Difference between BUCK AND BOOST converter

 BUCK vs BOOST

Introduction:- Both BUCK & BOOST converters are DC to DC converters with voltage and current at the output compare to input. There are two types of topologies.

Inverting and Non Inverting. In inverting type Output voltage polarity is different than Input voltage

where as non inverting type Output voltage polarity is same as input voltage. They are used switching regulators which use switching elements[ typically one or two MOSFETs(PNP)} and energy storage device such as INDUCTOR to efficiently regulate 

inputs voltages to LOWER or HIGH output voltage.

BUCK Converters

1. A BUCK  converter is a step down converters.

2. It is step down input voltage and step up input current.

3. Hence, Vin(BT) > Vout & Iin(current) < I out.

BOOST Converters

1. A BOOST converters is a step up converter.

2. It step up input voltage and step down input current.

3. Hence,Vin  > Vout and Iin < I out.