How To Transfer The Power Of The Screwdriver From The Network

How to properly configure a laptop power supply from battery or mains

The main advantage of a laptop is that it is able to work autonomously, thanks to the use of the battery. In connection with this possibility, many users have their own criteria for the duration of laptop battery life.

Users who work long hours without being able to connect to the network require lower power consumption of the notebook. Also, to increase the operating time, it is possible to use a spare battery, which can be purchased separately.

Our article invites you to familiarize yourself with the recommendations of laptop repair masters on the system settings of laptop power plans, as well as the dependence of the operating time on Some characteristics.

The autonomous work of any laptop depends on some factors and system settings:

Battery nameplate capacity;

Battery charge status;

The number and characteristics of tasks that are performed on a laptop.

System icons, namely “battery status” are necessary in order to determine the charge level, as well as the remaining operating time. In autonomous operation, a low battery level requires connection to the power supply. The Windows 7 operating system allows the user to glean a lot of the most accurate information about the battery and the state of the battery. System icons are displayed on the right side of the “taskbar” area, as well as a battery indicator, which in some cases may have several indicators. Each individual indicator belongs to one of the autonomous power sources. Accordingly, one charge level indicates that your laptop has only one source of energy (battery), if there are several such charge indicators, then there are several power sources.

To check the battery charge data, simply move the mouse to the Corresponding system icon. In the notification window that appears, you will see the charge level, which is displayed as a percentage, as well as the remaining battery life, which is displayed in times and minutes. The battery status notification in some mobile devices can be immediately displayed on the desktop, and not in the “taskbar” area. The battery status icon shows the percentage value in the corresponding color. So when the battery is charged more than 25%, we can observe the display of the green color of the icon.

While the charge level drops below 25%, we see a yellow triangle with an exclamation mark inside it on the system icon. When the charge drops to 10 percent, the icon changes its color to orange. The system icon displays the 7% battery level with a red cross in the form of the letter “x” and an additional notification about the need to connect the battery power source, and at 5% your laptop will go into a special “hibernation” mode. All content is saved on the desktop in memory Hard disk, but the laptop power is turned off.

In order to check the battery charge level, click on the system icon “battery status”, as a result of which a window with indicators of all available batteries will appear on the screen. At the same time, the indicator has many useful functions in its structure, this is the battery charge level, and the choice, setting or creating a laptop power plan, and setting the overall screen brightness, and using parameters that save power consumption.

We bring to your attention a detailed description of all the options for setting up a laptop power plan. As we have already said, the battery life of a mobile computer is one of the fundamental criteria for choosing and buying a laptop. And you can increase this time by using the standard settings, defining your special parameters for the laptop power plan. These plans are a set of characteristics of how the system manages power. This control includes various parameters on which the process of energy consumption depends. There are several such control plans and they depend on how and with what intensity you work, as well as on whether your computer is connected to the power supply network or not. So, for example, you can set the period of time after which the monitor will turn off, and then power off the Hard Disk. This setting is quite important at the moment when you leave the laptop, but the battery charge will remain, since the power consumption will be turned off automatically after a specified time. Standard power plans allow you to choose one of three options:

Save energy consumption as much as possible and increase operating time; 2. Ensure system performance at the maximum level; 3. Balanced work of the computer. Each user can choose such an option, which will meet his needs as much as possible. The same schemes are customizable, and you can change any parameter for your specific purposes. Some manufacturers may have more standard power supply patterns. As a rule, loading and operation in any operating system occurs by default with a balanced power scheme. Sometimes computer repair is required to restore battery performance.

“Balanced” energy plan. This scheme is aimed at ensuring that the system works as quickly as possible, but at the same time saves energy at a time when you are NOT performing any active actions, that is, you are NOT working.

Energy Saving Power Plan. It consists in the fact that the system uses a minimum amount of energy, and savings are achieved by lower PC performance. The main goal of this nutritional management plan is to maximize uptime.

Energy plan “High performance”. This power supply scheme is aimed at maximizing the efficiency of the PC. The main requirement of this scheme can be considered that the laptop must be connected to the power supply network and your PC does not need to save battery power. If this scheme is used by the user during autonomous operation of the PC, then we can note the rapid discharge of the battery. The Windows 7 operating system defaults to a high performance pattern that does NOT appear in the system indicator.

