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    Eliminating flicker and open load protection for driver compatible with NAFTA dim ECG
    1.
    发明授权
    Eliminating flicker and open load protection for driver compatible with NAFTA dim ECG 有权

    公开(公告)号：US11051378B2

    公开(公告)日：2021-06-29

    申请号：US16128090

    申请日：2018-09-11

    申请人： LEDVANCE GmbH

    发明人： Zhifeng Li ,  Hui Ye

    IPC分类号： H05B45/30 ,  H05B45/50 ,  H05B45/37 ,  H05B45/00

    摘要： 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.

    Eliminating flicker at light load for driver compatible with NAFTA dim ECG
    2.
    发明授权
    Eliminating flicker at light load for driver compatible with NAFTA dim ECG 有权

    公开(公告)号：US10405385B2

    公开(公告)日：2019-09-03

    申请号：US16126637

    申请日：2018-09-10

    申请人： LEDVANCE GmbH

    发明人： Zhifeng Li ,  Hui Ye

    IPC分类号： H05B33/08

    摘要： An electronic driver for transforming an input voltage provided by an electrical ballast into an operating voltage for an LED lighting module is provided, comprising an input for connecting the electrical ballast to the electronic driver, an output for connecting the LED lighting module to the electronic driver, and an bypass circuit, wherein the bypass circuit is adapted for being connected in parallel to the output if a low input voltage is provided at the input and for being disconnected from the output if a high input voltage is provided at the input.