| Output current max. | 0 to 10 A |
| Rated output voltage DC | 24 V |
| Output power, max. | 91.2 W |
Switching power supplies
181 - 183
| Output current max. | 12 A |
| Rated output voltage DC | 24 V |
| Output power, max. | 192 W |
| Output current max. | 12 A |
| Rated output voltage DC | 24 V |
| Output power, max. | 192 W |
Switching power supplies are an important component in electronic devices and offer many advantages over conventional linear power supplies. They are used in a wide variety of applications, including computers, cell phones, televisions and many other electronic devices.
A switching power supply operates on the basis of a circuit design that allows the input voltage to be converted into a stable output voltage. Unlike linear power supplies that simply reduce the input voltage, switching power supplies use a switch to quickly turn the input voltage on and off. This switch is controlled by a regulator that controls the switching frequency and the duration of switching on and off.
The main advantage of switching power supplies is their high efficiency. Since they do not simply reduce the input voltage, but convert it, they can use most of the energy and lose less energy in the form of heat. As a result, switching power supplies are smaller, lighter and more energy efficient than linear power supplies. This is particularly important in devices such as laptops and smartphones, where long battery life and low heat generation are crucial.
Another advantage of switching power supplies is their ability to precisely regulate the output voltage. By using a regulator, the output voltage can be adjusted according to the requirements of the device. This enables a precise voltage supply and protects the device from voltage fluctuations and spikes.
In addition, switching power supplies offer greater input voltage flexibility. They can work with different input voltages, which makes them ideal for use in different countries where different voltages are used. This is especially important for travelers who want to use their electronic devices worldwide.
Although switching power supplies offer many advantages, there are also some disadvantages. For example, they generate electromagnetic interference that can affect other electronic devices. To reduce this interference, switching power supplies must be equipped with filters and shields. They can also be more expensive than linear power supplies because they require more complex circuitry and components.
Overall, switching power supplies are an important technology used in many electronic devices. They offer high efficiency, precise voltage regulation and input voltage flexibility. Although they have some drawbacks, their advantages outweigh them, making them a popular choice for power in a variety of applications.
A switching power supply operates on the basis of a circuit design that allows the input voltage to be converted into a stable output voltage. Unlike linear power supplies that simply reduce the input voltage, switching power supplies use a switch to quickly turn the input voltage on and off. This switch is controlled by a regulator that controls the switching frequency and the duration of switching on and off.
The main advantage of switching power supplies is their high efficiency. Since they do not simply reduce the input voltage, but convert it, they can use most of the energy and lose less energy in the form of heat. As a result, switching power supplies are smaller, lighter and more energy efficient than linear power supplies. This is particularly important in devices such as laptops and smartphones, where long battery life and low heat generation are crucial.
Another advantage of switching power supplies is their ability to precisely regulate the output voltage. By using a regulator, the output voltage can be adjusted according to the requirements of the device. This enables a precise voltage supply and protects the device from voltage fluctuations and spikes.
In addition, switching power supplies offer greater input voltage flexibility. They can work with different input voltages, which makes them ideal for use in different countries where different voltages are used. This is especially important for travelers who want to use their electronic devices worldwide.
Although switching power supplies offer many advantages, there are also some disadvantages. For example, they generate electromagnetic interference that can affect other electronic devices. To reduce this interference, switching power supplies must be equipped with filters and shields. They can also be more expensive than linear power supplies because they require more complex circuitry and components.
Overall, switching power supplies are an important technology used in many electronic devices. They offer high efficiency, precise voltage regulation and input voltage flexibility. Although they have some drawbacks, their advantages outweigh them, making them a popular choice for power in a variety of applications.
What are switched-mode power supplies and how do they work?
Switching power supplies are electronic devices that use a non-linear method to convert electrical energy. They are used for the power supply in various electronic devices such as computers, televisions, cell phones and household appliances.
The operation of a switching power supply consists of several steps:
1. Rectification: The AC input signal is converted into a pulsating DC voltage by a rectifier diode. The negative half-waves are removed and only the positive half-waves remain.
2. Smoothing: The pulsating DC voltage is smoothed by a capacitor to reduce the voltage fluctuations and generate an almost constant DC voltage.