In order for this scheme to be displayed on subsequent switching on, it is necessary:

Open the battery charge indicator;

Open the link “Advanced power options”;

In the “Power supply” window, you must select the term and click on it with the mouse “Show additional plans”.

As we have already determined, each power plan has a lot of parameters that ask the system how to manage its power consumption, when and after what period of time to disable certain functions that are not used. In the event that the standard settings of these plans do not suit you, you can create your own, while relying on the standard parameters. You can customize each power plan in the Power Options section. Changing both basic and advanced parameters will help you optimize your laptop and its performance in accordance with the nature of your work and use of your PC.

In order to make it easier to return to the standard settings of the parameters, we recommend creating new power schemes, and not changing the standard ones. In order to change the circuits among themselves, you need to set the switches of the required circuits on the indicator. In order to change any parameters of one of the schemes, you need to go = link “Advanced power options”, which will open the “Power Options” settings window.

This window allows, not only to make a choice from the existing plans, but also to reconfigure any plan. The window also contains a slider at the bottom that allows you to change the brightness of the screen, which changes the brightness of the image. As the screen brightness increases, so does the battery drain. On the left side of this window, you can configure individual parameters, which will be valid regardless of which scheme you choose. The most relevant are the settings for actions when you press the power button, sleep mode or actions with the laptop lid. So, the system can go into sleep mode when closing the lid or pressing the “Sleep” button in order to save battery power. It is worth noting that these settings are different for the laptop’s autonomous operation or operation from the power supply network and you need to configure these parameters.

The Sleep button, power button, or closing the lid can cause one of the following:

“No action required”, which means that the system will not make any changes to the PC;

“Sleep”, provides for the transition of the PC to sleep mode. This achieves a significant reduction in the use of battery power, despite the fact that all operating functions are saved in the laptop’s RAM;

“Hibernation” means that the PC goes into hibernation mode automatically. At this time, all documents and programs that were opened are saved to the Hard disk (as opposed to the “sleep” mode), and the laptop is turned off. This mode provides for the minimum consumption of energy consumption. It is recommended to use this mode if it is not possible to charge the battery and you will not be working on this PC for a long time;

Completion of work. The laptop performs an automatic shutdown. When the laptop enters sleep mode, the system may ask for a password. You can configure this setting in the Password Protection on Wakeup window. Almost all settings for screen brightness, dimming or turning off the display must be configured for the laptop to work, both on battery and from the network. You can set the time to turn off the display in the next window “Power supply” = “Display off setting” = new window “Change plan parameters”. Here you need to choose after what time the system will automatically dim and turn off the display. This time is always counted from the moment when you stopped performing any actions on the PC.

The next setting relates to the application of “sleep mode”. This allows you to keep your work as you leave it, but at the same time your PC significantly saves energy consumption. Also, to save battery power, you can adjust the brightness of the display, because the lower it is, the less power consumption. For THESE purposes, you need to use the brightness slider.

The Change advanced power settings link allows you to configure all power settings. When you click on the link, a new window will open in which the “power supply” dialog will be located. As a rule, standard settings and parameters allow you to adjust the operation of the system, its performance and battery consumption for specific purposes and work. But it may also happen that you need to create your own power plan. For this there is a separate link “Create power plan”. The dialog will be similar to the name of the link. First of all, you must come up with and enter the name of your plan in the appropriate time frame, and then choose on the basis of which standard parameters you will create it.

Then we press “Next”, after which the window “Change plan parameters” opens. In this window, you need to configure the basic power settings, and then save your plan. All additional parameters are available for change in the “Power supply” section. After THESE actions, your plan will appear in the indicator next to the rest of the standard power plans.

We use laptop charging

An excellent option is to use laptop charging. Such devices usually operate with a voltage of 12 to 19 V. This is quite enough to ensure the high-quality operation of the screwdriver. But do not neglect the output current indicators. The closer it is to the required one, the better.

