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1. (WO2018099791) CONVERSION CIRCUIT BETWEEN FLUORESCENT BALLAST AND LED.

Pub. No.:    WO/2018/099791    International Application No.:    PCT/EP2017/080142
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Fri Nov 24 00:59:59 CET 2017
IPC: H05B 33/08
Applicants: PHILIPS LIGHTING HOLDING B.V.
Inventors: ZHANG, Xianhui
DE JONGH, Frits, Tobi
LU, Han
TAO, Haimin
Title: CONVERSION CIRCUIT BETWEEN FLUORESCENT BALLAST AND LED.
Abstract:
A tubular LED lamp designed for connection to a high frequency ballast. An electrically conductive screen is provided with an electrical connection between an internal node, such as an internal LED ground, and the screen. This provides a low impedance path5 for leakage currents which bypasses the LED string and thus prevents glow.