Shaowei Xie

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  • ShaoWei Xie
  • 2016
In order to solve the problem that special audio chip cannot rewrite Speech content online, a low-cost technological scheme is proposed in this paper. It adopts Pulse Width Modulation (PWM) technology and microcontrollers with PWM peripherals to turn WAV file date into Pulse Width Modulation wave and to recover analog speech signal through low-pass filter.(More)
According to the characteristics of telemetry system, a simple and reliable solar PV charge controller is designed, which has the function of over charging and discharging protection. The controller uses MSP430 microcontroller and other low power consumption integrated circuit and can reduce power consumption through the intermittent control technology. The(More)
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