Which Type is Right for You?
The two main types of supplies utilized are linear and switch-mode, which is also known as switching. The linear option works by correcting AC line power so that it creates DC. The DC is then filtered and regulated so that it produces current and voltage levels that can be selected by the user. While the switch-mode supply may have a similar starting process to the linear one, once the AC is filtered and regulated, it switches the DC into a high-frequency AC. From this point, it is transformed into well-regulated DC. If you have higher power requirements, then opting for switching may be a good idea. Of course, this only depends on whether your project can withstand a significant level of noise pollution. If it can’t, the linear is the way to go.
Now, if you are pressed for resources, you can connect many supplies to a single system. However, if you have ever done this before you know that the result can be rather awkward. What you need, instead, is a source with multiple outputs. When you are searching for one, make sure to pick out the option that has isolated outputs. This way, they can be operated either in parallel or separately, depending what you require of them. Although not necessary, you may also want to look into a supply that as a tracking mode. You can then control all of the outputs with one control.
The entire point of using this type of power supply is so that you can be more efficient and productive. Nonetheless, this is only truly possible if the system is easy to set up. In order to be able to do this, you will need to look for one that has proper controls. To start with, there should be separate controls for the voltage and the current. It is also helpful if the voltage control can either have a fine tune option or a multi-turn one. Essentially, the whole point of this is to make sure that you can quickly and easily set up the settings for the voltage. To ensure the safety of your project, you may want to look for a source that lets you lock in current and voltage settings at certain points. This way, they can’t be adjusted by accident.
These are the main features to look for in an adjustable DC power source and by doing so, you will increase the chances of you finding the best one.