What are the component values needed to design a cuk converter
A boost can be obtained by making the inductor before the MOSFET as large as possible which will store the current (1H or around that is a good value). The second inductor must be near to 0.3mH to avoid much large stop to the current flow while storing it as well in stepping down voltages. With these specific values of inductors and using a 100uF capacitor near the diode and a 1000uF capacitor across the load, I had observed voltage magnitudes as high as 100V with  a 12V input from power supply. To avoid faulty inductors I had used transformers, though pulse transformers (can be found in mobile chargers and CFL lamps/energy savers) were a more better option as they also prevented the 555 and the MOSFET from burning up by keeping the max voltage around 77V