Skip to content

Bench DC Power Supply

Give your devices the boost they need with a reliable bench power supply, ensuring they run smoothly and more efficiently. Our meticulously developed bench DC power supply products are tailored to suit a wide range of applications, offering steady power output for your devices.

Bench DC Power Supply

How to Choose the Best Bench DC Power Supply

Power Needs

Figure out the power requirements for your device or system, taking into account the needed voltage, current, and DC power output.

Load Characteristics

Assess load characteristics for compatibility with power supply stability and precision, considering sensitivity to fluctuations.

Quiet Operation

Choose bench power supplies with minimal noise levels to reduce interference and guarantee seamless operation in environments sensitive to noise.

Equipment Safety

Search for a DC bench power supply equipped with powerful safety measures, including protection against overcurrent, overvoltage, and short-circuit, to keep your equipment safe.

Choose the Best DC Bench Power Supply Right for You

Our range of bench DC power supplies comprises the following: programmable bench power supply, adjustable bench power supply, high voltage bench power supply, and high precision bench power supply. You can select your ideal DC power supply from our product lineup according to your specific needs.


Programmable bench power supply provides accurate control over voltage and current, catering to a variety of applications.


Adjustable bench power supply delivers stable and adjustable direct current to ensure the seamless operation of devices.

High Voltage

High voltage bench power supply is designed specifically for devices that have stringent demands for high voltage.

High Precision

High precision bench power supply guarantees exact measurements with superior resolution and accuracy.

Hot Sale

New Arrivals

What is Bench DC Power Supply?

The bench DC power supply, also referred to as a DC bench top power supply, is an electrical devices that converts AC into a stable DC power output. Among its notable characteristics is its capability to adjust the output voltage, current, or both, rendering it highly versatile for various applications. These DC power supplies are extensively used in circuit board testing, mobile phone detection, as well as in scientific research and educational units, covering all scenarios necessitating a regulated DC bench power supply.

Function & Advantage

High Resolution

With high-resolution output settings, our high precision bench DC power supply offers finely tuned adjustments for voltage and current, allowing users to attain precise and accurate power output tailored to even the most demanding experimental configurations.

Support Programming

Equipped with sophisticated programming capabilities, our programmable DC bench power supply enables users to set precise voltage and current levels tailored to their exact needs. This function offers unmatched flexibility and control, meeting a wide range of experimentation and testing requirements.

Multiple Safety Protections

Safety is of utmost importance, which is why our bench top DC power supply integrates multiple protections. These include safeguards against leakage, overvoltage, overcurrent, overheating, and short circuits. With these safety features in place, we ensure the protection of connected devices and minimize the risk of potential damage.

CV/CC Automatic Conversion

Featuring a CV/CC automatic conversion function, our benchtop variable DC power supply effortlessly transitions between constant voltage (CV) and constant current (CC) modes. This ensures stable and reliable power delivery for a diverse array of applications. This intelligent conversion mechanism promotes efficient and safe operation for a variety of electronic devices and systems.

What is Bench Top DC Power Supply Used for?

The utilization of bench DC power supplies is widespread, catering to a multitude of industries in need of a stable and reliable DC power source, such as:

Electronics Testing
The test bench power supply finds extensive application in testing electronic devices such as circuit boards, integrated circuits, and semiconductors. They offer stable power for accurate performance evaluation and troubleshooting purposes.

Experiments and Research
Within research laboratories, lab bench power supply plays a crucial role in conducting a wide variety of experiments spanning physics, chemistry, and engineering. Many of these experiments necessitate precise research, underscoring the importance of an adjustable bench power supply.

Industrial Manufacturing
In industrial manufacturing, bench DC power supplies play a vital role in providing power to various machinery and equipment, guaranteeing the steady and dependable operation of automated systems and production lines.

Bench top power supplies are essential components of telecommunications and information technology infrastructure, supplying power to networking equipment, servers, and devices to maintain uninterrupted communication and data transmission.

Switching Or Linear DC Bench Power Supply: Key Difference

The bench power supply DC falls into two main categories: Linear Bench Power Supply, known for its simple design and low-noise operation, and Switching Bench Power Supply, recognized for its high efficiency. Each type of DC power supply offers unique advantages and caters to different needs and preferences.

FeatureLinear Bench Power SupplySwitching Bench Power Supply
NoiseLow NoiseNoisy
Energy-Conversion LossMuch LossLess Loss
Response of Load FluctuationFastSlow

How to Use the Bench Top Power Supply Safely

Refer to the Manual

Before using the best bench power supply, thoroughly review and comprehend the user manual to fully understand crucial safety instructions, operational guidelines, and potential hazards.

