Charged snow sweeper with lithium cell multi-harmonic superimposed voltage unit circuit

The invention provides a charged snow sweeper with a lithium cell multi-harmonic superimposed voltage unit circuit. The charged snow sweeper comprises a single chip microcomputer control unit, a voltage conversion unit and a temperature monitoring circuit. Voltage is provided for a linear voltage regulation chip through a pulse width modulation (PWM) mode, and the safety of a voltage regulation chip is ensured. Charging voltage supplied to a lithium cell is not traditional constant current direct current charging but is multi-harmonic superimposed voltage generated by a multi-harmonic superimposed voltage unit circuit with the mixing of rectified voltage of a lithium cell charging circuit and pulse voltage introduced by an original self-excited multivibrator used for an electro discharge machine, the multi-harmonic superimposed voltage passes holes of storage charge in the lithium cell to charge as a multi-point acupuncture-type mode, the charging is fast and safe, and the power is large.