Lighting VF voltage is very low, the general VF = 2.75-3.8V, IF 15-1400mA; Therefore, LED driver IC output voltage is VF X N or VF X 1, IF constant current at 15-1400mA. LED lamps use LED light source with low power (IF = 15-20mA) and high power (IF> 200mA) two kinds of low power LED used to do LED fluorescent lamp, decorative lights, grille lights; high power LED used to do Home lighting, spotlights, underwater lights, wall washer, street lamps, tunnel lights, car work lights and so on. Power LED light source is a low voltage, high current drive device, the intensity of its luminous flow through the LED current size, the current is too strong will cause the LED light attenuation, the current will affect the LED light intensity, Drive need to provide constant current power supply to ensure the safety of high-power LED, while achieving the desired luminous intensity. In the field of LED lighting, to reflect the characteristics of energy saving and long life, choose a good LED driver IC is essential, there is no good driver IC match, LED lighting advantage can not be reflected.
LED green lighting to drive the chip to the innovative design and development, LED lighting is inseparable from the driver chip, so the need for a variety of functions LED light source driver IC. LED lighting optional 36V AC power supply can be considered non-isolated power supply, such as the use of 220V and 100V AC power supply should be considered isolated power supply.http://www.yingyaolighting.com/