3. High-frequency switching: The smoothed DC voltage is converted into a high frequency, usually in the range of a few kilohertz to several megahertz. This is achieved by a switching transistor circuit.
4. transformer: The high-frequency voltage is converted to a lower or higher voltage value by a transformer. This enables adaptation to the requirements of the device to be supplied.
5. Rectification and smoothing: The transformed voltage is rectified and smoothed again to generate a stable DC voltage.
6. Regulation: A feedback circuit monitors the output voltage and adjusts the switching frequency or other parameters to ensure that the desired output voltage remains constant, regardless of load changes.
The advantage of switching power supplies over conventional linear power supplies is that they work more efficiently and generate less heat. This enables a more compact design and a higher power density. However, switching power supplies are more complex in design and can generate electromagnetic interference, which must be minimized by suitable filters.
The operation of a switching power supply consists of several steps:
1. Rectification: The AC input signal is converted into a pulsating DC voltage by a rectifier diode. The negative half-waves are removed and only the positive half-waves remain.
2. Smoothing: The pulsating DC voltage is smoothed by a capacitor to reduce the voltage fluctuations and generate an almost constant DC voltage.
3. High-frequency switching: The smoothed DC voltage is converted into a high frequency, usually in the range of a few kilohertz to several megahertz. This is achieved by a switching transistor circuit.
4. transformer: The high-frequency voltage is converted to a lower or higher voltage value by a transformer. This enables adaptation to the requirements of the device to be supplied.
5. Rectification and smoothing: The transformed voltage is rectified and smoothed again to generate a stable DC voltage.
6. Regulation: A feedback circuit monitors the output voltage and adjusts the switching frequency or other parameters to ensure that the desired output voltage remains constant, regardless of load changes.
The advantage of switching power supplies over conventional linear power supplies is that they work more efficiently and generate less heat. This enables a more compact design and a higher power density. However, switching power supplies are more complex in design and can generate electromagnetic interference, which must be minimized by suitable filters.
What advantages do switching power supplies offer compared to conventional power supplies?
Switch-mode power supplies offer several advantages compared to conventional power supplies:
1. High efficiency: Switch-mode power supplies can achieve a high efficiency of up to 90% or more, while conventional power supplies often only have an efficiency of around 60-70%. This means that switching power supplies consume less energy and generate less heat, which reduces both energy consumption and cooling requirements.
2. Compact size: Switch-mode power supplies are generally smaller and lighter than conventional power supplies. This makes them ideal for applications where space is a limited resource, such as in portable electronic devices.
3. Wide input voltage range: Switch-mode power supplies can operate in a wide input voltage range, which means that they can be operated with both alternating current (AC) and direct current (DC). This enables greater flexibility in the power supply.
4. Better stability: Switch-mode power supplies generally offer better output voltage stability. They are able to compensate for fluctuations in the input voltage or load changes and provide a constant output voltage.
5. Lower disturbance emissions: Switch-mode power supplies generate less electromagnetic interference and noise compared to conventional power supplies. This makes them more suitable for sensitive electronic devices that could be affected by such interference.
6. Higher power density: Switch-mode power supplies enable a higher power density as they are able to provide more power in a smaller space. This is particularly important in applications where high performance is required in a limited space, such as in computers or telecommunications systems.
Overall, switch-mode power supplies offer an efficient, compact and stable power supply solution that is advantageous in many applications.
1. High efficiency: Switch-mode power supplies can achieve a high efficiency of up to 90% or more, while conventional power supplies often only have an efficiency of around 60-70%. This means that switching power supplies consume less energy and generate less heat, which reduces both energy consumption and cooling requirements.
2. Compact size: Switch-mode power supplies are generally smaller and lighter than conventional power supplies. This makes them ideal for applications where space is a limited resource, such as in portable electronic devices.
3. Wide input voltage range: Switch-mode power supplies can operate in a wide input voltage range, which means that they can be operated with both alternating current (AC) and direct current (DC). This enables greater flexibility in the power supply.
4. Better stability: Switch-mode power supplies generally offer better output voltage stability. They are able to compensate for fluctuations in the input voltage or load changes and provide a constant output voltage.
