External power supply switching circuit

• Main Authors: WANG ZIYUAN, SONG JIANBING, LU PEIDONG
• Format: Patent
• Language: Chinese; English
• Published: 19.12.2023
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The utility model provides an external power supply switching circuit, which comprises a power supply output end, an external power supply path and an internal power supply path, and is characterized in that the external power supply path and the internal power supply path are respectively connected to the power supply output end; wherein when the normal output of the AC power supply is converted into the internal power supply, the external power supply path is disconnected, and the internal power supply supplies power to the power supply output end through the internal power supply path; when the AC power supply is disconnected, the external power supply path is conducted, and the external power supply supplies power to the power supply output end through the external power supply path; according to the scheme, the power supply can be automatically switched. 本申请提供一种外接电源切换电路，包括电源输出端、外接电源路径和内部电源路径，外接电源路径和内部电源路径分别连接至电源输出端；其中，在交流电源正常输出转换成内部电源时，外接电源路径断开，内部电源通过内部电源路径向电源输出端供电；在交流电源断开时，外接电源路径导通，外接电源通过外接电源路径向电源输出端供电；