High-efficiency, hot-swappable AC-DC and DC-DC power solutions engineered for telecom backhaul, edge servers, and industrial networks.
Guangzhou EVS Powers Co., Ltd. is located in the thriving international trade city of Guangzhou, China. EVS is a professional manufacturer specializing in the research, development, and high-volume export of switching power supplies, DC power systems, industrial power supply units, DC-DC converters, power inverters, and complex OEM/ODM electronic architectures customized according to precise client requirements.
Our operational philosophy is built on three core pillars: absolute client satisfaction, uncompromising product quality as our cornerstone of development, and systemic cost efficiency to deliver a sustainable competitive advantage. We leverage premier technology to supply mission-critical power systems to clients worldwide.
Through our excellent credit standing and dedicated technical services, we have built long-term strategic relationships with customers across Europe, South and North America, Australia, the Middle East, and Southeast Asia. EVS is eager to share its engineering knowledge, process technologies, and manufacturing experience with partners globally to build mutually beneficial relationships.
EVS Powers operates highly automated manufacturing lines to minimize human variance, boost yields, and guarantee cost advantages.
In power electronics assembly, variable hand-soldering and inconsistent transformer winding are primary causes of premature thermal failure. By deploying computerized winding networks and automatic wave-soldering lines, EVS Powers maintains component tolerances within ±0.5%, significantly boosting MTBF metrics for heavy-duty industrial systems.
Every power supply unit is subjected to rigorous electrical, thermal, and mechanical stress tests in our state-of-the-art laboratory.
To ensure our power supplies operate reliably in extreme environments, EVS maintains an in-house laboratory equipped to run full-spectrum diagnostic profiles, including high-humidity cycling, thermal shock tests, and insulation resistance checks.
Aligning with global efficiency regulations and high-density semiconductor trends, EVS is leading the evolution of switching power design.
Our ongoing R&D is transitioning core switching lines from traditional silicon MOSFETs to Gallium Nitride (GaN) and Silicon Carbide (SiC). This reduces gate-drive losses and enables switching frequencies above 150kHz, allowing for smaller magnetic components and an increased power density profile of up to 40W/in³.
Modern networks demand real-time diagnostics. Our newer rectifier modules integrate digital signal processor (DSP) controls. This allows operators to run active monitoring of temperature, load balance, and device health using SNMPv3 and Modbus RTU, laying the groundwork for predictive maintenance models.
To support global carbon reduction goals, EVS's future power topologies leverage LLC resonant converters and active clamping. This allows us to achieve up to 96.5% efficiency under typical loads (matching 80 Plus Titanium standards) and reduce standby current draw below 0.5W.
Customized power distribution architectures engineered to address the specific performance demands of major global sectors.
For base stations and telecom cabinets, we supply N+1 hot-swappable rectifiers (like the EVS2460-H1A2) that ensure uninterrupted operation. Equipped with advanced EMC filtering, these units isolate sensitive RF gear from grid fluctuations.
Designed to operate on rugged factory floors, our enclosed DIN-rail and chassis power units resist high vibrations, wide temperature swings (-40°C to +70°C), and line transients, making them perfect for program-controlled PLC exchanges.
Our programmable high-current AC-DC charging stations (such as the EVS EV-1000-30 series) provide controlled constant-current/constant-voltage (CC/CV) profiles, ensuring safe and efficient charging for industrial battery systems.
Ensure you select the right power components for your system. Review these critical parameters to verify compliance and long-term reliability.
| Performance Parameter | EVS Standard Specification Range | Significance to System Reliability |
|---|---|---|
| Power Factor Correction (PFC) | Active PFC > 0.98 (typical load) | Reduces reactive current draw, helping you stay compliant with EN61000-3-2 regulations. |
| Ripple & Noise | ≤ 120mVp-p (for 24V/48V modules) | Minimizes high-frequency noise interference in sensitive communication circuits. |
| Galvanic Isolation | Input-to-Output: 3.0kVAC; Input-to-Case: 1.5kVAC | Protects downstream equipment and operators from high-voltage transient spikes. |
| Line & Load Regulation | Line: ±0.2%; Load: ±0.5% | Maintains stable DC voltage outputs even during severe grid variations or sudden load shifts. |
| Hold-up Time | ≥ 20ms (at nominal 220VAC input) | Provides sufficient buffer time for automatic transfer switches (ATS) to kick in during blackouts. |
We ensure smooth global integration through certified logistics paths, safety compliance, and direct engineering access.
EVS Powers works with international safety bodies to ensure our products comply with local market standards. We design our switching systems to meet major global criteria, including CE, RoHS, FCC, and CB certifications. This helps streamline your importing process and simplifies system-level safety reviews.
To minimize delivery times, EVS maintains partnerships with freight forwarders in key ports, including Guangzhou, Shenzhen, and Hong Kong, offering flexible FOB, CIF, or DDP terms. We also offer direct support from our engineers to assist with custom mounting, PMBus integration, and thermal management.
Answers to technical and commercial questions from our engineering partners and global buyers.
Rugged, high-capacity power solutions designed to meet the demands of manufacturing, industrial charging, and battery management.
EVS Powers
