CUK Converter

A Ćuk converter is a DC-DC converter that can step up or step down voltage with inverted polarity, known for continuous input/output current

Implementing a Ćuk Converter in Simulink (Simscape( Location of Components:

Simscape > Electrical > Specialized Power Systems OR

Simscape > Electrical > Electrical Elements if using physical modeling.

Step-by-Step Setup:

1. DC Voltage Source → Input
2. L1 between source and capacitor C1
3. MOSFET between node (L1-C1) and ground (switch)
4. Diode (cathode connected to drain of MOSFET, anode to output stage)
5. C1 connects between source-side and output-side inductors
6. L2 and C2 form the output low-pass filter
7. Resistive Load
8. Add PWM Generator or control logic for the MOSFET gate
9. Use Voltage and Current sensors for monitoring

Optional:

• Add a PI Controller for output voltage regulation in closed loop
• Use Powergui block for simulation with SimPowerSystems

Typical Output Behavior:

• Output voltage: negative with respect to input