Change AC voltage to DC voltage to power extremely sensitive audio, measuring, and testing devices while keeping electronic interference—often called output or ripple noise—from passing on to the device. The lower the output noise value, the less interference the power supplies will create. Although they create less noise than other power supplies, these power supplies are larger, heavier, and give off more heat.

Designed with linear voltage regulation, these power supplies produce the same voltage regardless of changes in the input voltage or the amount of current being drawn. They are also known as linear power supplies.

Power supplies with an output voltage selector switch let you toggle between two voltage and current output ranges.

View the output on a digital or analog display. Digital displays are often easier to read than analog displays, so you can quickly see if you need to make adjustments. Analog displays are better than digital displays for monitoring fast output changes, such as dips and spikes.

If you exceed the maximum load or current, all of these power supplies will shut down to protect both the power supply and the connected device. Those with overvoltage or over temperature protection will shut down if you exceed the maximum voltage or temperature.

UL and C-UL listed power supplies meet U.S. and Canadian safety standards.

Use your computer to remotely control these power supplies that convert AC voltage to DC voltage for powering electronics from simple prototypes to advanced testing equipment. All of these power supplies include a USB cable and Windows-compatible software to control, monitor, and record the voltage, current, and power outputs of your device. You can also create programs with up to 20 steps that change voltage and current outputs at set times. A selector switch lets you quickly choose up to three defined settings for voltage and current outputs. The power supplies have an auxiliary output connection, but it will take on the same settings as the primary outputs. View the outputs on their digital display.

These power supplies use switching regulation, which means they produce the stated voltage despite fluctuations in your input power and the power being drawn by your system, and they won’t become too hot. If you exceed the maximum voltage, current, load, or temperature, the power supplies will shut down to protect both the power supply and the connected device.

Power supplies with remote voltage sensing check for any drops in the voltage as they send power to a device. If the voltage dips, they can compensate with extra power, so connected devices always receive the correct voltage.

Maximum output noise is also known as ripple noise. When power supplies convert AC voltage to DC voltage, some noise from the AC voltage will carry into the output. While this noise won't affect most applications, it can interfere with other signals in extremely sensitive audio, measuring, and testing equipment. The lower the output noise, the less interference it creates.