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What made you decide to look into getting a power supply unit? This is the most important question to ask when you are looking to choose one. Why? Depending on what made you come looking for a device will determine what you need to look for. Is it for electronic repair, electroplating, researching, or product development? Each of these jobs will need a specific range for voltage and current. Let's take a look at some of the specifications that most power supply units offer that can help you decide.
There are different voltage capacities available depending on the use it is needed for. Typical uses for a power supply would fall in the low voltage range where the highest capacity is 30 Volts. Larger voltage capacity power supply units can have capacities ranging from 60 Volts and higher. These types of power supply units are more used by developers of larger devices.
Very similarly to voltage, the current capacities on power supply units can vary from low to high current. The range for benchtop power supplies on the market is 3 Amps to about 10 Amps. Once again this depends on the type of work you plan on using the power supply for.
Many people who use the triple power supply unit choose to do so because they offer more features than single units. They provide the user with additional features like series and parallel functions to combine the multiple sources of power into one output.
Let's take a second to look at those functions and see why they are so important:
This function only allows the user to connect to an outside interface (generally a computer) for easier data storage which comes in handy when all the collected data on the power supply unit can be saved automatically to the computer instead of having to write it all down. Most programs offered for power supplies with this feature will also show a chart of the voltage and current with control on its changes. That makes it simpler for scientists and developers to work with lines that help them compare for tests and clear results.
So a lot of information, but the main thing to be sure of when checking into what kind of benchtop power supply unit you need is to know the current and voltage that you will be using. With that answer in mind look for a power supply that allows you to expand if needed and allow you to complete your testing
Good luck!!