Why linear power supply is the best option for medical applications

Published: 13 June 2022

Why linear power supply is the best option for medical applications

There are many different types of power supplies, each with their own advantages and disadvantages. In this blog post, we will discuss the three most common types: unregulated, linear regulated, and switching. We'll go over the basics of each type and explain how they work.

Unregulated power supply, how does it work?

It is the most rudimentary type, consisting of a transformer, rectifier, and low-pass filter. Unregulated power supplies are simple and inexpensive to build, but they have some major disadvantages. The biggest downside is that they are very inefficient; a lot of the energy that goes into them is wasted as heat. They also tend to be quite noisy and produce a lot of electrical interference.

Linear regulated power supplies, on the other hand, are much more efficient. They use a linear regulator to control the output voltage and keep it constant, regardless of fluctuations in the input voltage. This makes them ideal for applications where precision is important, such as in medical equipment or scientific instruments. Linear regulated power supplies are also very quiet and have very low levels of electrical interference. However, they are more expensive than unregulated power supplies and their efficiency can still be improved.

Switching power supply is the most common type of power supply today. It uses transistors to switch the current on and off very rapidly, which allows it to be much more efficient than linear power supplies. Switching power supplies are also much smaller and lighter than linear power supplies, making them ideal for portable electronic devices. However, they can produce a lot of electrical noise, which can be a problem in some applications.

For medical applications it is best to consider the linear regulated power supplies that offer low noise and less chance of electrical interference.

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