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- Introduction to DC-DC Converters
- Calculate The Efficiency of A DC-DC Converter
- Boost Converters
- How Boost Converters Work
- How to Build A Boost Converter
- Buck Converters
- How Buck Converters Work
- How to Build A Buck Converter
Before we dive deep into the operating principles of DC-DC converters, let’s look at an example that shows why they are so useful. Suppose we want to build a circuit with the following requirements: 1. 2 Ohm load resistance 2. 12V DC power supply 3. 5V load voltage We need to step down the 12V battery’s voltage to supply the load with 5V. So, we ca...
We can calculate the efficiency of the circuit as follows: From these calculations, we can see that the load consumes only 12.5W of the input power. The remaining part (30 – 12.5 = 17.5 W) is converted into heat. Now, this is too wasteful. If you touch the series resistor, it will be hot, and you may need to incorporate mechanisms to cool down your...
Boost converters increase the voltage of a power source. For example a boost converter could take a 5V power source and boost it up to 25V. Typically, you find DC-DC boost converters in battery chargers or solar panels. They can also be used to supply components with different operating voltages from the same battery. This configuration steps up th...
To understand how a boost converterworks, let’s first understand how an inductor works. Recall that an inductor is a passive electronic component that can store electrical energy in the form of magnetic energy. We can use this property to control the output voltage of our circuit. Here is how it works: 1. If we OPEN the switch, as shown in the “Boo...
In this project we build a 1.5V to 5V DC-DC Boost converter. Here are the components that you need if you want to build this circuit: 1. 1.5V DC power source 2. One 180uH inductor 3. One 1N3491 diode 4. One 33uF capacitor 5. One 150 Ohm resistor 6. One MOSFET or JFET switching transistor 7. A PWM source like an Arduino Uno or 555 timerthat can gene...
Buck convertersreduce the voltage of a power supply. This is a power electronics circuit that steps down the DC voltage to a level determined by the choice of components in your circuit. Unlike linear regulators that reduce the voltage by dissipating power as heat, buck converters reduce the voltage by increasing the current. Here is a general sche...
To obtain an output voltage lower than battery voltage, we connect the switch before the inductor. When we turn ON and OFF the switch in this configuration, the average output voltage will be lower than the battery’s voltage. Here is what happens: 1. If the switch (SW) is closed, current will flow through the switch to the circuit. As the current i...
In this project we build a 12V to 5V DC-DC Buck converter. Here are the components that you need if you want to build this: 1. 12V DC power source 2. One MOSFET or JFET switching transistor 3. One 1N3491 diode 4. One 100uH inductor 5. One 50uF capacitor 6. One 4.7 Ohm resistor 7. A PWM source like an Arduino or 555 timer Here is the schematic: In t...
A DC-to-DC converter is an electronic circuit or electromechanical device that converts a source of direct current (DC) from one voltage level to another. It is a type of electric power converter. Power levels range from very low (small batteries) to very high (high-voltage power transmission).
Found in technologies across a broad range of sectors, they are in high demand in fast developing industries such as automotive, consumer electronics, and industrial machinery and vehicles. DC-DC converters must meet extremely high standards of durability, scalability, and efficiency.
Mouser is an authorized distributor for many dc-dc converter manufacturers including CUI Inc., MEAN WELL, Murata, RECOM, Texas Instruments, TRACO, Vicor, XP Power & more. Please view our large selection of DC-DC Converters below or view our Newest DC-DC Converters page. Products (71,700) Datasheets. Images.
Following the launch of Strategic Command's Integration Design Authority on 1 July 2024, the Development, Concepts and Doctrine Centre (DCDC) has evolved into a new organisation –...
A DC/DC Converter is a device that converts one DC voltage to another DC voltage. Learn about the two main types of power supply ICs: linear regulators and switching regulators, and their operating principles and classifications.
