Boost Converter Circuit Using Mc34063 Ic

In the previous tutorials we demonstrated detailed design of 3 7v to 5v boost converter using mc34063 and 12v to 5v buck converter using mc34063 today we will use the same mc34063 ic to build a dc to dc boost converter circuit which can convert small voltage like 3v to higher voltage upto 40v.

Boost converter circuit using mc34063 ic.

The circuit that i am gonna show here will step up the voltage into 3 different level like 5v 5 3v 6v. So here mc34063 ic is used a adjustable dc dc converter. All these functions are contained in an 8 pin dip or soic package. The ic mc34063 is contains all the primary circuitry needed for building simple dc dc converters.

It is a dc dc converter chip. Following circuit is designed to boost input voltage from 5v to 10v using single power supply source. How to build a square to triangle wave converter circuit how to build a square to sine wave converter circuit how to build a clock circuit with a 555 timer how to build an astable multivibrator circuit with transistors. Mc34063 is most popular switching regulator in such segment.

A sample mc34063a circuit diagram for buck and boost circuit using the mc3463a ic is shown below. We can use it as a buck converter a boost converter or an inverter. Boost converter circuit using mc34063 ic is designed with few external components and this ic is suitable for compact dc dc boost converter circuit. Where to use mc34063.

The mc34063 was designed to be incorporated in buck boost or voltage inverter converter applications. Functional block diagram the reference voltage is set at 1 25 v and is used to set the output voltage of the converter. Ic mc34063a takes an input signal in a range of 3 0v to 40v and gives an adjustable output voltage and output current of up to 1 5a. We have previously built buck converter circuit to step down the voltage.

Mc34063a is ideal for small projects which need dc to dc converters. Thus it can function as a step up converter a step down converter and the inverter with a combination of step up or step down function. In the above two circuits the boost converter is designed to convert 12v to 28v with a current rating of 125ma and the buck converter is used to convert 25v to 28v with a current rating of 500ma. So we can use mc34063 ic which is the most popular switching regulator in such applications.

It requires a minimum number of external components for operation. Mcp34063 can be configured in three operation buck boost and inverting we use mc34063 as switching boost regulator and will boost 3 7v lithium battery voltage to 5 5v with 500ma output current capabilities. There are also options to limit the output current. And this is a classic switch mode power supply using the mc34063 chip to act as a step up or boost converter.

The important element of the circuit is boost converter ic. The mc34063 is a very useful chip. A short circuit fault protection circuit is integrated inside chip.