System board
System, mainly as the LED circuit board cooling system, will ultimately
lead to the cooling fins heat, shell or the atmosphere material. Early
LED products, systems make more use of PCB-based circuit boards, but
with the increased demand for high-power LED's, PCB cooling capacity of
the materials is limited, so that it can not be applied to its
high-power products, in order to improve the high-power LED thermal
problems, has been developed a high thermal conductivity coefficient of
aluminum plate (MCPCB), the use of metallic materials with better
thermal characteristics of the characteristics to achieve the purpose
of cooling. The system circuit board LED chip capable of effectively
cooling the heat generated into the atmosphere environment, but the
heat generated by LED die can not effectively transfer from the grain
to the system circuit board, when the LED when the power increase and
more efficient, LED's Thermal issues will appear in the LED die cooling
substrate. |
