DC-DC converters play a significant role in modern electronic devices. They are highly important for electronics ranging from golf carts to tractors. Moreover, they can convert direct current from a particular voltage level to another. A DC-DC power converter is also effective for power management in supplying the desired voltage by decreasing or increasing the current level. But should you buy isolated or non-isolated converters? Learn about their differences before making a purchase.
What are isolated and non-isolated power sources?
Isolated DC-DC power supplies ensure electrical separation of the output and input. The design involves using a transformer to create a barrier between circuits. So, you will find no direct connection with this setup. Reduced noise and increased safety are some advantages of this configuration.
On the contrary, non-isolated DC converters do not cause electrical separation of the input from the output. Moreover, they are more efficient and compact than isolated converters. They are highly useful in many automobiles and consumer electronics.
What are the advantages of isolated DC-DC converters?
There are some benefits of using these converters-
- Improved safety:- Electrical insulation is the major advantage of having isolated converters. They reduce the risk of electric shock and damage because of ground loops and voltage fluctuations. This feature is highly beneficial, especially when dealing with industrial control procedures and medical gadgets.
- Reduced noise:- The insulated input-output circuits allow isolated power sources to lower potential interference and electrical noise. It is vital for applications that need consistency in signals and highly accurate data transmission. For instance, measurement apparatus can take advantage of isolated DC-DC converters.
- Different output voltages:- You will find multiple output voltages with isolated power supplies. So, they are a perfect choice for both low and high-voltage power sources. Devices that need varied voltage levels depend on these power supplies. You can also choose them when a single power source has to run different devices with varying voltage needs.
Why should you choose non-isolated DC-DC converters?
Non-isolated converters are advantageous for different reasons
- Affordability:- Non-isolated power supply products are more cost-effective than isolated units. So, if cost is a concern in any application, you can choose these products. The simple design involves only a few parts to ensure a low assembly cost.
- Lightweight and compact size:- Most non-isolated power-supplying products are lighter and smaller than isolated versions. So, they are the right choice if there are space constraints. The reduced size of power supplies makes the device portable. Users can carry them anywhere without effort.
- High efficiency:- Although non-isolated power supplies are lightweight, they have significant efficiency. They do not depend on transformers and need minimal energy. The operating temperature is also low with the non-isolated power sources. So, you can use these power supplies for most applications.
Classifying isolated and non-isolated DC/DC converters
Non-isolated DC-DC power converters can be categorized in different ways-
- Buck- Intended for Point-of-Load applications that convert higher to lower voltages
- Boost- Increase the lower voltage to a higher one.
- Buck-Boost- It provides advantages of both and controls the voltage.
There are also multiple types of isolated DC-DC converters-
- Half and full-bridge
- Forward
- Flyback
The converters need a transformer to separate the output from the input. The turn ratio of transformers allows converters to function seamlessly.
Conclusion
Choosing the right power supply is important for your electrical devices. You can select a non-isolated and isolated power supply depending on your application and its needs.
While searching for power supplies, you must consider safety, space limitations, and electrical noise. Proper wiring is also essential for your DC-DC converters.
At SMX Power we offer a wide range of isolated and non-isolated DC-DC converters designed for your specific needs. Contact us today to learn more and make the right decision for your power supply needs.