| Title |
A Study on Waveform Analysis of Input Current for Novel Boost AC-DC Converter of High Power Factor |
| Keywords |
Harmonics component ; High power factor ; Discontinuous sinusoidal form ; Loss-less snubber ; Boost converter |
| Abstract |
In this paper, authors propose novel boost AC-DC converter of high power factor and analyze for waveform and harmonics component of input current. The input current waveform in the proposed converter is got to be a sinusoidal form of discontinuous pulse in proportion to magnitude of ac input voltage under the constant duty cycle switching. Therefore, input power factor is nearly unity. Particularly, the stored energy of loss-less snubber capacitor is recovered with input side and increases input current from resonant operation. The result is that input power factor of the proposed converter is higher than that of conventional converter of high power factor. Some simulative results on computer and experimental results are included to confirm the validity of the analytical results. |