Main Products
Your Trusted Partner in Industrial-Grade passive components.
CHANGZHOU YUANSHENG TECHNOLOGY CO., LTD
Empowering Industries with Precision Passive Components
As a Jiangsu-based pioneer in passive electronic solutions since 2013, we deliver mission-critical EMC components for industrial automation, automotive systems, and next-gen applications. Our expertise spans VFD systems, servo technologies, and power supply innovations, with core products including wound rod inductors, high-frequency transformers, and precision resistors.
Backed by ISO9000/TS16949-certified manufacturing across three strategic hubs (Nanjing, Bangbu, HuaiAn), we combine R&D agility with rigorous quality control. Over 80% of production lines utilize automated systems to ensure <0.2% defect rates while maintaining flexible customization capacities.
Trusted by global leaders in robotics, EV manufacturing, and smart infrastructure, we've achieved 40% YOY growth through engineering-led partnerships. Every component embodies our dual commitment: solving EMI challenges today while co-developing solutions for tomorrow's electrified world.
Application Fields
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Trusted by Leading Importers, Distributors, and Wholesalers Worldwide, We Deliver High-Quality Current Shunts, Open-Air Shunt Resistors, Aluminum Braking Resistors, and Custom Coils for Industrial Automation, Motors, Power Supplies, and Inverters.
Industrial Controls
Industrial automation frequency converters VFD, elevators, lifting equipment, CNC machine tools and servo systems, etc.
power supplies
Automotive BMS, controllers for various parts of the vehicle, and power supplies and PCBA
Communication Industry
Smart home, smart grid, communications industry, DC-DC converters,power supply ,SMPS etc.
Plant Area Environment
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50W-5000W Brake Resistor Power Ratings -
How do you test the functionality of an open air alloy resistor after installation? Testing the functionality of an Open Air Alloy resistor after installation is crucial for ensuring reliable performance in applications such as PCBA and industrial equipment. This guide outlines the steps to effectively test these resistors. 1. Safety Precautions Turn Off Power: Before testing, ensure that the power supply to the circuit is turned off to avoid electrical hazards. Disconnect the Resistor: If possible, disconnect one lead of the resistor to isolate it from the circuit for accurate measurements. 2. Equipment Needed Gather the following testing equipment: Digital Multimeter: Set to measure resistance (Ω). Ohmmeter: Alternatively, use an ohmmeter for measuring resistance directly. 3. Setting Up the Multimeter Configure Multimeter: Set it to resistance me... -
To properly wire a Dynamic Braking Resistor (DBR) to a Variable Frequency Drive (VFD) and avoid damage, follow these essential guidelines: 1. Correct Wiring ConnectionsPolarity: Ensure that the connections between the DBR and the VFD are made with the correct polarity. Reversing connections can lead to damage to both the DBR and the VFD .DBR Connection: Connect one terminal of the DBR to the positive DC bus terminal (P(+)) of the VFD and the other terminal to the braking resistor terminal (DB) on the VFD. This setup allows the braking transistor within the VFD to activate the DBR when necessary . 2.Set Appropriate Voltage ThresholdsVoltage Settings: Configure the VFD’s voltage threshold for enabling the DBR. This threshold should be set above normal fluctuations in line voltage to prevent unnecessary activa...
