What is Buck converter?
Buck Converter is a converter that reduces the voltage that reaches a direct current load (DC). For example, the output of the 24-volt (V) power supply source (VDC) can be increased to power 12-volt equipment. The well -designed Buck converter is able to ensure a stable output voltage under different load conditions and maintain a very low -energy scattering, leading to high efficiency.
Linear regulators can be a simple solution for low -performance requirements. They use a serial passage power that controls the current across the load to create a stable DC output voltage. If the 50-VDC power supply used a 25-V load controller at 1 ampere (A), the power control of 25 watts (W) will also be over the load. This means that 50 W is drained from a 50 V power supply. The transmission efficiency is 50%, but if the BUCK converter is used and the power scattering in the Buck converter is 2.5 W, while the power supply is still 25 W, the tutoriality is about 90%.
Buck Converter is a DC converter to DC, which works similar to the power supply of the switched mode (SMPS) that controls the working cycle of a fixed frequency square wave. If the load requires less current, the square wave time is low, but if the load requires a current of a very close SMPS limit, "he" exceeds 85%. The switched DC uses the Inductor of the series with a fast switching diode that uses inductive return flow to maintain energy transmission when the main driving element is turned off for a short time.
For application that is against the application of Buck converter, the Boost Boost (Subc) converter is used. Subc generates the output voltage that is higher than its input. In this application, the inductor in the load series converts the collapse of the magnetic field into a DC voltage that is higher than the input voltage of the circuit.
Another device for conversion of electricity is a Buck-BOOST converter that can function either as anEvodník Buck or as a boost converter. In solar energy systems it is possible to obtain a wide range of DC voltage depending on the availability of sunlight. The battery charged with a photovoltaic field can have a voltage ranging from 40 to 56 VDC. If a sensitive load requires 47 to 49 VDC, the buck-boost converter will function as a boost converter when the battery voltage is less than 47 V. The converter will function as a buck converter when the voltage is more than 49 V.