Question

What is duty ratio of a converter?

Answer 1

For any particular duty ratio, the deposition height and rate increase with the increase of deposition time, and the results are shown in Figures 21 and 22. For the 0.2 and 0.25 duty ratio, however, the deposition rate is relatively lower than the higher duty ratio. Conversely, for the 0.4 and 0.5 duty ratio the deposition rate is relatively higher than the lower duty ratio, and after a certain point it increases rapidly. A reasonable explanation is that this study is conducted on a fixed pulse frequency where the pulse period is fixed and the duty ratio is the ratio of pulse on time and pulse period. This is why, due to the decrease of duty ratio, the pulse on time also decreases (17).