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Jul 15,2021 by Edulab
Your lab is crucial to your experiments and projects, and having an appropriate power supply is critical for success. Having an incorrect power supply or a faulty one, can not only affect your work but also be unsafe. Whether you are running an education laboratory in a school or university or have a lab in your business, having the correct power supply is essential. No matter your level, your power supply is something that you rely upon for stable voltages and clean currants. Today, we are sharing everything you need to know about power supplies and how to choose the right one for your lab.
A piece of equipment used in a lab to test electrical circuits or components. These are also called benchtop power supplies because they can be moved around and sit on a lab surface. They are powered by voltage and can be used for a wide range of experiments and projects. Some labs choose to use mains adaptors for a power supply; however, a standalone one is more suitable as they clearly display both current and voltage. This helps you to see exactly what is happening and ensures your work is precise and reliable. Power supplies also allow you to set specific currents and voltages for various projects. Not only that, but this equipment often comes fitted with various types of connections which will enable you to quickly and easily connect a circuit or load.
There are various types of lab power supplies that work in slightly different ways. A simple one will have two displays and two dials, as well as wheels to set voltage limits and current limits. They will have two simple modes to choose from: Constant Voltage (CV) mode and Constant Current (CC) mode. In constant voltage mode, the power supply delivers a set voltage, whereas, in the constant current mode, it delivers a set current.
There are many different types. From Planck’s Constant apparatus to Julemeters. But when it comes to benchtop devices, there are two main types to consider. These are linear power supplies and switching power supplies. Linear has high energy loss and can sometimes need cooling using a fan, whereas switching versions are very efficient and do not require cooling. Linear benchtop supplies are bigger and heavier because of a transformer, compared with switching options which are compact and small. A switching power supply often emits a high-frequency noise and can have trouble with inductive loads such as motors and coils.
Other than the type of benchtop option you want, you also need to consider some other factors when making this decision:
To find out more about bench power supplies and for guidance on choosing the best option for your lab, get in touch with our team of specialists.