Energy-recycling burn-in apparatus and method of burn-in for electronic ballasts

摘要

An apparatus and method for burning-in an electronic ballast for a lamp. The apparatus comprises a first stage for emulating an input impedance characteristic of a lamp for the electronic ballast and a second stage connected to the first stage for providing energy feedback to a power supply. An input of the first stage connects in use to the electronic ballast to be burnt-in. An output of the second stage connects in use to the power supply to provide energy feedback to said power supply from the electronic ballast being burnt-in. The energy-recyclable burn-in apparatus can emulate the lamp characteristics from start up to the steady state, process high-frequency ballast output power and recycle the power back into the power grid. The burn-in method includes operating the apparatus for a predetermined period of time such that a voltage applied to the electronic ballast simulates a steady-state operation of a lamp for the electronic ballast.

主权项

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, wherein the first stage comprises at least one active electronic component; a processing unit arranged to control the at least one active component so as to emulate the input impedance characteristic of a lamp; 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.