In the realm of high-frequency, high-power server power supplies, efficiency and reliability are critical challenges. Skin effect and proximity effect exacerbate alternating current resistance (ACR), leading to increased power losses and excessive thermal rise, directly impacting system performance. EAK proudly introduces its 10KW-20KW liquid-cooled thick film resistor, meticulously engineered for high-frequency applications. By integrating advanced thermal management and low-inductance design, it effectively mitigates skin effect and ACR, delivering unparalleled energy efficiency and reliability for data centers, industrial automation, and aerospace applications.
Conquering Skin Effect and Reducing ACR
In high-frequency environments (tens of kHz to MHz), skin effect concentrates current flow at the conductor’s surface, drastically reducing the effective conductive cross-section and causing a sharpсию
System: EAK 10KW-20KW Liquid-Cooled Thick Film Resistor: Overcoming High-Frequency, High-Power Challenges for Superior Efficiency in Server Power Supplies
In the realm of high-frequency, high-power server power supplies, efficiency and reliability are critical challenges. Skin effect and proximity effect exacerbate alternating current resistance (ACR), leading to increased power losses and excessive thermal rise, directly impacting system performance. EAK proudly introduces its 10KW-20KW liquid-cooled thick film resistor, meticulously engineered for high-frequency applications. By integrating advanced thermal management and low-inductance design, it effectively mitigates skin effect and ACR, delivering unparalleled energy efficiency and reliability for data centers, industrial automation, and aerospace applications.
Conquering Skin Effect and Reducing ACR
In high-frequency environments (tens of kHz to MHz), skin effect concentrates current flow at the conductor’s surface, drastically reducing the effective conductive cross-section and causing a significant increase in ACR, resulting in substantial power losses. EAK’s liquid-cooled thick film resistor employs a wide, flat resistive layer design, printed on a high-thermal-conductivity ceramic substrate (e.g., alumina), optimizing current distribution and significantly reducing parasitic inductance and ACR. Compared to traditional wirewound resistors, EAK’s resistors achieve inductance in the nH range, minimizing ACR increase and keeping losses (P = I²R_AC) to a minimum, thereby saving valuable energy for power supply systems.
Through a precision screen-printing process, EAK’s resistors bond resistive paste (e.g., ruthenium oxide) onto the substrate, forming a uniform, mechanically robust resistive layer. This design not only counters uneven current distribution in high-frequency conditions but also ensures stable resistance values with a low temperature coefficient of resistance (TCR <100 ppm/°C), enabling server power supplies to maintain exceptional performance in high-frequency switching circuits.
Liquid Cooling: A New Benchmark in Thermal Management
In high-power-density scenarios, thermal management is pivotal for efficiency and reliability. Traditional air cooling struggles to handle the heat generated by 10KW-20KW power levels, whereas EAK’s liquid-cooled thick film resistors, integrated with high-efficiency liquid cooling systems (e.g., water or oil-based), offer thermal conductivity far surpassing air cooling, with thermal impedance as low as one-third of conventional solutions. Paired with high-thermal-conductivity ceramic substrates, EAK resistors achieve power densities up to 20KW within a compact 60 mm² package, maintaining minimal temperature rise and significantly extending component lifespan.
For instance, in data center server power supplies, EAK’s liquid-cooled resistors can reduce core component temperatures by over 30%, mitigating thermal failure risks and ensuring stable operation under high loads. Compared to air-cooled thick film resistors, EAK’s liquid-cooled solution eliminates the need for bulky heat sinks, saving over 50% of space and perfectly aligning with compact server power supply designs.
High Reliability and Versatile Applications
EAK’s liquid-cooled thick film resistors excel not only in efficiency but also in reliability, with high isolation voltage (up to 12 kVrms) and robust mechanical strength, making them ideal for demanding applications. The ceramic substrate, combined with polyimide coatings, provides excellent electrical isolation, preventing high-voltage breakdown, suitable for server power supplies, aerospace (e.g., radar systems), and medical equipment (e.g., MRI scanners). With strong surge resistance and high mechanical durability, EAK resistors withstand high-frequency pulses and thermal shocks, reducing failure rates to one-tenth of traditional wirewound resistors.
Moreover, EAK resistors support customizable designs, accommodating various frequency ranges (kHz to MHz) and power requirements (10KW to 20KW), offering flexible solutions for clients. Whether used in high-frequency filters, current shunts, or PWM circuits, EAK ensures optimal performance.
Economic and Environmental Benefits
While liquid cooling systems require higher initial investment, EAK’s liquid-cooled thick film resistors reduce reliance on costly heat dissipation components, making the overall system cost-competitive. Enhanced energy efficiency minimizes power wastage, supporting green and low-carbon goals in data centers. For example, in a typical 20KW server power supply application, EAK resistors can reduce losses by 15%, saving thousands of dollars annually in electricity costs for large-scale data centers, balancing economic and environmental benefits.
Why Choose EAK Liquid-Cooled Thick Film Resistors?
- High Efficiency: Reduces skin effect and ACR, cutting losses by 15% for significant energy savings.
- Superior Thermal Management: Liquid cooling minimizes temperature rise, achieving 20KW power density and extending system lifespan.
- Compact Design: Footprint reduced to one-quarter of traditional resistors, ideal for compact server power supplies.
- High Reliability: 12 kVrms isolation voltage and surge resistance, perfect for aerospace, medical, and other high-demand applications.
- Green and Cost-Effective: Lowers energy consumption and heat dissipation costs, supporting sustainable development.
