IP54 Protect Shield 380V 4t 1.5kw-2.2kw 3.8A-5.5A Variable Frequency Drive
IP54 Protect Shield 380V 4t 3.7kw-5.5kw VFD Power Inverter
High Power 400kw Variable Frequency Drive Inverter Converter
380V 4t 30kw-37kw 60A-75A VFD Converter AC Drive
55kw-75kw 112A-150A Variable Frequency Drive Converter
Variable Frequency DC AC Drive VFD Power Converter
Factory Price 0.75kw - 500kw Variable Frequency Inverter
2.2kw Low Frequency Inverter DC to AC Variable ConverterIn the contemporary industrial ecosystem, Variable DC Power Supplies have transitioned from simple laboratory tools to critical components in renewable energy, electric vehicle (EV) testing, and advanced telecommunications. The global shift towards automation and precision engineering demands power solutions that offer not only stability but also extreme flexibility in voltage and current regulation. Factories and exporters are now focusing on high-density, programmable units that can integrate seamlessly into IoT-driven manufacturing environments.
As the world pivots toward sustainable energy, the demand for high-efficiency power converters is skyrocketing. Procurement officers from Europe to North America are increasingly seeking OEM partners who can deliver custom-engineered solutions that meet strict energy efficiency standards while providing the ruggedness needed for 24/7 industrial operations.
Founded in 2004, ShenZhen JDI Power Supply Co., Ltd. stands as a beacon of innovation in the Chinese power supply industry. As a national high-tech enterprise, we operate a 6,000 square meter production base equipped with state-of-the-art R&D labs. Our team of over 20 engineers, led by a veteran with 27 years of experience, ensures that every wholesale variable DC power supply we export meets the most rigorous international standards.
Our OEM/ODM services are built on a foundation of reliability and customization. Whether you require medical-grade power adapters or heavy-duty industrial VFDs, our facility handles the entire lifecycle—from circuit design and EMC testing to mass production and global logistics. We are ISO9001:2008 and ISO14001 certified, ensuring our processes are as reliable as our products.
Established in 2004, providing reliable power conversion solutions for two decades.
Comprehensive labs for EMC, safety, vibration, and accelerated aging (MTBF) analysis.
Certified by UL, CE, GS, FCC, PSE, SAA, and RoHS for seamless international trade.
From linear adapters to high-power VFDs, we cover every industrial application.
The industry is moving toward Smart Power Systems. Modern sourcing requirements frequently specify digital interfaces like RS485, CAN bus, or Ethernet connectivity for remote monitoring. Miniaturization is another key trend; using GaN (Gallium Nitride) and SiC (Silicon Carbide) technologies, we are producing power supplies that are smaller, cooler, and more efficient than traditional linear models.
Localized application scenarios are diversifying. In Japan and Korea, there is a high demand for medical-grade Variable DC supplies for robotics; in the USA and Canada, the focus is on ruggedized units for data center infrastructure and EV charging stations. Our factory aligns its production lines to these regional needs, providing tailored solutions like our Eaton-compatible modular UPS or our specialized IGBT-based AC test converters.
For research institutes and transformer testing facilities, our IGBT-based variable frequency AC test power converters provide the stability required for precision measurement. We understand that "one size fits all" does not work in high-tech exporter markets, which is why our R&D focus remains on adaptable architectures.
CEGS and UL certified power adapters for massage chairs and professional medical equipment.
Variable Frequency Drives (VFD) and AC Inverters for motor control and factory automation lines.
Solar power inverters and modular UPS systems for data centers and renewable energy storage.
Economic mini DC UPS and smart adapters for IoT devices and surveillance systems.
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JDI Power Supply