Sensor power supply management system and method

Abstract

The invention discloses a sensor power supply management system and method. The sensor power supply management system comprises an NMOS (N-channel Metal Oxide Semiconductor), a PMOS (P-channel Metal Oxide Semiconductor), a comparator and a NOT gate module, the NMOS and the PMOS are connected with the NOT gate module through the comparator; the comparator is used for comparing the two input voltages, when the positive end voltage is larger than the negative end voltage, a high level is output, and otherwise, a low level is output; the NOT gate module is used for performing logic NOT on the digital signal; and according to the low-frequency narrow-pulse-width power supply mode, when an enable signal is not detected, a low-frequency narrow-pulse-width signal is provided, when the pulse width signal is at a high level, if a smoking action is detected, power supply is continuously carried out to maintain enable signal detection, and after the enable signal is finished, power supply is recovered to be the low-frequency narrow-pulse-width power supply mode. Through the low-frequency narrow-pulse power supply mode, the standby current and the standby time can be effectively reduced in a non-smoking state, so that the standby power consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of power supply management, and particularly relates to a sensor power supply management system and method. Background technique [0002] At present, most electronic atomizer devices use microphones or MEMS sensors to detect smoking; however, in the existing electronic atomizer devices, the MEMS sensor needs a power supply for separate power supply, and a current of about 100uA is required to ensure the normal operation of the MEMS sensor. However, When the smoking state is not detected, the standby current and standby time are large, thereby increasing the standby power consumption of the MEMS sensor in the system. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a sensor power supply management system and method to solve the above problems. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] A sensor power su...

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Problems solved by technology

[0002] At present, most electronic atomizer devices use microphones or MEMS sensors to detect smoking actions; however, the MEMS sensors in existing electronic atomizer devices require a separate power supply, and a current of about 100uA is required to ensure the normal operation of the MEMS sensor. However, When the smoking state is not detected, the standby current and standby time are large, which increases the standby power consumption of the MEMS sensor in the system

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