At present, governments continue to strengthen efforts to phase-out incandescent, for example, the European regulations in 2009 ban by the end of the 100W incandescent, 75W incandescent ban by the end of 2010. In early August 2011, the National Development and Reform Commission promulgated the “phasing out incandescent roadmap (draft),” clear “road map”, from October 1, 2012, prohibit the sale of 100 watts and more general lighting using incandescent to prohibit the sale of 60 watts and general lighting with incandescent light; October 1, 2014; October 1, 2016, to prohibit the sale and import of general lighting of 15 watts and above with an incandescent lamp. This undoubtedly is a great opportunity to give LED constant current driver. Along with the drive power led high bay lighting constant current control technologies and LED light source prices continue to lower, the distance of the LED lighting into millions of households and further narrow.
Specially designed for LED constant current driver constant current drive power chip, has been mass production and application. These chips are highly integrated LED lighting constant current power supply required for the various functions, making the chip applications continue to simplify the external control circuit, the main stage side of the current technology (PSR) has been maturing; continuously improve the current precision of the chip, to reduce production deviations, to enhance the reliability of power supply mass-produced to provide effective protection; the emergence and maturity of the technology of LED lighting for single-stage multi-function control chip, makes the further decline of the power supply size and cost, better adapted to the narrow space lighting.