🤖Have you ever tried Chat.M5Stack.com before asking??😎
    M5Stack Community
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Groups
    • Search
    • Register
    • Login

    Audio Amplifier NS4148 causing M5stack Core reboot with PWM tone

    Cores
    1
    1
    3.2k
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • arzamanA
      arzaman
      last edited by arzaman

      Hi

      I’m facing a strange issue with my M5stack core implementation

      When I generate a tone used to fire a sound alarm, a continuous “beep”, in my control process this causes a reboot of the M5stack core

      I drive the GPIO25 with PWM signal (just need a beep)

      Seems something related to the power used by the class D amplifier NS4148 that sink too much current from EA3036 buck converter and this cause ESP32 reboot

      0_1649681508577_4570a695-38e9-4323-a975-73839b49273d-image.png

      notice that I power the M5stack core via HLK-PM01 Enclosed AC DC Converter 1 Output 5V 600mA

      does any one experience something similar ?
      Any idea / suggestions on how to drive the audio amplifier properly to reduce power consumption ?

      Thanks
      Davide!

      1 Reply Last reply Reply Quote 0
      • First post
        Last post