A battery pack power supply circuit and electric vehicle

• Main Authors: LU PUSEN, WANG JINGDE
• Format: Patent
• Language: Chinese; English
• Published: 16.08.2019
• Subjects: ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

The utility model relates to a battery pack power supply circuit and an electric vehicle, the battery pack power supply circuit is connected with a complete machine control circuit and charges an input capacitor in the complete machine control circuit when connected to a complete machine, and the battery pack power supply circuit comprises a battery pack, a control unit, a charging and dischargingcircuit, a current sampling circuit and a pre-discharging circuit; the anode of the battery pack is connected with the input end of the complete machine control circuit, the output end of the complete machine control circuit is connected with the second end of the charge-discharge circuit, the first end of the charge-discharge circuit is connected with the second end of the current sampling circuit, and the first end of the current sampling circuit and the cathode of the battery pack are grounded together; the pre-discharging circuit is connected with the first end and the second end of the charging and discharging c