5. Lower disturbance emissions: Switch-mode power supplies generate less electromagnetic interference and noise compared to conventional power supplies. This makes them more suitable for sensitive electronic devices that could be affected by such interference.
6. Higher power density: Switch-mode power supplies enable a higher power density as they are able to provide more power in a smaller space. This is particularly important in applications where high performance is required in a limited space, such as in computers or telecommunications systems.
Overall, switch-mode power supplies offer an efficient, compact and stable power supply solution that is advantageous in many applications.
How efficient are switching power supplies and how does their efficiency affect energy consumption?
Switch-mode power supplies are generally very efficient and highly effective. The efficiency indicates how well the power supply unit converts the electrical energy fed in into the desired output power. High efficiency means that less energy is lost in the form of heat loss.
The efficiency of switching power supplies can vary depending on the load. At low loads, the efficiency may be slightly lower, while it normally increases at higher loads. As a rule, however, the efficiency of switching power supplies is between 80 and 95 percent.
The efficiency of switching power supplies has a direct influence on energy consumption. The more efficient the power supply unit is, the less energy is lost in the form of heat loss. This means that less electrical energy is required to generate the desired output power. This leads to a reduction in energy consumption and therefore to cost savings.
In addition, the efficiency of switching power supplies also helps to reduce the environmental impact. Less energy consumption means less use of resources and lower CO2 emissions.
When purchasing electronic devices, it is therefore important to pay attention to the efficiency of the switching power supplies they contain in order to save energy and costs and to protect the environment.
The efficiency of switching power supplies can vary depending on the load. At low loads, the efficiency may be slightly lower, while it normally increases at higher loads. As a rule, however, the efficiency of switching power supplies is between 80 and 95 percent.
The efficiency of switching power supplies has a direct influence on energy consumption. The more efficient the power supply unit is, the less energy is lost in the form of heat loss. This means that less electrical energy is required to generate the desired output power. This leads to a reduction in energy consumption and therefore to cost savings.
In addition, the efficiency of switching power supplies also helps to reduce the environmental impact. Less energy consumption means less use of resources and lower CO2 emissions.
When purchasing electronic devices, it is therefore important to pay attention to the efficiency of the switching power supplies they contain in order to save energy and costs and to protect the environment.
What different types of switching power supplies are there and what are they used for?
There are different types of switching power supplies, which offer different attributes and advantages depending on the application. Here are some of the common types of switching power supplies:
1. Linear regulator: Linear regulators are a simple type of switching power supply that maintains a constant output voltage. They can be found in many electronic devices, e.g. computers, televisions and audio equipment.
2. Switching regulator: Switching regulators are more efficient than linear regulators and are often used to power high-power devices such as laptops, cell phones and electric cars. They convert the input voltage into a pulsating DC voltage and then filter out the DC voltage component to generate a stable output voltage.
3. Isolating transformers: Isolating transformers are used to isolate the input and output circuits from each other. They are used in devices that require galvanic isolation between input and output circuits to ensure safety and protection against electrical interference.
4. Switching regulator with galvanic isolation: This type of switching power supply combines the advantages of a switching regulator with galvanic isolation between input and output. They are often used in industrial applications, medical devices and telecommunications to ensure a safe and trouble-free power supply.
5. Pulse width modulation (PWM) power supply units: With this type of switching power supply, the output voltage is modulated by controlling the switch-on time of the switch. They are often used in audio amplifiers and LED lighting systems.
6. Flyback power supplies: Flyback power supplies are a special type of switching power supply that enable a high voltage conversion. They are used in applications such as televisions, monitors and chargers.
This list is not exhaustive, as there are many other specialized types of switching power supplies developed for specific applications. Choosing the right switching power supply depends on the specific requirements of the application, including power requirements, efficiency, size, cost and safety requirements.
1. Linear regulator: Linear regulators are a simple type of switching power supply that maintains a constant output voltage. They can be found in many electronic devices, e.g. computers, televisions and audio equipment.
2. Switching regulator: Switching regulators are more efficient than linear regulators and are often used to power high-power devices such as laptops, cell phones and electric cars. They convert the input voltage into a pulsating DC voltage and then filter out the DC voltage component to generate a stable output voltage.
