaturization possible, but because of the technological level, the basic is the use of the spring struck the camera CANON PowerShot SD630 Charger shutter, so the speed is generally slower than the basic is a twentieth of a second or so , a fixed aperture is basically only a block, generally no more than three gear, and basically is the use of metal plates of different diameter holes drilled to achieve the change the aperture stop of light, because at that time were black and white film can adjust the film speed and washing time, so that film density is correct, and flush out the exposure accuracy of the film. So the camera's construction is relatively simple, be practical. Negative basic shape and no definite criteria.

Phase II: Development of

19th century 50's 30's -19 century capitalist countries since the rapid economic development, the level of the camera to further improve the production and processing.dell 312-0305 battery Coupled with the expansion of hegemony, military intelligence on opposing sides of the theft, as the key to victory for the tiny camera CANON PowerShot SD750 Charger provides a good space for the development work at the micro-compact camera, has a number of speed and aperture options, the use of film Size is basically 8 * 11mm, represents the time in Germany minocycline (Merlot) camera, mini camera can be said that the Rolls Royce. It addition to producing high-quality miniature camera, but also systematically supporting the production of amplification equipment and a number of intelligence personnel to use appropriate accessories such as telescopes and micro-cameras can be connected to the access ring, so as to achieve telephoto effects. When the early minocycline (Merlot) camera auction price is now basically in the million or more.

Phase III: the rapid development of

-19 Century 19th century 50's 70's, the Warsaw Pact and NATO, as the two opposing military blocs, the establishment of the Cold War, space technology competition, war and nuclear threat enveloped the world, great demand for information, the demand for micro camera also increased. Many of the new technologies applied to the micro-camera to, for example, metering systems. At that time, the Japanese camera manufacturers are rapidly developing, the relatively well-known camera CANON PowerShot SD900 Charger manufacturers have also launched their micro-cameras, micro cameras to make this stage of flourishing. For example, "Rollei", "Mami Ya", "Pentax" and so on. Most representative of the Swiss Tissot watch factory making micro-camera, it can be a watch worn on the hands, delicate work, no less than a high degree of precision watch, the auction price is over million now, of course, micro-camera was Life style combined with common items such as "watch-style", "lighter-style", "cigarette-style" and to facilitate intelligence officers.

Phase IV: Transition

70 -80 years the 19th century, the continuous development of electronic, micro cameras, ever-shrinking, but the function was more perfect, dell D5561 battery,is also applied to the production of engineering plastics, making possible mass production of micro-cameras, micro cameras mainly civilian 110 film, when the micro-camera style of diverse species, supporting the lens is complete, part of the micro-camera also features a zoom lens, the telescope and micro-combined-in-one telescopic camera spy camera. There are some tiny camera combined with civilian equipment, such as with radio and other features.

Fifth stage: the decline of

Late 80s, due to the disintegration of the Soviet Union, reducing the use of miniature cameras,dell Inspiron 700m battery, dell Inspiron 710m battery, dell F5136 battery, dell 312-0306 battery, dell 312-0305 battery, dell D5561 battery, dell G5345 battery and the development of technology, the use of transistors and other electronic components, coupled with digital technology in the increasing use of video systems, out of the film size restrictions, so that the volume little hard to imagine, for example, type Casio digital watches launched a small camera. The world is changing, type of miniature camera CANON PowerShot SD1000 Charger negatives from the historical stage slowly into the collectors, who flush the moment when Germany, minocycline (Merlot) camera brands acquired by the Japanese business, the main camera generic production of the classic 135 and 120 8 * 11mm camera techniques, as arts and crafts sales.

Another mini-camera can also press the size of the film by: 1) irregular, mainly before the thirties, spy film based on the actual cut, there is no certain rule. 2) 8 * 11mm film, mainly Germany, when minocycline (Merlot) camera used. 3) 110 film, the standard width of 16mm, the late civil tiny camera to use more of this specification.

Mainly based on the current collectors of the 20th century before the eighties metal miniature camera products, mainly low output,dell G5345 battery high level of technology, the purchase should pay attention to 1) the appearance of the camera, because the camera decided the camera relative to the price of goods, so look to see whether the renovation of 2) shutter and aperture is normal 3) of the lens is removable and mildew 4) whether the repaired fuselage, shoddy.CANON PowerShot SD1100 IS Charger

Players will never not been training hard to play, so why photographers would want to shoot without practice to "the wall" of photos? dell laptop battery Here are 3 little practice, it is worth to them as your daily exercise, and soon you will feel it improves the level of photography.canon mv750i battery

1. Of EXIF ??information

In photography class, I usually began to speak before the show a few works. After the show, someone will raise their hands to ask questions, how a photo shoot. I will first find out the answer, but then it will teach them how to guess and try to set the camera so they can understand in any case how to do.

