| 摘要 |
PROBLEM TO BE SOLVED: To provide a power transmission device in which power factor can be improved by reducing the distortion of current waveform, while ensuring the required pulse width.SOLUTION: A power transmission device is connected between an AC wiring system connected with an AC power supply and a DC power supply, and transmits power from the DC power supply to the AC wiring system. The power transmission device includes AC power supply voltage signal generation means 10, power conversion means, a DC voltage converting section, a switching element 11, and switch on/off signal generation means 12. Delay signal generation means 15 in the switch on/off signal generation means 12 includes a delay signal delaying section for delaying the rising of the delay signal furthermore depending on the magnitude of the voltage of the AC power supply voltage signal.SELECTED DRAWING: Figure 2 |
