Non-Isolated AC-DC Power Converter
Our official sales partner: Dongke Semiconductor
Dongke is a leading manufacturer of high-frequency and high-efficiency power supply ICs, synchronous rectifiers and innovative solutions for power electronics.
Through this partnership, we can offer our customers access to a wide range of state-of-the-art technologies and products - from synchronous rectifiers for efficient energy conversion to customized solutions for industrial applications and consumer electronics.
Through this partnership, we can offer our customers access to a wide range of state-of-the-art technologies and products - from synchronous rectifiers for efficient energy conversion to customized solutions for industrial applications and consumer electronics.
Product range of our non-isolated AC-DC converters
Our non-isolated AC-DC converters offer an efficient and compact solution for direct voltage conversion. As an official sales partner of Dongke Semiconductor, we supply high-quality converters for a wide range of applications - from industrial control systems to LED drivers.
Our product range includes models with different input and output voltages, power ranges and designs. Each product is optimized for maximum efficiency and reliability. Detailed technical specifications and data sheets for our models can be found in the following tables.
Our product range includes models with different input and output voltages, power ranges and designs. Each product is optimized for maximum efficiency and reliability. Detailed technical specifications and data sheets for our models can be found in the following tables.
Non-isolated AC-DC converter
| Topology | HV BUCK, HV LDO, BUCK/BUCKBOOST/FLYBACK, Non-isolated flyback |
| Powerdevice BV | 700V BJT, 650V MOS |
| Powerdevice RDS(ON) | 3,6-18Ω |
| HV Startup | Y |
| Package | SOP8/DIP8, SOP8, DIP8, DIP7 |
| Output Power | 5~18V 350mA, 2.7V/3.3V/5V 20mA, 2.7V/3.3V/5V 30mA, 2.7V/3.3V/5V 50mA, 5V 300mA, 6W, 12W, 5V 200mA, 3.3~12V 200mA, 12V/15V/18V 250mA, 12V/15V/18V 400mA, 12V/15V/18V 500mA, 20W |
Non-isolated AC-DC converter with high performance
Buy non-isolated AC-DC converter
- Compact & efficient - space-saving without transformer
- Direct conversion - AC to DC without isolation
- Versatile in use
- Quality through strong partnership
Non-isolated AC-DC converter Applications
Non-isolated AC-DC converters have become an integral part of modern electronic applications. Their compact design and high efficiency make them the ideal solution for devices where space and energy saving play a central role.
In industrial automation, for example, they are used in control systems and sensors where a reliable power supply is required in the smallest of spaces. They are also widely used in LED technology - from smart lighting systems to efficient LED drivers that supply a stable DC voltage.
They are also used in small appliances and household applications, for example in modern smart home systems, where they provide the necessary operating voltage for control boards.
As an official distribution partner of Dongke Semiconductor, Rotima AG offers high-quality non-isolated AC-DC converters for a wide range of industrial and electronic applications. Our products stand for reliability, efficiency and compact design - perfect for demanding technologies.
In industrial automation, for example, they are used in control systems and sensors where a reliable power supply is required in the smallest of spaces. They are also widely used in LED technology - from smart lighting systems to efficient LED drivers that supply a stable DC voltage.
They are also used in small appliances and household applications, for example in modern smart home systems, where they provide the necessary operating voltage for control boards.
As an official distribution partner of Dongke Semiconductor, Rotima AG offers high-quality non-isolated AC-DC converters for a wide range of industrial and electronic applications. Our products stand for reliability, efficiency and compact design - perfect for demanding technologies.
Non-isolated AC-DC converters
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Non-Isolated AC-DC Power Converter
Non-isolated AC-DC converters - Efficient power supply for compact applications
Non-isolated AC-DC converters are compact and efficient solutions for converting alternating current (AC) into direct current (DC). In contrast to isolated versions, they do not have galvanic isolation between input and output, making them particularly space-saving and powerful.
