Invention Application
- Patent Title: ANTI-FLICKER SCHEME FOR A FLUORESCENT LAMP BALLAST DRIVER
- Patent Title (中): 用于荧光灯灯泡驱动器的防闪烁方案
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Application No.: PCT/IB9800431Application Date: 1998-03-23
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Publication No.: WO9846053A3Publication Date: 1998-12-30
- Inventor: GRADZKI PAWEL M , WACYK IHOR
- Applicant: KONINKL PHILIPS ELECTRONICS NV , PHILIPS NORDEN AB
- Assignee: KONINKL PHILIPS ELECTRONICS NV,PHILIPS NORDEN AB
- Current Assignee: KONINKL PHILIPS ELECTRONICS NV,PHILIPS NORDEN AB
- Priority: US83387297 1997-04-10
- Main IPC: H05B41/24
- IPC: H05B41/24 ; H05B41/298 ; H05B41/36 ; H05B41/392
Abstract:
A fluorescent lamp ballast having an integrated circuit driver which avoids lamp flicker caused by momentary dips in mains voltage during lamp turn on. The anti-flicker scheme within the fluorescent lamp ballast driver distinguishes between operating conditions during and after preheat of the lamp electrodes. By maintaining the voltage for powering the integrated circuit driver above its minimum threshold, the driver does not momentarily shut off during lamp turn on.
Information query
