Deliver precise power control to your device under test.
Variable DC Power Supply
( eTM-5002C )
Programmable, High Voltage & High Precision
Output Voltage & Current: 0-500V & 0-2A
Smart Cooling Fan with Low Noise, Compact in Size
Multiple Safety Protections & Stable Performance
Equipped with an LCD Display and a Patented Panel
CE & UL Certified, Best Seller in North America and Europe
Widely Applied and Trusted in Global Laboratory Research, School Experiment, Electronic Production.
Enjoy Free Shipping on All Orders
How To Choose The Best Variable DC Power Supply
Power Requirement
Determine the power needs of your device or system, considering voltage, current, and dc power output requirements.
Load Characteristics
Assess load characteristics for compatibility with power supply stability and precision, considering sensitivity to fluctuations.
Noise Levels
Opt for dc power source with low noise levels to minimize interference and ensure smooth operation in noise-sensitive environments.
Safety Protection
Look for dc power supplies with comprehensive protection features such as overcurrent, overvoltage, and short-circuit protection to safeguard your equipment.
Choose The Variable DC Power Supply Right For You
Our variable dc power supplies include: programmable power supply, bench power supply, high voltage power supply, and high precision power supply. You can choose the appropriate dc power supply based on your specific requirements from our product range.
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What Is Variable DC Power Supply?
The variable dc power supply, also known as adjustable dc power supply, is an electrical device that converts ac into a steady, dc power output. One of its key features is the ability to regulate the output voltage, current, or both, which makes it highly adaptable for diverse applications.These dc power supplies find wide application in circuit board detection, mobile phone detection, as well as scientific research and teaching units, encompassing all situations that require a dc regulated power supply.
Function & Advantage
High Resolution
Boasting high-resolution output settings, our high precision dc power supply delivers finely-tuned voltage and current adjustments, enabling users to achieve precise and accurate power output for even the most demanding experimental setups.
Support Programming
Our programmable dc power supply is equipped with advanced programming capabilities, allowing users to set precise voltage and current levels according to their specific requirements. This feature provides unparalleled flexibility and control, catering to diverse experimentation and testing needs.
Multiple Safety Protections
Safety is paramount, which is why our variable dc power supply incorporates multiple layers of protection, including leakage protection, overvoltage protection, overcurrent protection, overheating protection and short circuit protection. These safety features guarantee the protection of connected devices and mitigate the risk of potential damage.
CV/CC Automatic Conversion
With its CV/CC automatic conversion function, our dc bench power supply seamlessly adjusts between constant voltage (CV) and constant current (CC) modes, ensuring stable and reliable power delivery across a wide range of applications. This intelligent conversion mechanism facilitates efficient and secure operation for various electronic devices and systems.
What Is Adjustable DC Power Supply Used For?
The application of variable dc power supply is extensive, serving various industries that require a stable and reliable dc power source, including:
Electronics Testing
DC power supplies are extensively used to test electronic devices like circuit boards, integrated circuits, and semiconductors, providing stable power for precise performance evaluation and troubleshooting.
Experiments and Research
In research labs, dc power supplies are vital for a diverse range of experiments in physics, chemistry, and engineering. These experiments often involve precision research that requires a reliable and adjustable dc power supply.
Industrial Manufacturing
Within the realm of industrial manufacturing, dc power supplies play a critical role in powering various machinery and equipment, ensuring consistent and reliable operation of automated systems and production lines.
Telecommunications
DC power supplies are crucial for telecommunications and information technology infrastructure, providing power for networking equipment, servers, and devices, ensuring continuous communication and data transmission.
Switching Or Linear DC Power Supply: Key Difference
There are two categories of power supply: Linear Power Supply, which offers simple design and low-noise operation, and Switching Power Supply, known for its high efficiency. Each power supply possesses its distinct benefits and serves varied requirements.
| Feature | Linear Power Supply | Switching Power Supply |
| Noise | Low Noise | Noisy |
| Circuit | Simple | Complex |
| Energy-Conversion Loss | Much Loss | Less Loss |
| Response of Load Fluctuation | Fast | Slow |
How To Use The Adjustable DC Power Supply Safely
Refer to the Manual
Before using the DC power supply, read and understand the user manual thoroughly to grasp essential safety instructions, operational guidelines, and potential hazards.
Avoid Moisture
Keep dc regulated power supply and associated equipment away from water or moisture to prevent electrical hazards and damage. Store the power supply in a dry area.
Follow Voltage and Current Limits
Operate within the recommended voltage and current limits for connected devices to avoid equipment damage and electrical hazards.
Perform Unit Inspection
Conduct regular inspections of the dc power supply machine to identify any signs of damage or deterioration. Verify that all components, such as cables and connectors, are in optimal condition before utilization.
Note
If you encounter any operational uncertainties or technical issues, seek guidance from a qualified professional to ensure safe and proper usage of the adjustable dc power supply.
Disconnect During Maintenance
Always disconnect the power supply from the electrical source when conducting maintenance to prevent electric shocks or short circuits. Seek professional help if needed.
Adjustable DC Power Supply Videos
Explore our comprehensive collection of informative adjustable dc power supply videos to gain a deeper understanding of power supplies. Our video series provides in-depth insights into the functionality, features, installation and operation instructions of dc power supplies. No matter if you are a seasoned professional or a newcomer in the field, these videos provide valuable guidance, tips, and demonstrations for you.
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Variable DC Power Supply FAQ
Q5: How Can I Link Two DC Power Supplies In Series?
To connect two dc power supplies in series, set each power supply’s output to half the total desired voltage (if using two outputs) or to a fraction for more outputs. Ensure the outputs have identical voltage and current ratings, and be cautious not to exceed the floating voltage rating.
Additionally, keeping the wiring short and bundling the leads to reduce the loop area between the power supply and the load. The diagram provided below demonstrates the appropriate connections to accomplish this.
Q6: How To Connect Two DC Power Supplies In Parallel?
To supply extra current to a device under test, you can parallel-connect power supplies. Ensure that all outputs share an equal current limit, summing up to the desired total current limit value. The diagram illustrates the correct parallel connection of two dc power supplies.
Follow guidelines:
a. One supply must operate in constant voltage (CV) mode, the other(s) in constant current (CC) mode.
b. Connect outputs with identical voltage and current ratings.
c. Wire remote sense terminals in parallel.
d. Keep wiring to the load as short as possible and twist/bundle leads to minimize inductance and noise.
Note：Set the CV supply’s voltage slightly lower than the CC supplies to prevent control conflicts or oscillations.
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About ETOMMENS
20+
Development Team
4000 m³
Factory Area
10 +
Number of Production Lines
10,000 +
Monthly Production Capacity
ETOMMENS boasts a proficient development team and maintains strong collaborations with numerous R&D institutes. Proficient in various operating systems, hardware, programming, and communication technologies, we have effectively pioneered a diverse range of top-tier power supplies in conjunction with enterprises.
These power supplies encompass variable DC power supply, programmable DC power supply, DC bench power supply, high voltage DC power supply, and more.