Professional photo shoot the best way is to analyze the work of professionals, Flickr is the classroom. We should all know that the camera photo files stored in the shooting information - EXIF. Such sites as Flickr, allowing visitors to easily view the photo's EXIF ??information. You can see how other photographers are shooting.

Flickr site of this exercise need to log in, find a good photo, and then read the EXIF ??information. Ask yourself why the author chose this setting, and also what can be improved.

With more and more doing this exercise, you will ask less and less a "how to shoot," the problem. Do more exercise,dell Inspiron 500m battery, dell Inspiron 510m battery, dell Inspiron 600m battery, dell Latitude D500 battery, it is easy to see the camera settings.

2. Only a photo

Most photographers canon bp-608a battery will take a year of course thousands of photos,dell Inspiron 500m battery, but only a few pictures worth as a solo show. In each shooting may have some pictures also, but seldom really wonderful.

Almost all photographers know this, but their actions are just the opposite. Most people still take lots of pictures, and then hope that some of them can achieve a higher level.

While such an opportunity to miss any practice there are some merits, but also let the photographer used if the first two photos are not satisfied, they will give up here to go to other places. Therefore, this exercise is to help photographers get rid of the bad habits: to go out shooting, but only with a photo home. Many times you press the shutter, but in the home before you delete those less than perfect.

This exercise can teach not easily give up a photographer shooting the pictures until you shoot up.

3.1 shoot 10 objects

This exercise may seem a bit contrary to the previous, but their purpose is the same: adhere to the get the shot.

This exercise is: to find a subject, and then facing it to take 10 photos. I led the students in Naples landscape photography canon bp-308b battery to recognize the need for this training. We went to shoot the famous fishing port of Naples, I expected everyone to immediately set up a tripod on the same time. Their photos are a long pier and sunset. This is a good composition, but they can not find a new way of shooting.

So I let them each take 10 different photos. They began to have some difficulties, but end up with pretty pictures. dell Inspiron 510m battery, They took the little details on the docks, piers to capture the moment the impact of water, pier at sunset silhouette shooting and so on. They have found far less than the original photos to find new things to force yourself out of a powerful film.

When attracted to you after something, do not leave too early, insisted the same thing took about 10 photos.

If you can do the exercises seriously, and not just hard at taking pictures and hope to be improved, you will own the technology more and more confident.canon nb-2l battery

You spend hard-earned money to buy his first digital camera CANON PowerShot SD600 Charger, or it may be the first digital SLR camera, you definitely do not want to just pat lightly with the automatic transmission according to commemorate it. You've started reading specifications? You should attend one or two training courses, or buy a bunch of digital photography book? The biggest problem is, where are you going to where and how to get started? I have some good suggestions to help you become a real photographer took to the road.

Even if you do not embark on the road of professional photography CANON PowerShot SD550 Charger, it does not mean you can not make the same good and professional photos. Any new technology might scare beginners or enthusiasts, but do not worry, here are some simple steps you on the road.

1. Feel your camera

You turn the instructions in the Quick Start Guide or see any before, make sure you have the automatic mode with the camera took a few photos.dell Inspiron 600m battery, Feel for your camera, press the shutter does it feel, the camera is in the hand what it feels like. Your camera CANON PowerShot SD450 Chargerwill be your photographic partner. Understanding of each key, not have any function, but all where. Carefully press each button, see what happens. Reason to be familiar with the camera, when you read the manual, on the button above you know where. Once done this, you can begin to see specification of the.

2. Read the instructions

Read the instructions before starting, take a highlighter, dell Inspiron 500m battery, dell Inspiron 510m battery, dell Inspiron 600m battery, dell Latitude D500 battery, the directory of all the sections you already understand the draw. Completed, the section from the beginning not to look at paintings. If you see some too technical, to read the next chapter. Once a chapter has been familiar to highlighter pen used to draw in the directory. When you complete this exercise, you will know what to learn, or read what the tutorial.

3. Practice

This is a progressive training, try different settings, and then see how they affect the final picture. Learn about white balance, it does not make sense to non-photographers, but it is very useful for digital photography, you need to fully grasp it. Take a picture, and then change to a different white balance settings and see what happens. Try all the different camera features, you need to do is to understand all the buttons on the camera, menu and knobs. Then you can play in the creative photography. Learn how to control the camera,dell Latitude D500 battery, the camera, you will know that they will have what you creative results.

Unless an artist or a complete mastery of the workers earn a living tool, or they can not achieve a higher level. You need to do the eyes do not leave the camera viewfinder can be adjusted all the settings and operate the camera in the dark. This may seem a little weird, but photography is a work of capturing the moment, there is no time for you to consider how to adjust the camera settings. Started to do this may be difficult, but as you in-depth study of digital photography, the skill will become the basis for future masterpiece you shoot. As the saying goes, practice makes perfect, so give some time and effort to do the draw. Happy photography! CANON Charger