Boost Converter Circuit

A capacitor inductor or the two in combination.

Boost converter circuit.

A dc to dc boost converter circuit is a circuit that can convert a dc voltage into a larger dc voltage. The circuit boosts the voltage from the supply hence named as boost converter. All it consists of is an inductor a semiconductor switch a diode and a capacitor. It is a class of switched mode power supply smps containing at least two semiconductors a diode and a transistor and at least one energy storage element.

The rest of the components are the same as those used in the buck converter illustrated in fig. 3 2 1 illustrates the basic circuit of a boost converter. So for example you may be able to convert a 5v dc voltage into 30v. A boost converter circuit is a design intended for stepping up or boosting a small input voltage levels to a desired higher output voltage level hence the name boost converter.

These are the same levels that i recommend for switching from a non synchronous buck to a synchronous. Two different topologies are called buck boost converter both of them can produce a range of output voltages ranging from much larger. A dc to dc converter works on the principle of an inductor primarily and a capacitor. When fed dc power the inductor acts as a energy storage device for current.

The boost converter however does not involve the tedious method of converting dc to ac then stepping up the voltage and then converting the stepped ac voltage to dc. A boost converter is one of the simplest types of switch mode converter. However in this example the switching transistor is a power mosfet both bipolar power transistors and mosfets are used in power switching the choice being determined by the current voltage switching speed and cost considerations. Basic synchronous boost converter.

A boost converter step up converter is a dc to dc power converter that steps up voltage while stepping down current from its input supply to its output load. Although a boost converter circuit may involve many complex stages and calculations here we will see how the same could be built using minimum number of components. The buck boost converter is a type of dc to dc converter that has an output voltage magnitude that is either greater than or less than the input voltage magnitude. There are many ways to converter a lower dc voltage to a higher one.

For circuits with a high output current generally starting above three amps and especially five amps or more replacing the output diode with a mosfed makes a lot of sense both for efficiency and for heating. The input voltage is supplied through a 3 7 v battery which has its anode connected to the pin 6 of the regulator ic and cathode connected to the common ground. In this project the boost converter circuit is built using the 34063a dc to dc converter ic.