| 摘要 |
A power management device for controlling a power supply device includes a pulse generator, a delay unit, a first XOR gate, an OR gate, and a second XOR gate. The pulse generator generates a pulse signal, the delay unit, the first XOR gate, the OR gate, and the second XOR gate cooperatively generate an enabling signal corresponding to the pulse signal to enable and disable the power supply, and receive an output voltage of the power supply device as a feedback signal. Upon receiving the feedback signal, the power management device can stay at correct enabled and disabled statuses of the power supply device.
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