Power supply requirements such as compact size, ease of installation, high reliability and cost-effectiveness are critical for engineering applications with demanding space. MORNSUN's low-cost ultra-slim 15-960W AC/DC Din Rail power supplies portfolio meets our customers' expectations.

Rated from 15W to 960W with outputs of 5, 12, 15, 24, 48 and 55V, LI and LIF series can be widely used in industrial control, intelligent buildings, electric power and other industries. In particular, the LIF series offer active PFC function, reliable power with a 150% peak load capability, high efficiency of up to 94%, and operating temperature of -40℃ to +70℃/-40℃ to 85℃ and meets current harmonic standards IEC/EN 61000-3-2 CLASS A, which is able to ensure stable performance in different operating environments.

Energy efficiency plays a very important role in power supply design. The inefficient and non-negligible power loss of the power supply will bring additional costs to the system and end-users. Here are some technologies that can improve the efficiency of switching power supply (SMPS).

1. Power Factor Correction (PFC) technology
An accurate PFC circuit design can not only improve the platform voltage of the converter, reduce the low voltage loss, improve the efficiency in the full input voltage range, but also reduce the harmonic component, improve the power factor, and reduce the interference to the external power grid from the SMPS.



Power Factor Correction (PFC) technology

2. Soft-switching Techniques
During the operation of the SMPS converter, the soft-switching technique helps solve the problem of energy loss of the hard switch, thus the switching loss is reduced, contributing to the small volume design of the SMPS as well. At the same time, it can also reduce the change rate of the voltage peak with time (dV/dT), reduce the interference generated from the SMPS to the outside environment, and significantly improve the EMI performance of the SMPS.

3. Synchronous rectification technique
It is used to reduce the loss of power transistors in the rectifier circuit, improve the working efficiency, reduce the energy loss and the temperature of SMPS devices, resulting in a smaller and more reliable design of the SMPS.

Soft-switching techniques and Synchronous rectification technique

4. Active clamped technique
In the process of energy conversion of the switching power supply transformer, the leakage inductance energy of the transformer is absorbed and utilized to reduce the energy loss, which is beneficial to the small volume design of the SMPS.

Active clamped technique in a flyback converter
Based on the above technologies, Mornsun upholds to innovate and continuously improve the efficiency of as high as 95% of the power supply by optimizing circuit topology design, component selection, process structure, heat dissipation design, EMC design, application reliability design, etc. In addition, the SMPS power supply of Mornsun has the advantages of low temperature rise, high tolerance to high working temperature environment and good EMC performance, suitable for a variety of harsh conditions and ensures the stable, reliable and efficient operation of the user's systems.

"DIN" is the acronym for Deutsche Institut f ü r Normung. DIN rails standards-compliant electrical components can be easily installed without screws, easy to disassemble and replace. The Din Rail power supply is designed for electrical and industrial control products and is the core part of the equipment cabinet rack.

Mornsun provides cost-effective, compact AC/DC Din Rail power supply LI and LIF series, with power ranges from 15W to 960W. The Din Rail TS35X7.5/35X15 series is easy to install, with a ladder-shaped package or a thin metal shell, which is compact and suitable for limited space. This series of power supplies can be widely used in building automation, industrial control, power, railway and other industries to help you achieve reliable performance at a limited cost. MORNSUN Din Rail mount power supplies have the following key benefits:

Ultra-thin design, easy to use and install
1) Optimized design with tiny volume
Compared with the conventional Din Rail mount power supply on the market, the thickness of MORNSUN LI and LIF series Din Rail mount power supplies is reduced by more than 30%, and the space utilization is greatly improved.
2) Din Rail TS35X7.5/ TS35X15, easy to install
The Din Rail power supply has rail clips in the enclosure design, which can be directly installed on the 35mm (TS35X7.5/35X15), there is no required drilling and soldering for wiring, so it is also easy to disassemble for replacing.

Upgraded protection ability
1) Upgraded enclosure protection
Mornsun optimizes the rail shell to ensure that the outer frame is protected by nickel plating and thickened coating to improve the anti-corrosion and oxidation ability, perfectly suited for hard conditions with high humidity sensitivity. Except that, its screw adopts a double-layer anti-skid gasket to reduce the grounding resistance and improve the anti-vibration performance.
2) Strong anti-interference ability to meet the "intercom" experiment
The interference radiation strength of the intercom is much higher than the industry standard 10V/m and can simulate the stability of the power supply in a high electromagnetic field environment to the greatest extent. Mornsun optimized the circuit layout and components selection to enhance the anti-interference ability of the LI and LIF series, so they can still work stably under the strong interference environment of intercom operation, ensuring the stability of the electrical characteristics of the system.

