B22 PIR Motion Sensor LED Light Bulb

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  • Lapwing
    Member
    • Feb 2015
    • 40
    • UK
    #1

    B22 PIR Motion Sensor LED Light Bulb

    PIR BC B22 LED Motion Sensor Presence Detector Light Bulb. Indoor Use Only.
    Voltage: 240 Volts
    Bulb Wattage: 2.4w. 32 LEDs.
    Colour Temperature: 3000K Warm White
    Measurements: Height 70mm x Diameter 50mm
    120° Beam Angle. Activated within 5m.
    Long Life: Up to approx. 30,000 Hours.

    I have had this in use for 21 months, its probably been on for only 2 minutes every night for the 21 months.

    Now it wont work properly, the LED'S just flicker when the light is tripped by the PIR.

    It's only a cheap thing to replace but i don't like chucking things out if i can fix them

    The caps look ok to me. The resistor looks a bit scorched in the middle.

    Do the LED'S flickering on and off point to the two rectifiers being the main suspects ?
    Attached Files
    Tags: None
    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 31048
      • Albion
      #2
      Re: B22 PIR Motion Sensor LED Light Bulb

      recap it, you cant tell if small ones are bad wihout an esr meter.

        Comment

        • fzabkar
          Badcaps Veteran
          • Mar 2009
          • 772
          • Australia
          #3
          Re: B22 PIR Motion Sensor LED Light Bulb

          I would confirm that the supply to the BISS0001 IC is stable. I would also trace out the circuit around the two MCR100-6 SCRs and the string(s) of LEDs. There is an application circuit in the BISS0001 datasheet.


          BISS0001, Silvan Chip Electronics, Micro Power PIR Motion Detector IC, 3V - 5V:
          https://cdn.badcaps-static.com/pdfs/...b00566634a.pdf
          https://cdn.badcaps-static.com/pdfs/...a2d660cede.pdf
          https://cdn.badcaps-static.com/pdfs/...6ea23810b8.pdf
          https://cdn.badcaps-static.com/pdfs/...c75fcb9f77.pdf

          D203S, PIR SENSOR CO., General-Purpose Dual Element Pyroelectric Infrared Radial Sensor:

          https://cdn.badcaps-static.com/pdfs/...221e06e064.pdf


          MCR100-6, ON Semiconductor, Sensitive Gate SCR, 0.8A, 600V, TO-92:

            Comment

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