Multi-voltage-level output device

The invention discloses a multi-voltage-level output device. The device comprises a power module, a voltage transformation module and a control module; the power supply module is connected with the input end of the voltage transformation module and is used for providing stable voltage for the voltage transformation module; the voltage transformation module comprises a resistor unit and a switch unit, a first control switch is arranged between the first end of the resistor unit and the first voltage output end, and the second end of the resistor unit is connected with the second voltage output end; and the resistor unit comprises a plurality of divider resistors, the switch unit comprises a plurality of second control switches, the divider resistors are sequentially connected in series, an output lead is arranged between every two adjacent divider resistors, the second control switches are arranged on the output leads respectively, and the ends, away from the divider resistors, of the output leads are connecte