In this case, reworking a screwdriver for mains power is reduced to elementary soldering of wires from the charger to the board in the tool. It is advisable to isolate everything with electrical tape or other similar materials. After that, the wire is brought out and the tool can be used.

Alteration of purchased blocks

It can also be powered from any other commercial power supplies. The alteration process in this case will be almost the same, however, in addition to the resistor, you may need to solder additional diodes. The most important thing is to achieve the required output parameters. And this can be easily done using a combination of components.

Transformer

common power supplies that have proven their reliability and efficiency in many areas. The device consists of a step-down transformer and a rectifier, through which a reduced voltage passes. Rectifiers may vary depending on the number of diodes used.

Such elements are easy to manufacture, cheap and reliable. Therefore, they are often preferred. They provide stable voltage without interference with high maximum power. But there are also several disadvantages. The main disadvantage is bulkiness, with a much lower efficiency than that of pulsed sources. This fact requires the selection of a power supply for the screwdriver with a power greater than that required by the tool. Since part of the capacity will go to Side Processes.

Required materials and tools

Materials and tools for reworking a screwdriver completely depend on the type of tool and the type of power source, as well as its features. But to generalize, there are several main tools:

• Screwdrivers;
• Pliers;
• Knife;
• Insulating materials;
• Electricity supply cable;
• Soldering iron and soldering materials;
• Any case for a future power supply.

Power supply options

Any screwdriver requires much less voltage than a regular socket gives out. Therefore, for recharge, you will definitely need a special converter, at the output of which the required voltage will be obtained. All power supplies are divided into two large groups: pulse and transformer. Let’s consider each of them separately.

Pulse

The principle of operation of pulse systems is that the voltage is first rectified and then converted into a special pulse signal. In this case, it is important to achieve a stable voltage. A transformer winding or resistors can help with this.

Switching power supplies are quite effective and can be used in different conditions. over, they have a high level of protection against short circuits and similar effects. However, in terms of power, impulse systems are clearly inferior to transformer ones. In addition, such units are very capricious to the input voltage. If it is lower than the set, then the element may simply not work.

How to do it yourself

Before remaking a screwdriver, it is necessary to clearly determine what power and what voltage the tool needs to work. From this it will be necessary to proceed.

Then the tool body is opened. The two halves of the case can be fastened with screws or with glue. When disassembling, a knife can be very useful.

After opening the case, a power supply or wire is inserted inside, the contacts of which need to be soldered to the charger. Soldering should be as effective as possible, with the introduction of Special solutions.

The other end of the wire must be designed for power supply. So there should be a fork. It is recommended to make a hole in the case in advance through which the cable will pass.

A homemade power supply can be obtained in several ways. In any case, you will get a full-fledged tool with which you can perform work after connecting to the network. It is advisable to pre-prepare a diagram that will help NOT to make mistakes when creating a block.

Converting a screwdriver to mains power: 5 ways

The value of a screwdriver as a home or construction tool, most often, lies in its portability. However, due to certain circumstances, portability sometimes has to be abandoned in favor of functionality. It is about converting a cordless screwdriver into a mains-powered tool. This process has a number of subtleties, which it is advisable to observe.

Computer power supply

You can make a screwdriver from the network using an unnecessary power supply from a computer. There are many types of such devices, but almost all of them are suitable for a screwdriver. The required wires can be found by color, check the manufacturer’s website.

Power supplies from computers are distinguished by their durability, advanced overload protection and a host of other advantages. They may NOT be very comfortable due to their size, but a long wire will help solve this problem.

The procedure for connecting the computer power supply to the screwdriver:

• Disassemble the block;
• Remove the protection against switching on by disconnecting the green wire from the board;
• This wire must be connected to the black connector on the device;
• Separate all wires except yellow and black;
• These two wires are soldered to the extension cable;
• The other end of the cable is directly connected to the screwdriver;
• All open contacts are isolated if possible.

Thus, a power supply unit for a 14 volt screwdriver will be obtained from a computer device.

There is a way out. reworking the screwdriver in the network

Yes, this loses one of the advantages of cordless tools. mobility. But for work in rooms with access to a 220 volt network, this is an excellent way out. Especially since you give new life to a broken instrument.

