Buck Boost Converters – Step Up & Step Down Modules – Page 3

Buck-Boost Converter Design and Working Principles

A Buck-Boost Converter is a DC-DC converter that can either increase (boost) or decrease (buck) the input voltage to maintain a stable output. It operates using pulse-width modulation (PWM), which controls how long the transistor (or MOSFET) remains ON or OFF during each switching cycle. This ability makes it extremely useful in circuits where the supply voltage varies — such as battery-powered devices or solar systems.

Main Components

E (Input Source): Provides the supply voltage to the converter.

S (Switch): A transistor or MOSFET that controls the current flow.

L (Inductor): Stores energy in its magnetic field during the ON phase.

D (Diode): Directs current to the load during the OFF phase.

C (Capacitor): Filters and smooths the output voltage.

U (Output Voltage): Represents the regulated DC voltage delivered across the load resistor (R).

R (Load): Represents the connected circuit or device receiving power.

Working Operation

The converter works in two main phases during each switching cycle:

When the Switch (S) is ON

The MOSFET conducts and connects the inductor directly to the input voltage.

The inductor stores energy by building a magnetic field.

The diode (D) becomes reverse-biased and blocks current flow to the load.

The capacitor supplies power to the load during this time.

When the Switch (S) is OFF

The MOSFET turns off, breaking the connection to the input source.

The magnetic field in the inductor collapses, releasing stored energy.

The diode (D) becomes forward-biased and allows current to flow to the load.

The capacitor charges and smooths the voltage output.

DIY Electronics & Robotics Applications

Arduino & Microcontroller Projects: Maintain a steady voltage for boards like Arduino, ESP32, and Raspberry Pi even when battery levels fluctuate.

Portable & Battery-Powered Devices: Use buck-boost converters to stabilize voltage in rechargeable battery circuits (e.g., 3.7V Li-ion to 5V USB output).

Robotics Systems: Power DC motors, sensors, and controllers that require different voltage levels from a single battery source.

IoT & Embedded Devices: Ensure reliable operation for wireless sensors and modules with varying input voltages.

Educational Kits & Prototyping: Ideal for students and makers to learn about power regulation and circuit efficiency in hands-on projects.

Buck Converter	Price
MP1584EN Mini LM2596 ultra-small DC-DC step-down	₹49/-
LM2596 Mini 360 Aircraft Power Supply Step-down Module	₹54/-
LM2596 DC-DC Buck Module	₹58/-

Types of Boost Converter Module	Price
0.9V-5V to 5V DC-DC USB Step Up Power Boost Converter Module	₹37/-
LM2577 DC-DC Step-up Power Converter Module	₹193/-
150W Dc-Dc Boost Adjustable Power Converter	₹178/-

Type	Price
LM2596 & XL6009 DC-DC Adjustable Step-Up and step-down Power Supply Module boost and buck voltage converter	₹ 355/-

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All About Buck Boost Converters – Step Up & Step Down Modules

Buck-Boost Converter Design and Working Principles

Main Components

Working Operation

When the Switch (S) is ON

When the Switch (S) is OFF

DIY Electronics & Robotics Applications

Prices of Buck Converter Modules in India

Prices of Boost Converter Modules in India

Prices of Buck and Boost converters in India

Frequently Asked Questions

1. What is a Buck Converter?

2. What is a Boost Converter?

3. What is buck converter used for?

4. What is buck converter working principle?

5. Is buck converter AC or DC?

6. What is a boost converter used for?

7. Why MOSFET is used in boost converter?

8. What is the difference between boost converter and transformer?

9. What does a buck-boost converter do?

10. Where is buck-boost converter used?

Let customers speak for us

All Categories

Buck Boost Converters – Step Up & Step Down Modules

Categories

Refined By Clear all

Availability

Price

Featured Products

Sort by:

All About Buck Boost Converters – Step Up & Step Down Modules

Buck-Boost Converter Design and Working Principles

Main Components

Working Operation

When the Switch (S) is ON

When the Switch (S) is OFF

DIY Electronics & Robotics Applications

Prices of Buck Converter Modules in India

Prices of Boost Converter Modules in India

Prices of Buck and Boost converters in India

Frequently Asked Questions

1. What is a Buck Converter?

2. What is a Boost Converter?

3. What is buck converter used for?

4. What is buck converter working principle?

5. Is buck converter AC or DC?

6. What is a boost converter used for?

7. Why MOSFET is used in boost converter?

8. What is the difference between boost converter and transformer?

9. What does a buck-boost converter do?

10. Where is buck-boost converter used?

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