Power supply ADP-300ER Zener diode parameters unknown

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  • yurik_avs
    New Member
    • May 2020
    • 3
    • Россия
    #1

    Power supply ADP-300ER Zener diode parameters unknown

    Guys, I have a question about the ADP-300ER power supply. While the spare parts I ordered are on their way, I decided to once again check the piping chains of the burnt mikruh. I found the zener diode in a break, so apparently I didn't detect it right away. His positioner is ZD41. Can anyone tell me its voltage? It is located in the harness of the IC41 NCP1612A3 microcircuit
    Here is an extract from the datasheet for this chip. This pin is grounded until the PFC output reaches its nominal level. It is also grounded if
    NCP1612 detects a fault. The rest of the time, i.e. when the PFC stage produces
    rated common voltage, pin 10 is in high impedance state.
    NCP1612A, NCP1612A1, NCP1612A3 and NCP1612B are disabled if Vpin10 exceeds 7.5V.​
    Tags: None
    • yurik_avs
      New Member
      • May 2020
      • 3
      • Россия
      #2
      ZD41 at 3V

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