| 摘要 |
PROBLEM TO BE SOLVED: To provide a power switch circuit, capable of reducing a self-discharge loss amount of a battery after being switched to an off-state.SOLUTION: The power switch circuit includes: a processing unit; a power supply unit for supplying power to the processing unit; a voltage sampling circuit for sampling the feeding voltage of the power supply unit to generate a sampling voltage; and a switch unit electrically connected between the power supply unit and the voltage sampling circuit. Based on the sampling voltage, the processing unit monitors power supply unit capacity, and generates a first control signal after an electronic apparatus is switched off. Based on the first control signal, the switch unit disconnects the connection between the power supply unit and the voltage sampling circuit. |
