Power supply device and motor control system

• Main Authors: ZHAO BOWEN, LI RUMING, CHEN DENGWEI, YANG PENGFEI
• Format: Patent
• Language: Chinese; English
• Published: 09.06.2023
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The utility model provides a power supply device and a motor control system. The power supply device comprises an AC conversion circuit, a controller, a pre-charging circuit and a switching power supply circuit. The alternating current conversion circuit is used for converting alternating current into direct current; the pre-charging circuit is used for selecting a matched charging branch to provide input voltage for the switching power supply circuit according to a control signal of a controller; the output end of the switching power supply circuit is connected with a post-stage load and is used for converting the input voltage into a plurality of different output voltages, so that the plurality of different output voltages provide electric energy for the post-stage load; the switching power supply circuit solves the problem that related components are damaged by strong impact current during power-on in the prior art, the switching power supply circuit is pre-charged through the pre-charging circuit, strong