| 摘要 |
An undervoltage protection circuit processing method and apparatus, and an undervoltage protection system. The method comprises: detecting the level of a current input voltage of an undervoltage protection circuit; and shielding an undervoltage protection function of the undervoltage protection circuit for voltages of other levels, the other levels being different from the level of the current input voltage. By means of the technical solution, the problem in the related art that the undervoltage protection function cannot operate at various direct current bus voltages at the same time is solved, thereby achieving the effect that a board or a secondary power module can adapt to different input voltages. |
