Buck Converter (Ideal)
Duty cycle for an ideal buck converter: D = Vout / Vin
Buck Converter Calculator
A buck converter is a type of DC-DC power converter that steps down voltage while increasing current. It is widely used in power electronics, battery-powered devices, embedded systems, and renewable energy applications.
This Buck Converter Calculator helps determine the required duty cycle for an ideal buck converter based on input and output voltage.
What Is a Buck Converter?
A buck converter reduces DC voltage efficiently using a switching device, diode, inductor, and capacitor. Unlike linear regulators, buck converters achieve high efficiency by rapidly switching the input voltage.
Key advantages:
• High efficiency
• Reduced heat dissipation
• Compact size
• Suitable for high-current applications
Buck Converter Duty Cycle Formula
For an ideal buck converter operating in continuous conduction mode:
D = Vout / Vin
Where:
• D = Duty cycle (0 to 1)
• Vout = Output voltage
• Vin = Input voltage
How to Use the Buck Converter Calculator
1. Enter the input voltage
2. Enter the desired output voltage
3. Click Calculate
The calculator instantly provides the duty cycle required to achieve the target output voltage.
Practical Applications
• Voltage regulation in embedded systems
• Battery charging circuits
• Power supplies for microcontrollers
• Renewable energy systems
• Electric vehicles
Limitations of the Ideal Formula
The formula assumes:
• No switching losses
• Ideal components
• Continuous conduction mode
In real systems, efficiency losses and component tolerances must be considered.