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參數(shù)資料
| 型號： | P443298 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | TWO LAMP DC TO AC INVERTER |
| 中文描述： | 雙燈管電源轉換器 |
| 文件頁數(shù)： | 3/4頁 |
| 文件大小： | 123K |
| 代理商： | P443298 |
Application Notes
The P44 series is designed to power one to four cold cathode fluorescent lamps. External shutdown and dimming are
accomplished with the enable pin.
External PWM Dimming
:
the inverter through the Enable Pin. The external PWM signal should be 160-250Hz with duty cycle variable from 0%
to 100%.
If external PWM dimming control is required, an external PWM signal is interfaced to
Enable
: If no dimming is required, the inverter is turned on/off through the Enable Pin. Pushing the Enable Pin high
enables the inverter. Pulling the Enable Pin low disables the inverter.
High Current Control For Lamp Warm-up
:
greater than that in the display specification then the inverter has been designed for a higher than specified current to
enhance lamp warm-up. After lamp warm-up, the PWM duty cycle must be reduced to provide input power consistent
with the CCFL rating as shown in Figure 2. Determination of warm-up time and duty cycle reduction is the responsibil-
ity of the end user. Failure to follow this application note may void warranty on the LDB and/or inverter.
If the output current per tube shown on page two of this datasheet is
Contact ERG for any application questions
P443298
Page 3 of 4
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