LED Solid State Lighting Solutions have unlimited prospects1

With the continuous progress of LED technology, the introduction of many different colors and white high-brightness LEDs has expanded the application of LED to various new markets. In the past, LED, which was mainly used as indicator lights, was able to replace incandescent lamps, fluorescent lamps and other light sources in automotive applications, consumer electronics and other fields with its continuous reduction in cost and further improvement in efficiency. including stable power control to ensure stable product quality with the continuous progress of LED technology, the introduction of many different colors and white high-brightness LEDs has expanded LED applications to various new markets. In the past, LED, which was mainly used as indicator lights, was able to replace incandescent lamps, fluorescent lamps and other light sources in automotive applications, consumer electronics and other fields with its continuous reduction in cost and further improvement in efficiency. including smart phones, LCD TVs, building lighting and general lighting, you can see the LED figure. In the next few years, LED will continue to be used for brand-new solid-state lighting ( Solid State Lighting, SSL) The solution provides more advantages in programmability and flexibility for lighting applications. LED is a low voltage device, according to the required color and current, its direct voltage can be from less than 2V to 4. 5 V, in addition, LED needs continuous and stable current to drive to ensure its brightness and desired color, and needs power conversion and control solutions to match various power supply sources. including AC, solar panel, 12V car battery, DC power supply or low voltage AC system, even with alkaline battery, nickel-based battery or rechargeable lithium ion battery. Anselme Semiconductor has many years of professional experience in low voltage and high voltage technology and power management solutions, and uses these specialties to solve various challenges faced by solid state lighting. whether it's portable display products, automotive interior lighting or LED ballasts, as well as construction, industry, automotive and portable applications, various solid-state lighting solutions have been introduced. NCL30288, introduced by Anselme semiconductor, is a power factor correction quasi-resonant primary current mode controller for LED lighting. NCL30288 is aimed at isolated and non-isolated Buck- Boost/SEPIC constant current LED driver AC-DC power factor correction flyback controller. The controller operates in quasi-resonant mode to provide good efficiency. Due to a novel control method, the device can tightly adjust the constant LED current from the primary. This eliminates the need for secondary feedback circuits, biases and Optocouplers. The device has a very small number of peripheral components and has built-in powerful safety protection functions to simplify the design. This device is specially designed for very compact and space-saving designs. The characteristics of NCL30288 include constant current control capability with primary feedback, current regulation accuracy, power factor correction capability with low harmonic distortion, and line voltage feedforward to enhance regulation accuracy. and has a wide Vcc operating range, with the function of locking and automatic recovery version, and has the ability of secondary diode short circuit protection, open circuit and short circuit LED protection, and- A wide temperature range of 40 to 125C with very low starting current (Typical value is 13A). Compared with other competitive products, NCL30288 has the advantage that it does not need photoelectric coupler or secondary control circuit, nor does it need to grade LED or trim production for accuracy. its specifications exceed the industry's requirements for lighting and support universal power applications (90-305 V) , Simplify the support for the LED direct voltage range, protect the LED driver from overheating under severe conditions, have flexibility in fault handling, and have strong fault handling capabilities. it has sound fault handling capability for common LED system faults and can support outdoor and high temperature environments. NCL30288 can be applied to integrated LED drive electronic products, such as LED bulb, LED power driver, LED light engine, LED lamp tube and LED system electronic control device and other terminal products. Anselme semiconductor completed the merger and acquisition of Fairchild in September 2016 and enriched the LED lighting scheme. FL7740 is a constant voltage primary adjustment PWM controller for power factor correction. FL7740 has a wide universal input range (90VAC? 305VAC), Providing stable CV regulation in steady state (Less than 3) , CV regulation load transient is less than 10, with differential dynamic function, can greatly reduce the overshoot and undershoot of output voltage under line and load transient conditions. For intelligent lighting applications, the standby power of FL7740 is less than 0 under the load condition of 100 mW. 3 W, even under half-load conditions, the power factor is higher than 0 when PF Optimizer is enabled. 9. Scalability of wide output power can be realized. Built-in fast high voltage starting circuit without overshoot, starting time is less than 0. 2 seconds, the output voltage can reach the target CV level through loop gain conversion technology at startup. It has various protection functions such as overload, output diode short circuit, induction resistor short circuit and open circuit, output short circuit and overvoltage, which can ensure the reliability of the system. The LED power controller introduced by Anselme semiconductor can accelerate the development speed of LED related products and ensure the stability of products. It will be one of the best choices for product development.