Other: Output power down


Mornsun: Stable output


Strong interference environment: applicable

Reliable and outstanding performance for various applications
Based on Mornsun's latest technology, the Din Rail mount power supplies optimized the circuit design and components selection, enhancing their safe and reliable performance in various applications:
1) A reliable option for explosion-proof power supply
As for petrochemical, explosion-proof and other applications with special needs for explosion-proof, Mornsun LIF-EX series Din Rail mount power supplies meet ATEX (product) and IECEx (system) certification/standard (double certification/standard) and withstand harsh environments with an operating temperature range of -40℃ to +85℃. It also features excellent electromagnetic compatibility performance (CE and RE meet CLASS B), meeting our customers’ expectations for safety in special applications.
2) Quickstart under low temperature
Mornsun LI and LIF series Din Rail power supplies can not only run stable under the operating temperature range of -40℃ to +70℃/ 85℃ but also start up quickly under the low temperature.
3) Automation manufacturing ensures product consistency and quality
At the beginning of the design and verification process, Mornsun has considered the potential risk in the production process, such as poor welding or misoperation by manual, our automation manufacturing can improve the product consistency and reduce the failure rate in the manufacturing.

High efficiency and good heat dissipation within slim space
1) Optimize heat dissipation design to improve conversion efficiency
According to the life calculation of the electrolytic capacitor, its life is reduced by half for every 10 ℃ increase in temperature. The main power device is designed to contact the enclosure and thus the heat can be quickly radiated into the air. Moreover, convection design is adopted for the dissipation design system that can effectively improve the heat dissipation performance as well. Through the optimized design of circuit topology, the Din Rail series' efficiency is up to 94%, improving the efficiency of the power supply of the application system, reducing power loss, with lower heat loss, and fundamentally strengthening the service life of products.

MORNSUN LI/LIF series can be widely used in various industries, such as industrial control, intelligent buildings, electric power, petrochemical, street light control, communication and other scenes with limited space to provide high stability, high anti-interference and high electrical performance power supply. Here take a power supply design in a smart greenhouse controller as an example.

Agriculture is another early adopter of IoT smart technology. A typical example of smart agricultural farming is a greenhouse controller. The system needs to be able to power a variety of actuators for the control of temperature, moisture, light intensity (shade), and pesticides depending on the inputs from a variety of sensors. These actuators and sensors typically runoff as a 24V DC supply, but the primary power source is a mains AC supply. The LI120-20B24R2 AC/DC Din Rail converter provides a 24V DC bus for use by the sensors and actuators. The WRF2405S-3WR2 is 3W DC/DC converter, providing 3kV DC isolation with self-recovering short circuit protection, and supplies 5V for the main control unit and display.

With over 25 years of experience, Mornsun has unparalleled in-depth knowledge of the intrinsic and extrinsic factors affecting a power supply's reliability, which is the right solution for designers looking for a reliable power supply manufacturer. In particular, Mornsun offers a wide variety of AC/DC power supplies and DC/DC converters that you can implement in your applications for fast and easy performance.

Multidimensional options for limited space

• Exquisite design with
  compact size

• Ladder-shaped plastic package
  & slim metal case available

• Adjustable width to match
  different requirements

• 15-150W Plastic Din Rail
  AC/DC converter LI series
• 75-960W Metal Din Rail
  AC/DC converter LI series
• 120-240W 2/3-phase Metal case
  DIN Rail AC/DC converter
• 120-960W High-reliability
  DIN Rail AC/DC converter

Technical team. Our R&D engineers at MORNSUN have designed the 305RAC AC/DC Converter Family catering to the various needs of your power systems. The collections is ideal for applications with higher requirements for stable operation under multiple harsh conditions. You can choose one or more of our advanced and cost-efficient components, from board mount AC/DC converters and enclosed switching power supplies to DIN Rail power supplies. Guided by the service principle of "trustworthy", MORNSUN offers the best products, fast and local service, and efficient pre-sales and after-sales support for clients worldwide.

MORNSUN provides professional power supply services. Backed by a perfect management system that consists of advanced research technology, a high-quality raw material platform, advanced equipment, excellent manufacturing process management, specialized screening sequence on reliability and rich experience, each solution from MORNSUN is designed to improve the stability, safety, and reliability of your power system.

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