Stepped charging circuit and charging method

• Main Authors: HUANG YABIAO, ZHONG CHENGXIANG, ZHU JIANGUO, ZHANG JINLEI
• Format: Patent
• Language: Chinese; English
• Published: 09.11.2021
• 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 invention discloses a stepped charging circuit and a charging method. The charging circuit comprises an alternating current power supply, an alternating current contactor, a power distribution controller, n charging modules, n output interfaces and a relay arranged between a first charging module and a second charging module, wherein the input end of the alternating current contactor is connected with the alternating current power supply; the control end of the alternating current contactor is connected with the first control end of the power distribution controller; the output end of the alternating current contactor is connected with the alternating current input end of each charging module in the n charging modules; the direct current output end of each charging module is connected with an output interface corresponding to each charging module; the communication end of each charging module is connected with the first control end of the power distribution controller; the input end of the relay is connec