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Avinash Mittal
by on June 2, 2021

A dc-to-dc converter is a type of power supply that changes dc voltage to a desired dc voltage. This makes it possible for you to use different types of dc voltages in your application instead of relying on the traditional 120VAC or 220VAC power found in many homes and businesses.


A key factor when deciding which converter to buy is knowing what type of voltage output you need. What size input do I need? The most common sizes are 12VDC, 24VDC, 48VDC, and 100VDC inputs. If you know how much current your device requires (in amps), this can help determine which input size will work best.


If you have a dc-to-dc converter and are looking for more information about how to choose the right one, then this blog post is for you.


The first thing you should do is decide what type of dc converter best suits your needs: single-phase, three-phase, or uninterruptible power supply (UPS). Then, once you know which one to use, some other factors to consider before making your final choice.


How to Choose a DC-to-DC converter:

- Consider the type of dc-to-dc converter is important

- Then, look carefully into the dc-to-dc converter topology- voltage level translation (voltage, current)

- Know the dc-to-dc power supply applications you will be using it for: industrial, automotive, medical devices, solar inverters.

- Is your application dc to dc conversion in a fixed voltage system?

- Does your application require the use of isolated supplies, or is it for a standard ground operation only?

- What are you trying to achieve with this converter, and how much space do you have available?


Benefits of using a dc-to-dc converter:

- Helps reduces the size of your application

- Provides a means to control dc power to any load without the need for an isolated dc distribution system

- Eliminates costly and heavy direct current wiring 

- Simplifies installation by providing one point ground.


DC converters are available in different topologies: Current Source, Voltage Level Translator (VLT), Four Quadrant Converter, H bridge inverter, etc. 


The type you should choose for your use depend primarily on what voltage levels you want and what conversion ratio is required for your design. For example, a current source converter is only suitable if there needs to be more than 20% additional overhead when all loads are operating simultaneously; this can happen with high-efficiency PV systems that rely heavily on battery storage. Since different topologies serve different purposes, make sure you understand and clearly define the purpose before finalizing the purchase for any dc-to-dc converter.

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