Top 3 Reasons Why You Should Choose an AC/DC Enclosed Compact Power Supply with Higher Standard
CONTENTS
The trend toward miniaturization of terminal devices is overwhelming with the growing demand for smaller and thinner devices. This trend poses a challenge for switched-mode power supplies (SMPS), as traditional SMPS can no longer meet the higher requirements of a modern compact device in terms of not only size but also performance, structure, and appearance. Less is more – The size of a device shrinks, yet the functions increase. For device designers and engineers, this is a difficult task and needs more work on space utilization. That is where compact power supplies come into play.
Electronic Bus Stop Case Study: Why Modern Devices Need High-Standard & Compact Power Supply?
Here we will illustrate the answer to this question by analyzing the modern bus stop application case:
1. Supporting More Components
An electronic bus stop sign contains LCD displays, cameras, LED information screens, advertising screens, etc. Putting so many components inside a thin shell requires high-quality, reliable, environmentally adaptable, and, most importantly, compact power supplies.
2. Adapting to Different Systems' Power Requirements
Depending on the complexity of the electronic bus stop system, designers should choose different compact power supplies with suitable power for different functional modules of the internal system; and the more functional modules of the system, the device is more sensitive to the power supply's size.
3. Stably Working in Harsh Environments
Depending on the fact that bus stop signs are usually installed in harsh outdoor environments, designers should choose power SMPS with a wide working temperature range in case it doesn't work in extreme outdoor temperatures.
MORNSUN's Latest-Launched LM-R2 Is What You Need
Considering the above requirements, MORNSUN’s talented team has designed a higher standard LM-R2 series AC/DC enclosed SMPS for small-size applications. This compact power supply is competent for these challenges with the following benefits:
Ø Compactness
With power ratings ranging from 35W to 350W, the LM-R2 series is capable of meeting different power and size requirements. For example, the 75W LM75-23BxxR2 is at least 15.4% smaller than mainstream solutions. And for the 200W LM-R2, its size can be reduced by up to 49%, bringing the following advantages.
● Reducing transportation and storage costs.
● Suitable for applications sensitive to volumes, such as small-character inkjet printers and coffee machines.
How Does MORNSUN Make It Smaller?
● Self-developed power supply ICs, reducing switching noise and the use of EMI devices.
● High frequency, higher switching frequency to reduce the size of the transformer.
● Higher efficiency, reducing the heat loss, no need for a larger shell for heat dissipation.
Ø High Performance
LM-R2 series switching mode power supplies have been developed to combine the needs of various markets and popular industries with:
1. Universal input voltage range (80-305VAC/100-430VDC). LM-R2 is compatible with mainstream voltages worldwide (100Vac, 240Vac, and 277Vac). What's more, it is more reliable in remote areas or areas with a fluctuating power grid due to large harmonics.
2. Wide operating temperature range (-40℃ to +85℃). The LM-R2 easily surpasses the challenges of operating temperatures.
3. Strong load capacity: Higher overcurrent point.LM-R2 has a stronger overload capability than the mainstream power supplies, which is reflected in the larger overcurrent point than the mainstream products, supporting transient overpower. This compact power supply is suitable for applications such as relays, contactors, and fans that require transient power during startup.
4. Stronger EMS capability (Surge & EFT).Its L-N Surge is ±2KV, while the EFT is ±4KV. The EMS capability of the LM-R2 is enhanced by the proper selection of surge suppression devices, main power capacitors, and MOSFETs.
5. Over-voltage class Ⅲ (designed to meet EN62477). It meets OVC Ⅲ below 2000m altitude. The over-voltage class describes the different locations of the equipment in the distribution network, and different locations bear different levels of over-voltage. They can be divided into four classes. The higher the level, the more stringent the power requirements (greater safety distance, higher isolation withstand voltage, etc.). Common OVC Ⅲ applications include inverters, charging piles, intelligent electrical control cabinets, etc.
6. Conducted emission Meets PELV (Protective Extra Low Voltage) application. It suits the -Vo connects with PE applications. PELV can prevent electrical shocks when designing switchgear and control device components. However, EMI can vary for the PELV application, so it requires special attention or additional EMI filter peripherals.
Ø High Quality
The high-quality LM-R2 SMPS is significantly upgraded in structure. Check these features below:
1. The base adopts riveted studs: These studs can withstand double the torque. The top cover is made of SGCC material, preventing scratches and deformation.
2. One-screw installation: 200W and below power supplies only need one screw for the upper cover installation, saving production and subsequent maintenance costs.
3. Removable terminal cover: The terminal cover of the LM-R2 full series can be removed, and products without terminal covers can add one, too.
4. Upgraded structure of terminals and PCB of LM-R2: By adding support posts to the terminals and PCB, this compact power supply prevents the possibility of product failure caused by excessive bending of the PCB due to the force during terminal wiring.
5. Enhanced process: The increased proportion of automated AI inserts for the PCB enables a higher level of automation and further reduces production costs. At the same time, the large components are fixed in the dispensing process to enhance the product's ability to resist vibration.
Conclusion
Established in 1998, MORNSUN, an innovative power supply manufacturer and designer, has worked hard in the power supply field for 25 years. With more than 6,000 high-quality products on the market, MORNSUN still invests a lot of R&D resources in developing new power supplies for various market needs and helping address the challenge of the latest in technology in different industries. If you are stuck in any technical problems in power supply design, don't hesitate to contact our team, we guarantee to have the optimal solution perfect for your systems!
