Eliminating Flicker and Open Load Protection for Driver Compatible with NAFTA Dim ECG
AssigneeLedvance GmbH
InventorsZhifeng LI, Hui YE
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Abstract
An electronic driver for transforming an electronic ballast input voltage into an operating voltage for an LED lighting module. The driver includes a flicker eliminating circuit, which is adapted to operate in a saturation mode when the input voltage is below a threshold voltage. It operates in a switch mode when the input voltage is above a threshold voltage. A voltage drop in the flicker eliminating circuit in the saturation mode is higher than in the switch mode.
Claims13
An electronic driver for transforming an input voltage provided by an electrical ballast into an operating voltage for an LED lighting module, the electronic driver comprising:
- a flicker eliminating circuit adapted to operate in a saturation mode when the input voltage is below a threshold voltage and adapted to operate in a switch mode when the input voltage is above a threshold voltage, wherein a voltage drop within the flicker eliminating circuit in the saturation mode is higher than in the switch mode.
Dependencies are inferred from the claim text.