led driver design
Posted by: 13ets
on
Hi Experts,
I am new for a led driver design ,
i require design for a led driver from loose cc/cv and contstant cv/cc.
I download pi expert but can't get actual design as per my parameter.
??>>when was i chose o/p caracteristics as power suppply i get my actual design but...... from as per my knowledge it is not suitable or not accurate for led driver .
please give me guidence for a proper design.
1>When i design it as per my technical ,which is ic has or ckt topology give me acuurate variable cv/cc and tight cc/cv.
2>for variable lose cv which is the lower and higher voltage, how can define?
Please look for LYT-2 devices for CV/CC operation. You can use PIXLS to help on the design. You can find this tool in one of the folders in PIExpert Suite. However, LYT-2 doesn't power factor correction. You need to add a valley-fill circuit if you need PF. LYT-2 is to be used on flyback topology.
For CC only design, you can choose LNK-PH, LYT-4, or LNK-PL. These have PF, and you can use other topology and higher power.