发明名称 |
Cold cathode fluorescent lamp low dimming antiflicker control circuit |
摘要 |
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.
|
申请公布号 |
US6670781(B2) |
申请公布日期 |
2003.12.30 |
申请号 |
US20010917128 |
申请日期 |
2001.07.27 |
申请人 |
VISTEON GLOBAL TECHNOLOGIES, INC. |
发明人 |
WEINDORF PAUL FREDRICK LUTHER |
分类号 |
H05B41/392;(IPC1-7):H05B37/02 |
主分类号 |
H05B41/392 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|