The result presented were arranged accordance to the following; Figure 17 to 19 are shows results of Boost DC to DC Converter using switching frequency of 4kHz, 6kHz and 9kHz with modulation index, ma=0.5. By increasing the switching frequency, there is proportionate decrease in the output voltage. At the highest switching frequency, the output voltages are smooth. The output voltage is 3 to 4 times greater than the input voltage.