There are two concepts of how to make a network out of a cordless screwdriver:

Using a power supply from a personal computer

On the radio market, you can purchase an old power supply from a personal computer for a small cost. We need a version of the “AO” format, which had to be turned off with the key after exiting the operating system.

Experienced users remember such system blocks. The advantage of such a PSU is also that it indicates an honest power. If it says 300W, then you can safely remove 15-16 amperes from the 12-volt output (again referring to Ohm’s law). This is enough to power an average screwdriver.

Such blocks have a power button in the kit. Another advantage is the presence of a cooling fan and an advanced overload protection system.

If you will hide the power supply in a beautiful case, do not forget to leave a hole for ventilation.

The connection is very simple. Black wire (-), yellow wire (12V).

Limitations. a screwdriver with a supply voltage above 14 volts will NOT work.

Making a homemade power supply

If you are familiar with the principles of building electrical circuits, you can make your own power supply. Scheme giving general concepts. in the illustration.

The transformer can be picked up from an old tube TV, or other household appliances. Power 220 volts 250-350W. The main thing is the power supply. donors should not be pulsed.

The voltage on the secondary winding is 24-30 volts. The secondary winding is made from a wire of the corresponding section.

However, if the current of the output winding is not less than 15 amperes (see the transformer specification). is there nothing to worry about.

After losses on the diode bridge (1-1.5 V on the diode), you will get the required output value.

If you have an electrical engineering education. We will make the calculation yourself. Or in a practical way: by connecting a 220 volt 100W incandescent lamp as a load, measuring the output voltage. E

If it exceeds the requirements of the screwdriver. Reduce the number of turns of the secondary winding of the transformer.

We build in a ready-made power supply

To do this, you need to purchase a ready-made block with suitable characteristics and dimensions. There is enough such good on the radio market.

Take the body with you and go to the fitting. When the desired power source is purchased. carefully Separate it from the case.

By placing a screwdriver in the battery box. All components Must be securely fastened.

If necessary, extend the wires between the control board and the transformer. If the circuit touches the metal parts of the transformer during operation, a short circuit will occur.

Since the space in the case allows. spreading the board and transformer for better cooling. Whichever quality power supply you choose, the load will be high and overheating is possible.

It will not be superfluous to fix additional radiators on the power control microcircuits. Operate the screwdriver for a long time, unplug it and touch the radio parts on the control board.

You yourself will understand which elements need heat dissipation. Holes for air circulation can be made in the housing.

Do-it-yourself alteration of the power supply unit will not take much time, and the cost of the purchased module is incomparable with restoring the battery’s performance.

External power supply

Idea Not as absurd as it might seem. Even a large and heavy step-down rectifier can just stand near the outlet.

You are equally tied to the power supply, and to the stuck mains plug. And the low-voltage cable can be made of any length.

IMPORTANT! Ohm’s law says. with the same power, decreasing the voltage. Increase the current! Accordingly, the 12-19 volt supply cord should have a larger cross section than 220 volts.

Battery Disadvantages

• Needs regular recharging. Sooner or later, batteries will run out of charge cycles.
• The cheaper the tool, the faster the rework time will come.

There is nothing wrong with that, but you should be aware of the fact that the manufacturer saves as much as you do. Therefore, the most expensive unit (and this is the battery) will be the cheapest when bundled.

As a result, we get an excellent tool with a serviceable motor and NOT a worn gearbox, which does not work due to a poor-quality battery.

There is an option to purchase a new set of batteries, or replace faulty batteries in the unit. However, this is a budget event. The cost is comparable to buying a new screwdriver.

The second option is to use a spare or old battery from the car (if you have one). But the starter battery is heavy, and the use of such a tandem is not very comfortable.

DIY screwdriver alteration

Consider the option with a remote power supply.

Conversion of a cordless screwdriver to a mains supply

Those who have used a cordless screwdriver have appreciated its convenience. At any time, and not getting tangled up in wires, you can crawl into hard-to-reach niches. Until the battery runs out.

AC adapter for screwdriver in battery housing

If your tool is NOT too powerful, you can place the power supply in the handle or case from damaged batteries.

