桂花蒸

UPS backup power control board

Overview

Use NE555 to complete the hysteresis circuit. When the voltage is lower than 9V, the trigger relay opens and the charger starts charging. When the relay is turned on, the battery voltage gradually increases. After the voltage is higher than 12.9V, the relay is triggered again, disconnecting the contact point to stop charging. This repeats to complete the charge and discharge management of the battery. The circuit is based on Huaxin Electronics XH-M601 module.

Design Files

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Update:2025-06-24 14:17:18

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