Invention Application
- Patent Title: Cold cathode fluorescent lamp low dimming antiflicker control circuit
- Patent Title (中): 冷阴极荧光灯低调光防静电控制电路
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Application No.: US09917128Application Date: 2001-07-27
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Publication No.: US20030025462A1Publication Date: 2003-02-06
- Inventor: Paul Fredrick Luther Weindorf
- Applicant: Visteon Global Technologies, Inc.
- Applicant Address: null
- Assignee: Visteon Global Technologies, Inc.
- Current Assignee: Visteon Global Technologies, Inc.
- Current Assignee Address: null
- Main IPC: H05B037/02
- IPC: H05B037/02
Abstract:
A flicker reduction method for a lamp assembly includes providing current pulses to a fluorescent lamp in response to a periodic signal such as a ramp voltage. The current pulses illuminate the fluorescent lamp. The method further includes providing at least a predetermined number of current pulses to the fluorescent lamp per period of the periodic signal. A feedback circuit samples current in the fluorescent lamp to ensure that a predetermined number of current pulses have been provided. After the pulses are provided, the circuit is reset for the next cycle of the periodic signal.
Public/Granted literature
- US06670781B2 Cold cathode fluorescent lamp low dimming antiflicker control circuit Public/Granted day:2003-12-30
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