Reasons why you have to redo the screwdriver

It is very convenient to work with a screwdriver. Especially when it is required to unscrew or tighten a significant number of screws. Removing hundreds or two of screws by hand can turn repairs into hell. A power tool simplifies the process to the point of impossibility. over, if it is powered by a rechargeable battery, which provides mobility and the ability to carry the screwdriver wherever you want.

Alas, there are also disadvantages. The most significant is the short operating time. Under heavy loads, the battery is discharged after half an hour or an hour, while charging takes a comparable or longer time. As a result, you have to wait most of the day for the instrument to be ready. In addition, battery power often limits the power of the device. In the end, the simplest actions require a lot of effort and time.

Also, a cordless screwdriver requires special care in case of long interruptions in use. The fact is that batteries are very demanding in terms of storage and subsequent bringing into working condition. In total, it takes several hours to prepare the advice tool for tightening a dozen screws for some five minutes.

Inserting a battery also increases the weight of the tool. It becomes more difficult to use it, especially on weight. All this makes you wonder how to remake a cordless screwdriver to improve its efficiency.

Power supply requirements

Cordless screwdriver models are powered by a battery, therefore the voltage in the internal network of the device is very different from the standard indicator of a household power supply. If the outlet is 220 volts, then inside the instrument it is only 12 volts. Obviously, it is impossible to make it work without a transformer. precisely, it is possible, but only for a very short moment of short circuit, after which the components of the electrical part will fail.

In addition, the batteries are only capable of supplying direct current. And in a conventional electrical network, the current is alternating. This means that you will also need to assemble a rectifier. Only after that you can think about making changes to the design of the screwdriver.

However, it will still be necessary to provide a falling load characteristic. This is necessary so that with a sharp increase in the load, the tool does NOT fail. In addition, it is desirable to use elements available and later easily subject to replacement if necessary. Then, instead of thinking about how to choose a cordless screwdriver, you can simply assemble your own tool from an existing battery model.

It should be noted that in the ideal case, the assembled power supply unit should also be reliable, as well as small in size and weight. This combination of characteristics will allow you to take advantage of constant power from the mains, while maintaining the device’s mobility.

Instrument device

Before proceeding with the alteration of the screwdriver, you need to understand its device. In any such tool, two parts can be distinguished: mechanical and electrical. The first consists of a motor, a gearbox, a spindle and a chuck, the second includes a transformer, a control chip, a start button, a rotation direction switch and a power supply (battery) connected by wires.

It is advisable to understand the principles of operation of the elements of the electric circuit of the screwdriver. Otherwise, you can simply burn the device by trying to connect it to the wrong load. So before connecting the screwdriver to the network, you should make sure that the components are connected correctly and check their compliance with the recommended values ​​for the electric motor.

Block diagram

The system will be based on a transformer. You can take the available 60-watt models, which are produced by Feron or Taschibra. Of course, we can use other brands as well. However, these samples are quite common and usually differ in acceptable quality and affordable price.

A pair or four diodes are traditionally used to assemble the rectifier. Fewer amounts result in more efficient energy use. But this will require a tap from the midpoint of the transformer winding. Additional smoothing of possible high-frequency oscillations is performed by installing a pair of capacitors at the output: ceramic and electrolytically. They should be mounted in parallel. You also need to add some resistors to ensure that the job starts. If they are not installed, then the power supply of the screwdriver from the network will be useless, the transformer simply will not work, since it is intended to power the lamps. It is also recommended to turn on the LED in this section of the network, which will serve as an indicator of operation.

Connect the power of the screwdriver from the mains

The screwdriver will help out in many difficult situations. But sometimes the tool itself needs help. For example, if you need to replace the power supply and teach the battery model to work from a regular outlet.

Assembly Tips

The best option is to install all the elements in the body of a used battery. This allows you to solve several problems at once. First of all, there is no need to worry about the case for the power supply. In addition, this arrangement provides a fairly simple connection and allows the use of full-fledged batteries. Finally, it’s just convenient.

You can independently convert an outdated cordless screwdriver into a handy tool. This means that work in the house will become much easier to perform.