These converters are used wherever space, cost and efficiency are crucial - for example in LED lighting, industrial control systems and household appliances. Thanks to their direct and low-loss power transmission, they offer high energy efficiency.
As an official distribution partner of Dongke Semiconductor, Rotima AG supplies high-quality non-isolated AC-DC converters for a wide range of applications. Our range offers reliable solutions for developers and companies that rely on high-performance and economical components.
These converters are used wherever space, cost and efficiency are crucial - for example in LED lighting, industrial control systems and household appliances. Thanks to their direct and low-loss power transmission, they offer high energy efficiency.
As an official distribution partner of Dongke Semiconductor, Rotima AG supplies high-quality non-isolated AC-DC converters for a wide range of applications. Our range offers reliable solutions for developers and companies that rely on high-performance and economical components.
Our range of other active components:
Synchronous rectifier
A synchronous rectifier is a highly efficient technology for low-loss rectification that significantly increases efficiency by using modern MOSFETs instead of diodes - ideal for high-performance and energy-efficient applications.
GaN-ICs
GaN ICs are revolutionizing the electronics industry with their high energy efficiency, compact design and versatile applications, especially in sustainable and high-performance technologies.
All-IN-ONE AC-DC converter
An All-IN-ONE AC-DC converter combines state-of-the-art power electronics in a compact module that reliably converts alternating current (AC) into direct current (DC) - efficient, safe and ideal for demanding industrial and technical applications.
Do you have any questions about our offer?
Non-Isolated AC-DC Power Converter
Design and function of non-isolated AC-DC converters in the electronics industry
A non-isolated AC-DC converter enables the direct conversion of alternating voltage (AC) into direct voltage (DC) - without galvanic isolation between input and output. This technology ensures a compact design and high energy efficiency, which makes it particularly attractive for applications with limited installation space.
As an official sales partner of Dongke Semiconductor, Rotima AG offers high-quality non-isolated AC-DC converters that have been specially developed for demanding applications. The conversion process begins with a rectifier that converts the AC voltage into a pulsating DC voltage. A downstream filter smoothes this, while a switching regulator adjusts the output voltage precisely to the desired level.
Thanks to this efficient design, non-isolated AC-DC converters are particularly suitable for industrial control systems, LED drivers or other compact electronic devices. However, due to the lack of insulation between input and output, special safety measures are required in high-voltage applications - an aspect in which Rotima AG provides support with technical advice and high-quality solutions.
As an official sales partner of Dongke Semiconductor, Rotima AG offers high-quality non-isolated AC-DC converters that have been specially developed for demanding applications. The conversion process begins with a rectifier that converts the AC voltage into a pulsating DC voltage. A downstream filter smoothes this, while a switching regulator adjusts the output voltage precisely to the desired level.
Thanks to this efficient design, non-isolated AC-DC converters are particularly suitable for industrial control systems, LED drivers or other compact electronic devices. However, due to the lack of insulation between input and output, special safety measures are required in high-voltage applications - an aspect in which Rotima AG provides support with technical advice and high-quality solutions.
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Non-Isolated AC-DC Power Converter
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What are the advantages of using DC voltage transformers compared to AC voltage transformers?
What are the advantages of using DC voltage transformers compared to AC voltage transformers?
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Further information on non-isolated AC-DC converters
In our FAQ section you will find answers to the most important questions about non-isolated AC-DC converters. We explain how they work, what you should look out for when selecting them and which safety aspects are relevant.
Whether for industrial control systems, LED drivers or compact electronics - here you will find valuable information on possible applications, technical specifications and the benefits of our products. If your question is not included, we will be happy to help you personally!
Whether for industrial control systems, LED drivers or compact electronics - here you will find valuable information on possible applications, technical specifications and the benefits of our products. If your question is not included, we will be happy to help you personally!
How does a non-isolated AC-DC converter work?