Avoid Moisture

Ensure that your bench DC power supply and its related equipment are kept clear of water or moisture to avoid electrical hazards and damage. Store the power supply in a dry environment.

Follow Voltage and Current Limits

Operate within the specified voltage and current limits for connected devices to prevent damage to equipment and minimize the risk of electrical hazards.

Perform Unit Inspection

Regularly inspect the bench power supply unit for any signs of damage or deterioration. Ensure that all components, including cables and connectors, are in optimal condition before use.

Disconnect During Maintenance

Always disconnect the power bench supply from the electrical source when performing maintenance to prevent electric shocks or short circuits. If necessary, seek assistance from a professional.


If you encounter any operational uncertainties or technical issues, it’s important to seek guidance from a qualified professional to ensure the safe and correct usage of the DC bench power supply.

Bench DC Power Supply FAQ

Q1: What Is Variable Bench Power Supply?

The DC bench power supply variable is a versatile electronic device that delivers a stable and adjustable dc power output, enabling users to regulate voltage and current levels for a wide range of electronic testing and experimentation needs. Equipped with an intuitive interface, these bench power supplies are essential tools for testing and troubleshooting electronic circuits and devices.

Q2: What Does Programmable Bench Power Supply Refer to?

The programmable benchtop power supply is a type of power supply unit that users can control and adjust to deliver a precise output voltage and current. Its programmable nature enables customization for a wide range of applications, including laboratory research and product manufacturing.

Q3: How Does A DC Bench Power Supply Operate?

The bench power supply DC operates by providing a consistent flow of direct current to power a component, module, or device. Generally, bench power supplies operate in two modes: Constant Voltage (CV) mode, in which the output voltage is regulated based on user settings, and Constant Current (CC) mode, in which the power supply controls the flow of current.

Q4: How To Choose the Right Size of Bench Top Power Supply?

When choosing a suitable benchtop DC power supply, consider key factors including voltage and current specifications, efficiency, and potential future requirements.

Q5: How Can I Link Two DC Bench Power Supplies in Series?

To link two benchtop DC power supplies in series, adjust each power supply’s output to half of the total desired voltage (if utilizing two outputs) or to a fraction for more outputs. Verify that the outputs possess matching voltage and current ratings, and exercise caution to avoid surpassing the floating voltage rating.

Moreover, it is advisable to keep the wiring short and bundle the leads to minimize the loop area between the power supply and the load. The diagram below illustrates the correct connections to achieve this.

DC Power Supplies

Q6: How to Connect Two Bench DC Power Supplies in Parallel?

To provide additional current to a device under test, you can connect power supplies in parallel. Ensure that all outputs have an equal current limit, totaling the desired overall current limit value. The diagram demonstrates the proper parallel connection of two DC benchtop power supplies.

DC Power Supplies

Follow these guidelines:

  • a. Ensure that one supply operates in constant voltage (CV) mode, while the other(s) operate 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 voltage of the CV supply slightly lower than that of the CC supplies to prevent control conflicts or oscillations.

Q7: How to Test A Bench DC Power Supply?

For bench power supply testing, you can employ diverse methods including continuity testing, voltage testing, load testing, and ripple testing. These methods ascertain optimal performance of the power supply and ensure compliance with required standards.

  • Continuity test: Utilize a multimeter set to the continuity setting by touching the power supply’s positive and negative terminals with the multimeter leads. If continuity exists, the multimeter will emit a beep. This test assists in confirming the power supply’s operation and detecting any possible wiring faults.
  • Voltage test: Set a multimeter to the DC voltage setting, then connect its leads to the power supply’s positive and negative terminals. The multimeter will show the supplied voltage. Compare this reading to the power supply’s rated voltage to ensure it falls within the correct range.
  • Load test: Perform this test by connecting a load, such as a light bulb or motor, to the power supply, then measure the voltage and current using a multimeter. Ensure that the voltage remains steady within the expected range and that the current stays within the power supply’s designated current limit.
  • Ripple test: Measure the AC portionof the power supply’s output voltage by connecting an oscilloscope to the output terminals. Evaluate the voltage ripple, striving for minimal ripple voltage that falls within an acceptable range.

Note: It is important to adhere to safety precautions outlined in the manual or seek professional assistance when necessary, especially for individuals less experienced in electronic testing.