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Thread: LED light power supply circuit

  1. #1
    Junior Member
    Join Date
    Aug 2020

    LED light power supply circuit

    I turned on an LED light today and found that the power supply inside was rectified by a bridge to 300V and then output by 1345D to 300V DC. The LED lights are connected in series. Such a circuit feels too simple, in order to save costs. Serious interference with peripheral electrical appliances! Especially the radio, you can't listen to it after turning on the light. In addition, one of the LEDs will not work if it penetrates the entire lamp, and the durability is very poor. The idea was changed to low-voltage parallel power supply. What is the power supply voltage of a single LED? What is the current in parallel?

  2. #2
    Junior Member
    Join Date
    Aug 2020
    I found the required power management IC on Jotrin's official website´╝Ü and modified it with the XC9515AB02ZR-G model.

  3. #3
    Authorized Lutron Contributor
    Join Date
    Sep 2018
    Thank you for your post Thurman85.

    We would suggest calling us at 1 (800) 523-9466 so that we can better assist you over the phone.

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