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適用於投影機的 PowerWise LED 燈光系統解決方案
- Q: 1.LED 做為PROJECTOR 的燈源是可以解決壽命及含汞的問題,可是亮度及光譜偏移不一致的問題解決了嗎? 2.Leaser 與 LED 做為PROJECTOR 的燈源,兩者優缺點各有那些?
- A: 1. LED can solve the life time and meet RoHS requirement. As to brightness and spectrum, the problem belongs to LED issue. I cannot give you a good answer. You need talk to LED vender. 2. Laser light has samller area, so it's easy to carry.
- Q: 在12串1並使用LED架構下, 1.要如何確保每顆LED上的電壓是正確的(LED VF=2.8~3.8V) 2.ADAPTER 要使用48V (3.8V*12顆) 或者是其它電壓?
- A: To drive LED, constant current regulation is required to maintain the constant light output under different Vin and temp varies. So, there is no need to maintain the LED voltage. For your mentioned LED configuration, we recommend u to select LM3423, which is able to drive 18V in series. And, its input voltage is up to 75V. And, you can see the LM3423 datasheet in the web for more detail info. Thanks
- Q: LED的最大单管功率是多少瓦?最高温升是多少度?
- A: 市場上已有5瓦上的產品
- Q: 目前LED光源的效能是否能满足投影机的应用?
- A: 目前LED光源的效能可以满足投影机的应用,我們已有相關的驅動器LM3433.http://cache.national.com/ds/LM/LM3433.pdf
- Q: 如何控制LED灯的色坐标漂移?
- A: becasue this problem depends on LED vender and spectrum. LED supplier can give you a good picture and reason.
- Q: 我觉得几乎没有任何问题,即使用LED光源是最佳的选择。只是在老机型上替换可能有些困难,但新机型设计就没任何困难可言。散热可以采用风冷或液冷,简单且经济,调光也十分方便。
- A: Totally agree your points. Thanks for your comment.
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