Constant current boost LED driver circuit drives scrapped screen backlight strip

　 introduction 　　Due to its advantages such as high light efficiency, long life, high lamp efficiency, environmental protection and easy dimming control, semiconductor lighting is currently recognized by all countries as the most promising high-efficiency lighting industry, and is called another revolution in lighti

It is rumored that Apple plans to replace the Apple Watch screen from LTPO OLED to Micro LED in 2020. However, Apple Watch screen suppliers JDI and LGD are both expanding LTPO OLED production capacity, so it can be seen that Apple Watch 6 will continue to use LTPO OLED. Li Bingjie, chairman of Epistar, a Micro LED par

WPG Holdings announced that its subsidiary, World Peace, has launched an automotive daytime running light LED driver reference design based on TI products . The reference design introduced by WPG is a dual-string LED light emitting diode ( LED ) driver that uses an operational amplifier ( op amp ) bas

1. Learn the Gpio schematic diagram Wiring diagram of LED and development board, Summarize: nled1—— GPF4 nled2—— GPF5 nled4——– GPF6 2. Register Two registers are used here, one is the port control register: GPACON-GPJCON, and the other is the port data register GPADAT-GPJDAT Here we can see that the address of

introduction As a light source, dimming is very important. Not only to create a more comfortable environment at home, but also to reduce unnecessary electric light to further achieve energy conservation and emission reduction. Moreover, for LED light sources, dimming is easier to achieve than other fluorescen

This time we are talking about timing and interrupts. Some people say that if you master timing and interrupts, you will master 80% of the functions of a single-chip microcomputer; others say that interrupts are the soul of a single-chip microcomputer. These two sentences all emphasize the importance of interrupts. Le

　　 LED lamp bead parameter introduction: 　　 1. Brightness 　　 LEDs have different brightness and different prices. 　　Lamp cup: general brightness is 60-70lm; 　　Bulb: general brightness is 80-90lm. 　　Note: 1W brightness is 60-110lm, 3W brightness can reach up to 240lm, 5W-300W is an integrated chip, packaged in series

To design LED lighting products, we must first determine which LED packaging structure to use; then consider how to adapt to these packaging forms; we have few choices, and the optical structure is built on these packages; many of our creative ideas cannot be fully utilized. 　　1. Problems in semiconductor lighting app