Patent ID: 11942807
Assignee: NANJING CHERVON INDUSTRY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  A | IPC A  H

Claim 6:
7. The riding-type mower of claim 1, wherein the power supply device comprises a plurality of battery pack circuits disposed in parallel, the plurality of battery pack circuits each comprise a battery pack, a discharge metal oxide semiconductor (MOS) tube, and a charging MOS tube, the battery pack, the discharge metal oxide semiconductor (MOS) tube, and the charging MOS tube are connected in series, the discharge MOS tube is configured to control the battery pack to discharge, the charging MOS tube is configured to control the battery pack to charge, the discharge MOS tube and the charging MOS tube are connected in series, the discharge MOS tube and the charging MOS tube each comprise a parasitic diode, the power management module is configured to enable each charging MOS tube in the plurality of battery pack circuits to be turned on, enable a discharge MOS tube in a battery pack circuit where a battery pack with a highest voltage is located to be turned on, and, in condition that a current of any one of the plurality of battery pack circuits is greater than a first preset current threshold, control a discharge MOS tube in the one battery pack circuit to be turned on, so as to enable the battery pack with the highest voltage and a battery pack of a battery pack circuit where a current of the battery pack circuit is greater than the first preset current threshold to jointly discharge, and a value of the first preset current threshold ranges from 0 A to 3 A.