A non-isolated AC-DC converter converts alternating voltage (AC) directly into direct voltage (DC) without galvanic isolation between input and output. The process begins with a rectifier that transforms the AC voltage into a pulsating DC voltage. This is followed by a filter that smoothes the voltage and reduces unwanted fluctuations.
Finally, a switching regulator ensures a stable output voltage that is adapted to the requirements of the connected devices. By dispensing with isolation, these converters are particularly compact, efficient and cost-effective. They are ideal for applications with limited space, such as industrial control systems or LED drivers.
Finally, a switching regulator ensures a stable output voltage that is adapted to the requirements of the connected devices. By dispensing with isolation, these converters are particularly compact, efficient and cost-effective. They are ideal for applications with limited space, such as industrial control systems or LED drivers.
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Where are non-isolated AC-DC converters used?
Non-isolated AC-DC converters are used wherever direct voltage conversion is required and no galvanic isolation is needed. In industrial automation, they reliably supply controllers and sensors with DC voltage. In LED technology, they provide a stable power supply for smart lighting systems.
They are also widely used in smart home devices and compact electronics solutions, as they require little space. They even ensure an efficient energy supply in household technology, for example in kitchen appliances or air conditioning controls. Their space-saving design and high efficiency make them a popular choice for modern, compact electronic systems.
They are also widely used in smart home devices and compact electronics solutions, as they require little space. They even ensure an efficient energy supply in household technology, for example in kitchen appliances or air conditioning controls. Their space-saving design and high efficiency make them a popular choice for modern, compact electronic systems.
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What are the advantages of non-isolated AC-DC converters?
Non-isolated AC-DC converters offer several decisive advantages. By eliminating galvanic isolation, they are more compact, which makes them ideal for applications with limited installation space. They are also energy efficient, as less energy is lost through additional insulation elements.
Their simple design reduces manufacturing costs and enables cost-effective production. They also offer a high power density, which means that they guarantee a stable power supply despite their small dimensions.
However, special safety measures must be taken in high-voltage applications as the output is directly connected to the input.
Their simple design reduces manufacturing costs and enables cost-effective production. They also offer a high power density, which means that they guarantee a stable power supply despite their small dimensions.
However, special safety measures must be taken in high-voltage applications as the output is directly connected to the input.
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What is the difference between a non-isolated and an isolated AC-DC converter?
The main difference lies in the galvanic isolation. An isolated AC-DC converter uses a transformer or optical coupler to electrically isolate the input from the output. This ensures increased protection against voltage surges, which is important for high-voltage applications.
A non-isolated AC-DC converter, on the other hand, does without this isolation, making it more compact, cost-effective and efficient. It is suitable for applications where protective separation is not required, for example in LED drivers or small switching power supplies. The choice between the two variants depends heavily on the safety requirements of the application in question.
A non-isolated AC-DC converter, on the other hand, does without this isolation, making it more compact, cost-effective and efficient. It is suitable for applications where protective separation is not required, for example in LED drivers or small switching power supplies. The choice between the two variants depends heavily on the safety requirements of the application in question.
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What safety aspects need to be considered for non-isolated AC-DC converters?
As non-isolated AC-DC converters have no galvanic isolation between input and output, potential hazards can arise from high voltages. In applications with mains voltage, care must be taken to ensure that all contact points are insulated and protected accordingly.
Correct earthing is also necessary to avoid electrical interference. In safety-critical applications, it should be checked whether an insulated alternative makes more sense. Insulated transformers are often prescribed, particularly in industry or for medical devices.
Proper installation and protective circuitry ensure that the transformer can be operated safely.
Correct earthing is also necessary to avoid electrical interference. In safety-critical applications, it should be checked whether an insulated alternative makes more sense. Insulated transformers are often prescribed, particularly in industry or for medical devices.
Proper installation and protective circuitry ensure that the transformer can be operated safely.
Learn more
