Patent ID: 8680870
Filing Date: 2014-03-25
Classification: G01R,H05B

Abstract:
1. An apparatus for burning-in an electronic ballast, comprising: a first stage for emulating an input impedance characteristic of a lamp for the electronic ballast; a second stage connected to the first stage for providing energy feedback to a power supply; an input of the first stage for connecting to the electronic ballast to be burnt-in; and an output of the second stage for connecting to the power supply to provide energy feedback to said power supply from the electronic ballast being burnt-in, wherein the first stage comprises a high frequency ac/dc converter to emulate the input impedance characteristic of the lamp for the electronic ballast, wherein the input of the high frequency ac/dc converter is connectable to an output of the electronic ballast to be burnt-in by a circuit comprising an inductor and an LC filter, and wherein gate signals for first and second transistors of the high frequency ac/dc converter are switched at the same or nearly at the same frequency as the operating frequency of the electronic ballast to be burnt-in.