News
22/10/2013 08:56
will also start full import. With LED power consumption is reduced, long life, no mercury and LED Bulb environmental protection features is further recognition, LED luminous efficiency continues to increase and cost reduction, LED backlight in large-screen LCD TV with a wide range of...
22/10/2013 08:49
Huangguang Xian
Technical Marketing Director Asia Pacific
Fairchild
MR16
Fairchild, Director of Technical Marketing Asia Pacific Huangguang Xian believes that touch controls will also promote the LED backlight applications. Apple iPhone first of its kind capacitive touch control, many...
22/10/2013 08:48
In addition to outside light due to popularity of camera phones, flash LED driver market is also LED Downlight growing. Leadis (Leadis) is responsible for LED drivers and power management chips Dusheng Tao, vice president, said the camera flash market in 2008 will be...
21/10/2013 08:49
White LED used in general lighting field there are still many problems to be solved , first white LED Bulb LED efficiency , such as the Department of GaInN green, blue and near-UV LED efficiency is still a big margin development .
In addition , comprehensive energy...
21/10/2013 08:49
Second, the linear drive applications
LED Downlight
Linear drive applications is one of the most simplest and most direct way to drive applications . Grade white LED lighting applications, although there are low efficiency and poor regulation , but because of its circuit is simple , compact...
21/10/2013 08:48
Figure 7 GaInN -based LED quantum efficiency and current density in
MR16
The conventional white LED is a side length of 200 ~ 350μm square chip package into round pillar shape , and then to obtain a desired beam illumination , and then packaged in a plurality of white LED components...
18/10/2013 09:30
Figure 6 GSM remote control system structure
MR16 3.4 System Software Design
System Software solidified in the microcontroller chip, modular program design ( flow chart shown in Figure 7 ) , with the C language , including human-machine interfaces ( keyboard scanning...
18/10/2013 09:30
Figure 5 LED module driver circuit
LED Bulb
3.3 Circuit Control System Design
3.3. 1 Controller Circuit Design
LED Module
Master controller STC89C54RD + microcontroller core, by the microcontroller circuits , I / O interface driver circuit , system parameter storage circuit ,...
18/10/2013 09:30
1 : Fully compatible with RT9266; 1 Day / 2 alkaline batteries to recharge cell phones ;
LED Downlight 2: Vin: 0.8 "6.0v Vout: 3.3" 12v Iout: built-in MOS maximum 100MA, external MOS can be expanded stream ; quiescent current of 14uA;
3 : PWM control loop , 0.8V start voltage , contains an...
17/10/2013 08:39
A) energy-saving lighting
LED Downlight
Improve the electric light-emitting efficiency, low energy consumption, high efficiency electric light illumination is an important direction of development.
LED Strip
2) energy-saving lighting control equipment
The use of appropriate...