3. Isolating transformers: Isolating transformers are used to isolate the input and output circuits from each other. They are used in devices that require galvanic isolation between input and output circuits to ensure safety and protection against electrical interference.
4. Switching regulator with galvanic isolation: This type of switching power supply combines the advantages of a switching regulator with galvanic isolation between input and output. They are often used in industrial applications, medical devices and telecommunications to ensure a safe and trouble-free power supply.
5. Pulse width modulation (PWM) power supply units: With this type of switching power supply, the output voltage is modulated by controlling the switch-on time of the switch. They are often used in audio amplifiers and LED lighting systems.
6. Flyback power supplies: Flyback power supplies are a special type of switching power supply that enable a high voltage conversion. They are used in applications such as televisions, monitors and chargers.
This list is not exhaustive, as there are many other specialized types of switching power supplies developed for specific applications. Choosing the right switching power supply depends on the specific requirements of the application, including power requirements, efficiency, size, cost and safety requirements.
How are switched-mode power supplies dimensioned and what factors need to be taken into account?
Switch-mode power supplies are usually dimensioned by taking into account the power requirements of the system to be supplied. The factors that must be taken into account when dimensioning a switching power supply include
1. Output power: The maximum power that the switching power supply must deliver in order to supply the system. This is normally specified in watts.
2. Input voltage: The voltage available to the switching power supply. This can vary depending on the application, e.g. 230V AC for operation in households or 12V DC for operation in cars.
3. Output voltage: The voltage that the switching power supply must supply in order to power the system. This is normally specified in volts and can be a fixed or variable voltage.
4. Efficiency: The efficiency of the switching power supply, i.e. the percentage of input power that is converted into output power. Higher efficiency means lower losses and better energy utilization.
5. Current carrying capacity: The maximum current that the switching power supply can supply to the system. This is normally specified in amperes.
6. Ambient temperature: The temperature at which the switching power supply is operated. This can affect the performance and reliability of the switching power supply and must therefore be taken into account when dimensioning.
7. Protective functions: Any required protective functions such as short-circuit protection, overvoltage protection or overload protection should also be taken into account in the dimensioning.
Once these factors have been taken into account, the switching power supply can be dimensioned by selecting a suitable switching power supply model that meets the necessary power and voltage requirements.
1. Output power: The maximum power that the switching power supply must deliver in order to supply the system. This is normally specified in watts.
2. Input voltage: The voltage available to the switching power supply. This can vary depending on the application, e.g. 230V AC for operation in households or 12V DC for operation in cars.
3. Output voltage: The voltage that the switching power supply must supply in order to power the system. This is normally specified in volts and can be a fixed or variable voltage.
4. Efficiency: The efficiency of the switching power supply, i.e. the percentage of input power that is converted into output power. Higher efficiency means lower losses and better energy utilization.
5. Current carrying capacity: The maximum current that the switching power supply can supply to the system. This is normally specified in amperes.
6. Ambient temperature: The temperature at which the switching power supply is operated. This can affect the performance and reliability of the switching power supply and must therefore be taken into account when dimensioning.
7. Protective functions: Any required protective functions such as short-circuit protection, overvoltage protection or overload protection should also be taken into account in the dimensioning.
Once these factors have been taken into account, the switching power supply can be dimensioned by selecting a suitable switching power supply model that meets the necessary power and voltage requirements.
What role do switching power supplies play in the electronics industry and how have they influenced the development of electronic devices?
Switch-mode power supplies play a crucial role in the electronics industry as they provide an efficient and reliable power supply for electronic devices. In contrast to conventional linear power supply units, switching power supply units convert the alternating current from the socket into direct current, which is required by electronic devices.
The development of switching power supplies has had a major impact on the electronics industry, particularly with regard to the miniaturization of electronic devices. Switching power supplies are more compact and lighter than linear power supplies, which has made it possible to make electronic devices such as cell phones, laptops, tablets and other portable devices smaller and more portable.
In addition, switched-mode power supplies are also more energy-efficient than linear power supplies. They can regulate the flow of electricity more efficiently and minimize energy losses. This has helped to improve the overall energy efficiency of electronic devices and reduce energy consumption.
