| 摘要 |
PURPOSE:To reduce the current effective value component and the ripple component for the titled converter by a method wherein two center taps for an output transformer are provided, and an output waveform is formed into a stepped pulse waveform by switching these taps. CONSTITUTION:The two center taps are provided on the input side wiring of the output transformer 5, and switching transistors 14 and 14' are operated alternately at the phase difference of 180 deg. by the driving pulse sent from a two-phase pulse generator 15. The transistors 14 and 14' are synchronized with the operation of the main switching transistors 4 and 4', maintaining certain phase difference phi, and as a result, the switching waveform is formed into a stepped pulse waveform (b). The high and low time ratio of the switching waveform Vs on the output side is change with varied phase difference ranging 0-180 deg., and the output voltage V0 is controlled. Accordingly, the current Ip on the input side is turned to a stepped waveform, and this enables to reduce the effective value and the ripple component of the titled converter when compared with that of the converter heretofore in use. |
