| 摘要 |
The utility model discloses a high frequency head and a time sequence regulating and electricity providing circuit thereof. The electricity providing circuit comprises a first voltage conversion circuit for converting DC power source into a first output voltage and outputting the same from a output terminal, a second voltage conversion circuit with output terminal connected with the power source, and control terminal thereof coupled to the output terminal of the first voltage conversion circuit to make the second voltage conversion circuit outputting the second output voltage controlled by the first output voltage. The utility model guarantees time sequence of power supplying of the second voltage signal is later than that of the first voltage signal, reaches the object of regulating power supplying time sequence, makes the high frequency head obtain working standard of wider voltage, and is suitable for work under different commercial electricity environment in different areas. |
