The performance of high-power LED constant-current
driver circuit is determined by the power supply range, the
circuit efficiency and reliability, design costs and other factors,
these factors are interrelated and influenced each other. We
can not judge the merits of driver circuit by sole one factor. To
design a constant-current driver circuit, we must
comprehensively consider power supply, load and circuit
performance requirements and other various factors, and
select the appropriate type of driver circuit and components to
improve the efficiency of driver circuit and achieve the
required purpose.