Aiming to Reduce Environmental Impact
As a leading provider of edge connectivity, industrial computing, and network infrastructure solutions, we strive to help our customers minimize the environmental impact when using our products. Thus, we have taken two key approaches in energy-saving design for products: improving energy efficiency and decreasing energy consumption.
Action 1: Enhancing Energy Efficiency
Our dedicated Power Team conducts research on circuit architecture and components, ensuring our core competitiveness in power and protection technology. They deliver reliable and high-quality power solutions for our products.
The Power Team has recently focused on developing high conversion efficiency and miniaturized power supplies in response to the trend of decreased product energy consumption and miniaturization. In 2020, the Power Team developed a high-efficiency power module that incorporated high-efficiency power conversion architecture, planar transformer design, and Gallium Nitride (GaN) power devices, resulting in high conversion efficiency and miniaturization.
Three Key Development Points of the High-efficiency Power Module
1. High-Efficiency Power Conversion Architecture
Using zero-voltage switching (ZVS) technology, also known as soft switching technology, to reduce switching losses and improve power efficiency.
2. Introduction of Planar Transformer Design
Planar transformers offer many advantages, such as a compact size, high coupling, low leakage inductance, and excellent heat dissipation. Compared to traditional transformers, they provide exceptional design flexibility for miniaturized products while maintaining high power conversion efficiency.
3. Using Third-generation Semiconductor Material GaN
Third-generation semiconductor GaN power devices outperform traditional power supplies with their faster switching speeds and more efficient electron conduction. As a result, GaN power devices are now the preferred option for AI generation, data centers, and electronic communication devices. We enhance power conversion efficiency by incorporating GaN power devices.
Currently, the Moxa Power Team has developed three high-efficiency power modules, with an average power conversion efficiency surpassing the current industry standards. In practical applications, Moxa's developed DC-DC 30W wide-input power module achieves an average efficiency of 91%, while the DC-DC 75W wide-input power module also reaches an average efficiency of 90%. Additionally, the AC-DC 65W power module, which utilizes third-generation semiconductor GaN power components, boasts an even higher average efficiency of 91.8%.
Besides the development of these high-efficiency power modules, the Power Team has also obtained patents for power-saving technology, aimed at reducing system power waste heat and saving energy costs.
Action 2: Reducing Product Energy Consumption
Besides enhancing product power conversion efficiency, reducing the energy consumption of products is crucial for achieving energy saving and carbon reduction. We have successfully incorporated energy-saving concepts into our product design. Here are practical examples of how our products decrease energy consumption.
Case 1: Low-energy USB-to-serial Conversion
Designed for laptops or workstation computers without serial ports, Moxa’s new UPort 1200/1400/1600-G2 Series USB-to-serial converters are excellent accessories. The second-generation (G2) USB-to-serial converters use new-generation application-specific integrated circuits and optimized power architectures. The table below shows that second-generation USB-to-serial converters (G2) consume 47 to 67% less energy than first-generation products at the same USB 2.0 transmission speed.
| Product |
G1 Energy Consumption |
G2 Energy Consumption |
Energy Saving |
| UPort 1250 |
1.8W, USB |
0.8625 W |
52% |
| UPort 1250I |
2.4W, DC |
1.265 W |
47% |
| UPort 1450 |
3.12W, DC |
1.33 W |
57% |
| UPort 1450I |
4.32W, DC |
2.225 W |
48% |
| UPort 1650-8 |
6.96W, DC |
2.33 W |
67% |
Case 2: Industrial-grade Panel Computers and Displays Fully Adopt Optical Bonding
Since 2022, Moxa industrial-grade panel computers and displays have incorporated optical bonding design. Although the manufacturing cost has increased slightly, the advantage of optical bonding over traditional tape bonding is lower reflectivity, enabling the LCD backlight to maintain high brightness while reducing energy consumption by approximately 10%.
Case 3: Industrial-grade Panel Computer MPC-2121 Series With Automatic Backlight Adjustment Design
With earlier product designs, customers had to manually change the LCD brightness based on the surroundings. The Moxa MPC-2121 Series industrial-grade panel computers incorporate light sensors. The LCD display automatically adjusts brightness using the light sensors, ensuring optimal brightness and saving energy.
Case 4: Industrial Unmanaged Switches EDS-G205 and EDS-G308 Series Support the Energy Efficient Ethernet (IEEE 802.3az) Standard
Moxa’s EDS-G205 and EDS-G308 Series industrial unmanaged switches support the IEEE 802.3az Energy Efficient Ethernet (EEE) standard, developed by the Institute of Electrical and Electronics Engineers (IEEE). Devices can switch to a low-power idle mode when data transmission volume is low, reducing energy consumption. Energy savings of 42% to 57% are attained by the EDS-G205 and EDS-G308 Series when the EEE mechanism is enabled, as shown in the table.
| Product |
EEE Turn-off |
EEE Turn-on |
Energy Saving |
| EDS-G205 Series |
3.374 W |
1.446 W |
57% |
| EDS-G308 Series |
6.822 W |
3.957 W |
42% |
Case 5: Special Energy-saving and Power-saving Mode Designs
We prioritize customer needs by allowing products to be set to standby mode based on the customer’s usage scenario to achieve energy savings. For instance, the Moxa Arm-based UC-3100 Series computers have an MCU-controlled power function, enabling the CPU power to be turned on or off through LTE mobile networks. Additionally, the Moxa OnCell G4302-LTE4 Series cellular routers feature power management and wake-up scheduling functions, giving administrators control over the product’s power usage. When the product enters standby mode, energy consumption is reduced from 2.8 W to just 70 mW, saving customers on operational costs.