10 Best Bench Power Supply 2025 in the United States

The Rigol DP832A Programmable Linear DC Power Supply offers a versatile and powerful solution for various bench power supply needs. It features three channels with a maximum output range of 30V/3A for two channels and 5V/3A for the third, providing a total power of 195W. This range makes it suitable for a wide range of applications, from hobbyist projects to professional lab work. One of its strengths is the low output ripple and noise, ensuring stable and clean power delivery, important for sensitive electronics and testing environments.

The transient response time of under 50 μs is impressive, ensuring quick adjustments and stability during load changes. Additionally, the device includes standard over-voltage, over-current, and over-temperature protection, which enhances its safety and reliability. The 3.5-inch TFT display is clear and informative, aiding in easy monitoring and adjustments. The built-in voltage, current, and power measurements along with waveform display further add to its utility.

The multiple interfaces (USB, LAN, RS232) enhance its connectivity and control options, making it a flexible tool in both standalone and integrated setups. However, the weight of 9.15 kilograms might make it less portable, and its range of advanced functions may come with a learning curve for beginners. For those who need a reliable, feature-rich power supply with multiple outputs and robust performance, the Rigol DP832A is a solid choice. Its advanced functions and somewhat heavy design are factors to consider based on your specific needs and workspace setup.

The Jesverty DC Power Supply is designed for those needing a reliable and adjustable power source, especially in lab environments or for hobby projects. With an output voltage range of 0-30V and a current range of 0-10A, it meets the basic requirements for many applications. One of its standout features is the 4-digit LED display, providing precise readings for voltage, current, and power, which is great for monitoring performance in real-time.

The unit's ability to automatically switch between constant voltage (C.V.) and constant current (C.C.) modes based on load changes adds to its versatility, making it suitable for various testing scenarios. Its compact size and lightweight nature allow for easy portability and space-saving on your workbench.

Safety is a major strength as well; it offers multiple protection features, including short-circuit protection and overload protection, which enhances reliability and extends the product's lifespan. Additionally, the inclusion of a 5V/2A USB port is a nice touch for charging smaller devices.

There are some considerations to keep in mind. While the provided test leads are a bonus, they might not be sufficient for high current applications, so users may need to invest in higher-rated leads for demanding projects. The product's relatively simple interface may not provide advanced features found in higher-end models, which might limit its use for experienced users seeking detailed control.

The SIGLENT SPD3303X DC Power Supply is designed for users who need a reliable and versatile bench power supply for various electronic projects. Its standout feature is the three independently controllable outputs, allowing you to power multiple devices simultaneously with different voltage and current settings. The main outputs offer a voltage range up to 30V and a current rating of 3A, which is quite sufficient for most applications. Additionally, the power supply gives superb resolution with 1mV and 1mA precision, making it ideal for sensitive projects where accuracy is crucial.

The TFT-LCD display is another highlight, providing clear visibility of both voltage and current with five and four digits, respectively. This makes it easy to monitor your settings at a glance. The programmable timer and waveform display functions add further flexibility, allowing for more advanced testing scenarios.

There are a few drawbacks to consider. The weight of the unit is on the lighter side at just 0.01 ounces, which might be a typo as most power supplies are heavier due to their internal components. This could lead to instability if not secured properly on a workbench. Additionally, while the outputs are isolated, some users may find the maximum output of 220 Watts limiting for more demanding applications. Lastly, the unit's dimensions (16 x 14 x 11 inches) can take up considerable space on your workbench, depending on your setup.

The SIGLENT SPD3303X is an excellent choice for hobbyists and professionals seeking a well-rounded bench power supply with programmable features and precise monitoring. Its limitations relate mainly to power output and physical size, but it serves its purpose effectively for most standard uses.