Power source module for LED lamp

  • US 9,723,662 B2
  • Filed: 09/07/2016
  • Issued: 08/01/2017
  • Est. Priority Date: 10/17/2014
  • Status: Active Grant
First Claim
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1. A power source module for an LED lamp, comprising:

  • a filament-simulating circuit electrically connected to a first bi-pin terminal and a second bi-pin terminal of the LED lamp, each of the first bi-pin terminal and the second bi-pin terminal configured to allow a current to flow from one pin to the other pin via the filament-simulating circuit during a pre-heat process executed by a ballast;

    a current limiting circuit electrically connected to the filament-simulating circuit and configured to limit a current from the filament-simulating circuit;

    a first rectifier electrically connected to the current limiting circuit and configured to rectify the current from the current limiting circuit; and

    a filter electrically connected between the first rectifier and at least one LED of the LED lamp and configured to smooth the current from the first rectifier.

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