Equipment power supply system controlled by capacitive touch key

The invention discloses an equipment power supply system controlled by a capacitance touch key, which belongs to the technical field of power supply on-off and comprises a capacitance detector, a capacitance key detection module and a power supply control module, the capacitance key detection module comprises a touch signal detection unit, a mistaken touch prevention unit, a signal latch unit and a driving output unit, the capacitance detector is connected with the touch signal detection unit, and the touch signal detection unit, the mistaken touch prevention unit, the signal latch unit and the driving output unit are sequentially connected. According to the invention, a touch signal is obtained by using a capacitive touch key detection technology, then mistaken touch prevention processing and latching processing are carried out on the touch signal, and then a relay of the power supply control module is controlled, so that the on-off of a controlled power supply is realized, the on-off control of an equipment