A linear power supply is a tool for testing and measuring circuit systems by providing direct current (DC) voltage (power) to the device under validation. It’s typically used by electrical engineers, circuit designers, and other professionals in similar lines of work.
There are a lot of factors to take into consideration when choosing a linear power supply, especially with regards to your situation and what you’re planning to use it for. Feel free to browse our available linear power supplies below or scroll further down to read our in-depth overview on choosing the best bench power supply.
The size of a linear power supply varies depending on its make, model, and features. However, a majority of the industry-standard units are too heavy and clunky to be considered portable. They usually end up being a permanent setup or fixture on the engineer’s workstation or bench—hence the term “bench power supply” or “benchtop power supply.”
If your project needs to run at a specific voltage level, a linear power supply is an extremely useful piece of equipment to have on-hand. They are incredibly intuitive and come with a multitude of features that allow you to simulate virtually any scenario; fine voltage and current level control, built-in circuit protection, and multiple outputs—just to name a few.
A linear power supply features a transient response time up to 100 times faster than its switch-mode counterpart, which is important in certain specialized areas. Because the size of the transformer is directly proportional to the power output of the supply, a linear power supply is larger and heavier than a switch-mode power supply. A switch-mode power supply can generate high-frequency noise that can interfere with electronic equipment, making a linear power supply a better choice for powering sensitive analog circuitry.