Reasons why you have to redo the screwdriver

It is very convenient to work with a screwdriver. Especially when it is required to unscrew or tighten a significant number of screws. Removing hundreds or two of screws by hand can turn repairs into hell. A power tool simplifies the process to the point of impossibility. over, if it is powered by a rechargeable battery, which provides mobility and the ability to carry the screwdriver wherever you want.

Alas, there are also disadvantages. The most significant is the short operating time. Under heavy loads, the battery is discharged after half an hour or an hour, while charging takes a comparable or longer time. As a result, you have to wait most of the day for the instrument to be ready. In addition, battery power often limits the power of the device. In the end, the simplest actions require a lot of effort and time.

Also, a cordless screwdriver requires special care in case of long interruptions in use. The fact is that batteries are very demanding in terms of storage and subsequent bringing into working condition. In total, it takes several hours to prepare the advice tool for tightening a dozen screws for some five minutes.

Inserting a battery also increases the weight of the tool. It becomes more difficult to use it, especially on weight. All this makes you wonder how to remake a cordless screwdriver to improve its efficiency.

Power supply requirements

Cordless screwdriver models are powered by a battery, therefore the voltage in the internal network of the device is very different from the standard indicator of a household power supply. If the outlet is 220 volts, then inside the instrument it is only 12 volts. Obviously, it is impossible to make it work without a transformer. precisely, it is possible, but only for a very short moment of short circuit, after which the components of the electrical part will fail.

In addition, the batteries are only capable of supplying direct current. And in a conventional electrical network, the current is alternating. This means that you will also need to assemble a rectifier. Only after that you can think about making changes to the design of the screwdriver.

However, it will still be necessary to provide a falling load characteristic. This is necessary so that with a sharp increase in the load, the tool does NOT fail. In addition, it is desirable to use elements available and later easily subject to replacement if necessary. Then, instead of thinking about how to choose a cordless screwdriver, you can simply assemble your own tool from an existing battery model.

It should be noted that in the ideal case, the assembled power supply unit should also be reliable, as well as small in size and weight. This combination of characteristics will allow you to take advantage of constant power from the mains, while maintaining the device’s mobility.

Instrument device

Before proceeding with the alteration of the screwdriver, you need to understand its device. In any such tool, two parts can be distinguished: mechanical and electrical. The first consists of a motor, a gearbox, a spindle and a chuck, the second includes a transformer, a control chip, a start button, a rotation direction switch and a power supply (battery) connected by wires.

It is advisable to understand the principles of operation of the elements of the electric circuit of the screwdriver. Otherwise, you can simply burn the device by trying to connect it to the wrong load. So before connecting the screwdriver to the network, you should make sure that the components are connected correctly and check their compliance with the recommended values ​​for the electric motor.

Block diagram

The system will be based on a transformer. You can take the available 60-watt models, which are produced by Feron or Taschibra. Of course, we can use other brands as well. However, these samples are quite common and usually differ in acceptable quality and affordable price.

A pair or four diodes are traditionally used to assemble the rectifier. Fewer amounts result in more efficient energy use. But this will require a tap from the midpoint of the transformer winding. Additional smoothing of possible high-frequency oscillations is performed by installing a pair of capacitors at the output: ceramic and electrolytically. They should be mounted in parallel. You also need to add some resistors to ensure that the job starts. If they are not installed, then the power supply of the screwdriver from the network will be useless, the transformer simply will not work, since it is intended to power the lamps. It is also recommended to turn on the LED in this section of the network, which will serve as an indicator of operation.

Connect the power of the screwdriver from the mains

The screwdriver will help out in many difficult situations. But sometimes the tool itself needs help. For example, if you need to replace the power supply and teach the battery model to work from a regular outlet.

Assembly Tips

The best option is to install all the elements in the body of a used battery. This allows you to solve several problems at once. First of all, there is no need to worry about the case for the power supply. In addition, this arrangement provides a fairly simple connection and allows the use of full-fledged batteries. Finally, it’s just convenient.

You can independently convert an outdated cordless screwdriver into a handy tool. This means that work in the house will become much easier to perform.