The invention discloses an ultra-low power consumption underwater sound releaser which comprises a step-down circuit module, a microprocessor module and a signal amplification detection module. The step-down circuit module is used for reducing input voltage and supplying power to the microprocessor module and the signal amplification detection module; the signal amplification detection module comprises an instrument operational amplifier, an operational amplifier and a detection circuit; the instrument operational amplifier, the operational amplifier, the detection circuit and the microprocessor module are electrically connected in sequence, a weak sound wave signal is sent to the detection circuit after being amplified by the instrument operational amplifier and the operational amplifier in sequence, and the detection circuit generates a low-level pulse signal after receiving a signal within a preset range. The microprocessor module in a dormant state is awakened through a low-level pulse signal; low-power-consumption components are adopted, a circuit for awakening the microprocessor through sound waves is built, the overall power consumption of the awakening circuit is only 2 milliwatts, the circuit is simple, and the area of a circuit board can be effectively saved.
本发明公开了一种超低功耗水声释放器,包括降压电路模块、微处理器模块和信号放大检测模块;所述降压电路模块用于降低输入电压并给微处理器模块和信号放大检测模块供电;所述信号放大检测模块包括仪表运放器、运算放大器和检波电路;所述仪表运放器、运算放大器、检波电路和微处理器模块依次电连接,微弱声波信号依次经过仪表运放器、运算放大器的信号放大后发送给检波电路,检波电路接收预设范围的信号后产生低电平的脉冲信号,通过低电平的脉冲信号唤醒处于休眠状态的微处理器模块;该发明采用低功耗元器件,搭建一个通过声波唤醒微处理器的电路,唤醒电路的整体功耗只有2毫瓦,并且电路简洁,可有效节省电路板面积。
Ultra-low power consumption underwater sound releaser
一种超低功耗水声释放器
2021-08-13
Patent
Electronic Resource
Chinese
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