Switch-mode power supplies also have greater flexibility in terms of input voltage. They can be used in different countries with different mains voltages as they can automatically adjust the input voltage.
Overall, switching power supplies have accelerated the development of electronic devices and enabled them to be smaller, more energy-efficient and more versatile. They are an essential part of today's electronics industry and have helped drive progress in areas such as communications, consumer electronics, medical technology and many others.
The development of switching power supplies has had a major impact on the electronics industry, particularly with regard to the miniaturization of electronic devices. Switching power supplies are more compact and lighter than linear power supplies, which has made it possible to make electronic devices such as cell phones, laptops, tablets and other portable devices smaller and more portable.
In addition, switched-mode power supplies are also more energy-efficient than linear power supplies. They can regulate the flow of electricity more efficiently and minimize energy losses. This has helped to improve the overall energy efficiency of electronic devices and reduce energy consumption.
Switch-mode power supplies also have greater flexibility in terms of input voltage. They can be used in different countries with different mains voltages as they can automatically adjust the input voltage.
Overall, switching power supplies have accelerated the development of electronic devices and enabled them to be smaller, more energy-efficient and more versatile. They are an essential part of today's electronics industry and have helped drive progress in areas such as communications, consumer electronics, medical technology and many others.
What are the current trends or developments in the field of switching power supplies?
There are several current trends and developments in the field of switching power supplies:
1. Increased efficiency: An important trend is the continuous search for greater energy efficiency. Switch-mode power supplies are increasingly being optimized to reduce energy loss and improve efficiency. This is important in order to minimize energy consumption and reduce the environmental impact.
2. Compactness: Switch-mode power supplies are becoming ever smaller and more compact. This enables use in space-constrained applications such as mobile devices. The miniaturization of components and the use of high-frequency circuits contribute to compactness.
3. Digitization: In the course of digitalization, more and more switched-mode power supplies are being equipped with digital control and monitoring functions. This enables more precise and flexible regulation of the output voltage and output current. Diagnostic and error detection functions can also be implemented.
4. Wireless power transmission: There are increasing developments in the field of wireless energy transmission. Switch-mode power supplies are designed to be able to transmit energy wirelessly over short distances. This enables wireless charging of mobile devices, for example.
5. Improved performance: Switch-mode power supplies are continuously being developed to enable higher power densities and greater output power. This is important in order to meet the increasing requirements of modern electronic devices.
6. Sustainability: An increasingly important trend is the development of switching power supplies that are more environmentally friendly and sustainable. This includes the use of materials with a low environmental impact, the reduction of pollutant emissions and compliance with energy efficiency standards such as the Energy Star guidelines.
These trends and developments in the field of switching power supplies are helping to make devices and systems more efficient, compact, powerful and environmentally friendly.
1. Increased efficiency: An important trend is the continuous search for greater energy efficiency. Switch-mode power supplies are increasingly being optimized to reduce energy loss and improve efficiency. This is important in order to minimize energy consumption and reduce the environmental impact.
2. Compactness: Switch-mode power supplies are becoming ever smaller and more compact. This enables use in space-constrained applications such as mobile devices. The miniaturization of components and the use of high-frequency circuits contribute to compactness.
3. Digitization: In the course of digitalization, more and more switched-mode power supplies are being equipped with digital control and monitoring functions. This enables more precise and flexible regulation of the output voltage and output current. Diagnostic and error detection functions can also be implemented.
4. Wireless power transmission: There are increasing developments in the field of wireless energy transmission. Switch-mode power supplies are designed to be able to transmit energy wirelessly over short distances. This enables wireless charging of mobile devices, for example.
5. Improved performance: Switch-mode power supplies are continuously being developed to enable higher power densities and greater output power. This is important in order to meet the increasing requirements of modern electronic devices.
6. Sustainability: An increasingly important trend is the development of switching power supplies that are more environmentally friendly and sustainable. This includes the use of materials with a low environmental impact, the reduction of pollutant emissions and compliance with energy efficiency standards such as the Energy Star guidelines.
These trends and developments in the field of switching power supplies are helping to make devices and systems more efficient, compact, powerful and environmentally friendly.