![]() The below shows the circuit arrangement of the Cuk converter using a power MOSFET. The input current is continuous in the Cuk converter. ![]() In a buck-boost converter, the energy transfer is associated with an inductor, whereas in the Cuk converter, the energy transfer is associated with a capacitor. These drawbacks can be overcome by a Cuk converter circuit in which additional capacitors and inductors are used. There are some drawbacks like the input current and charging current of the capacitor being discontinuous in the buck-boost converter. The Cuk converter combines the merits of this both converters.Įven though there is a buck-boost converter that is similar to the Cuk converter. We know that a buck converter is a step-down type dc-to-dc converter i.e., the output voltage will be less than the input voltage, whereas a boost converter is a step-up type dc-to-dc converter i.e., the output voltage will be greater than the input voltage. Need for Cuk Converter :Ī Cuk converter is formed by combining the circuits of buck and boost converters. Though a Cuk converter is similar to a buck-boost converter, its circuit construction overcomes the drawbacks of the buck-boost converter. ![]() A Cuk converter is a dc-to-dc converter similar to a buck-boost converter by which we can obtain an output voltage either greater or lesser than the applied input voltage. ![]()
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