| 摘要 |
The present invention relates to a power control device for a high power factor multi-tap control power supply for manufacturing of sapphire ingots capable of significantly reducing power necessary for manufacturing of sapphire ingots by improving the power factor of the power supply for manufacturing of sapphire ingots and minimizing the total harmonic distortion ratio in a sapphire ingot manufacturing site. By adding one or more taps (30) to the first coil (20) of a transformer (10) in a single-phase and signal-tap AC SCR control scheme to segment the phase control section, the present invention can increase the power factor and decrease total harmonic distortion ratio. To each tap (30), an AC SCR (40) is connected individually. |
