“eTM-3005C, 2-Kob High Power 300V 5A DC Bench Power Supply Adjustable with Cooling Fan, OVP/OVP Protection, Encoder Adjustment Knob” has been added to your cart. View cart
Faster testing and more precise measurements with our DC power supplies.
Bench Power Supply
(eTM-3005C)
Programmable, High Voltage & High Precision
Adjustable Voltage & Current Output: 0-300V & 0-5A
Compact Design with Low-noise Temperature Control Cooling Fan
Stable Performance with Multiple Safety Protections Included
Intuitive LED Display & Patented Control Panel
CE/UL Certified, Popular in North America and Europe
Trusted Worldwide in Lab Research, School Experiment, and Electronic Production
An adjustable output range allows you to customize voltage and current settings according to your specific testing requirements, ensuring versatility for various applications.
Readback Accuracy
High readback accuracy ensures that the displayed voltage and current match the actual output, providing reliable measurements for precise testing and reducing the risk of errors.
Low Ripple & Noise
Low ripple and noise levels minimize interference in sensitive electronic circuits, leading to more stable and reliable performance during testing, which is crucial for your projects.
Multiple Safety Features
Multiple safety features, such as over-voltage protection and short-circuit prevention, safeguard the power supply and connected devices, enhancing overall reliability during operations.
Discover Different Types of Bench Top Power Supplies
Our range of bench power supplies features: variable power supply, programmable power supply, high voltage power supply, and high precision power supply. You can select the right bench top power supply according to your specific needs from our offerings.
A DC bench power supply provides a controlled direct current or DC voltage to a device under test (DUT) for monitoring its performance. It is also commonly referred to as a benchtop DC power supply, lab bench DC power supply, or test bench DC power supply. Engineers and DIY enthusiasts often rely on these devices for circuit design, testing, and troubleshooting.
Capabilities & Features
Programmable Settings
Our programmable bench power supply allows users to store and recall specific voltage and current configurations, automating repetitive tasks and enhancing efficiency during testing.
Multiple Output Channels
The triple output benchtop variable DC power supply offers multiple output channels, enabling simultaneous power delivery to different devices or circuits, increasing versatility in testing.
Protection Mechanism
Built-in safety protection of the high voltage DC bench power supply, such as overcurrent, overvoltage, and overheating protection, safeguard the power supply from potential damage.
Intuitive Digital Display
Our high precision DC bench power supply features clear, easy-to-read digital displays, allowing users to monitor voltage, current, and power output in real time with precision.
Bench Power Supply
Benchtop DC Power Supply Real-World Applications
Laboratory Research
Lab bench power supplies are essential in laboratories for testing prototypes, measuring device performance, and conducting experiments under controlled voltage and current conditions.
Educational Purpose
In educational settings, these variable bench power supplies help students learn about circuits and electronics by providing an adjustable power source for hands-on projects and experiments.
Production Line Testing
Bench test power supplies are used on production lines to test electronic components and devices, ensuring quality control and operational consistency before shipment.
Telecommunications
In telecommunications, these bench top power supplies are utilized to power and test communication equipment, ensuring stable voltage and current for reliable signal transmission.
Bench Power Supply
Difference Between Switching and Linear Bench Power Supply
Bench power supplies fall into two types: Linear Power Supplies, valued for their straightforward design and low-noise performance, and Switching Power Supplies, recognized for their high efficiency. Both types have unique advantages and cater to different needs.
Feature
Linear Bench Power Supply
Switching Bench Power Supply
Noise
Low Noise
Noisy
Circuit
Simple
Complex
Energy-Conversion Loss
Much Loss
Less Loss
Response of Load Fluctuation
Fast
Slow
Bench Power Supply
How To Operate A DC Benchtop Power Supply Safely
Consult the User Manual
Read the user manual thoroughly to understand the correct operation and safety precautions for your bench test power supply.
Inspect the Unit Regularly
Periodically check for signs of wear, loose connections, or any irregularities to maintain safe operation.
Unplug During Maintenance
Always disconnect the DC bench power supply from the outlet before performing any maintenance to prevent electric shock.
Adhere to Voltage and Current Limits
Set voltage and current within specified limits to avoid overloading the power supply or damaging connected devices.
Important Reminder
If you face any operational doubts or technical problems, consult a professional to ensure the power supply is used safely and correctly.
Keep Away from Moisture
Ensure that your bench top power supply is placed in a dry environment to prevent electrical hazards and potential damage.
Bench Power Supply
Bench DC Power Supply Instructional Videos
Check out our DC bench power supply videos to enhance your knowledge of DC power supplies. These videos cover functionality, features, installation, and operation of bench top power supplies, offering helpful guidance, tips, and demonstrations for both experts and beginners alike.
Bench Power Supply
FAQs About Bench Power Supply
Q: When is it appropriate to use a bench power supply adjustable?
A: A bench power supply converts alternating current (AC) into direct current (DC). It is commonly employed for testing equipment in laboratory settings. Engineers often rely on the test bench power supply DC for designing, testing, and troubleshooting electronic devices.
Q: How is a bench power supply used?
A: A bench DC power supply connects to a device under test (DUT) using leads attached to the supply’s panel. Users can adjust the voltage or current levels to provide power to the device for testing purposes.
Q: How long does a bench top power supply usually last?
A: With proper maintenance, this type of DC power supply generally has a long lifespan, often lasting for several years. To extend its life, it’s essential to use it within its specified limits, provide sufficient ventilation to avoid overheating, and routinely clean away dust. It’s also recommended to regularly inspect for any signs of physical damage or wear.
Q: Is it possible to use a bench power supply variable for charging batteries?
A: Yes, a variable bench power supply can be used for battery charging, but it’s essential to ensure that the output is compatible with the battery’s specifications. The voltage should be slightly above the battery’s rated voltage, and the current should not exceed the battery’s maximum charging limit. Careful monitoring of the charging process is also necessary to prevent overcharging.
Q: What is overvoltage and overcurrent protection in a good bench power supply?
A: Overvoltage protection activates when the output exceeds the preset voltage limit, disabling the output and triggering an indicator. Overcurrent protection engages when the current reaches the set limit, switching the power supply into constant current mode. In this mode, the voltage drops while the current remains at the preset limit. If overcurrent protection is enabled, the output shuts down to prevent excessive current flow.
About Bench Power Supply
20+
Development Team
4000 m³
Factory Area
10,000 +
Monthly Production Capacity
10 +
Number of Production Lines
ETOMMENS has an expert development team and strong partnerships with several research and development institutes. With expertise in various operating systems, hardware, programming, and communication technologies, we have successfully developed a wide array of high-quality bench power supplies in collaboration with numerous companies.
These bench power supplies cover a range of options, including variable DC power supply, programmable DC power supply, high precision DC power supply, and high voltage DC power supply, among others, offering versatile solutions for different testing and operational needs.
