Power circuit of a vacuum fluorescent display having neither transformer nor electromagnetic interference

A power circuit of a vacuum fluorescent display having neither transformer nor electromagnetic interference;

• wherein, said vacuum fluorescent display including a positive pole, a grid, and a filament;
• said power circuit of said vacuum fluorescent display having neither transformer nor electromagnetic interference including:
• a DC power supplier that outputs a DC voltage;
• said DC power supplier being able to output a high-voltage power supply and a low-voltage power supply, respectively;
• an amplifying and doubling circuit having one end thereof connected to said DC power supplier and the other end thereof connected to said positive pole and said grid of said vacuum fluorescent display, respectively;
• said amplifying and doubling circuit being able to double said DC voltage output by said DC power supplier and respectively transmit said doubled DC voltage to said positive pole and said grid;
• and
• a linear amplifying circuit having one end thereof connected to said DC power supplier and the other end thereof connected to said filament of said vacuum fluorescent display;
• said linear amplifying circuit being able to output a sinusoidal wave and transmit said sinusoidal wave to said filament so as to trigger said filament.