参数资料
| 型号： | DK-114N-3 |
| 厂商： | Luminus Devices Inc |
| 文件页数： | 8/13页 |
| 文件大小： | 0K |
| 描述： | KIT DEV PHLATLIGHT CBT/PT LED |
| 标准包装： | 1 |
| 系列： | PhlatLight® |
| 主要目的： | 照明，LED |
| 已用 IC / 零件： | CBT，PT 系列 |
| 主要属性： | 可调光 |
| 已供物品： | 2 个板，线缆，文档，散热片，硬件 |
| 其它名称： | 1214-1136 |
PhlatLight ? DK-114N Series Development Kit Manual
and LED being used.
It is important to note that all PT and CBT series PhlatLight
LEDs are built in a common anode configuration. That is, the
copper core-board is at a positive electrical potential in oper-
ation. If this is not factored into the design, it becomes diffi-
cult to connect multiple devices to a common heat sink. The
DK-114N development kit addresses this by configuring the de-
vices in a grounded common anode topology. As a result, the
LED anode is kept at ground and the cathode is at a negative
potential. The LED anode can be in direct electrical contact
with the heat sink without concern of electrical contact with
other LEDs. It is important to note that while the heat sink is
at ground, there is still power passing through it. For further
information, please contact Luminus.
Figure 19: Input and output (optical) pulse
Figure 22: Grounded Common Anode Configuration
Figure 20: Rise time example
This configuration requires that the AC ground line from the
supply providing power to the driver board is isolated from the
DC ground line. A short list of isolated power supplies is pro-
vided in Appendix B.
Appendix B: Isolated AC-DC Power Supplies
Table 3 shows a list of isolated AC-DC power supplies. A power
supply with isolated outputs is required to properly drive the
DK-114N drivers. Failure to use a similar power supply will re-
sult in a malfunctioning board.
Various different power supplies are listed in the table. For
best efficiency, it is recommended to select a power supply
that closely matches the required power.
Figure 21: Fall time example
Appendix A: Electrical Design Considerations
? 2009 Luminus Devices, Inc. - All Rights Reserved
Page 8
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