Lite-On began producing LED lamps in 1975; the company has steadily grown to become one of the world's largest manufacturers of optoelectronics products by providing customers with visible and infrared product solutions. High-volume production of commercial and application-specific products, as well as strong R&D and vertical integration capabilities have proven to be key and differentiating factors in Lite-On's success.
1. Knowledge preparation To have a deeper understanding of the UCOS-II porting, two aspects of knowledge are required: (1) Target chip. Here is the LPC17xx series chip. They are all based on the ARMv7...
:D May I ask all the experts, how is the ADS configuration file .HFC generated? Using IAR seems to be .ICF file, what is the function of this thing?...
My question:
As shown in the figure, two DDRs,
Why is the DDR mark point ② on the right side Vref_DDR_DQ_1?
Instead of Vref_DDR_CA_2 (or Vref_DDR_CA_1) like the DDR mark point ① on the left,
Shouldn't...
It is said that Tang Monk and his five disciples went to the West to visit the Buddha and obtain the true scriptures. Zhu Bajie also completed his merits and was named the messenger of the altar. Seei...
Recently, I made an equal-precision frequency meter using AT89C51RC. The cost is only a few yuan. The frequency range is 1Hz---20MHz. The sensitivity is >40mVrms. Waveform: sine wave, square wave, tri...
Battery system architecture
For many years, nickel-cadmium batteries and later nickel-metal hydride battery technology have dominated the market. Lithium batteries have only entered ...[Details]
1 Introduction
In megawatt-level, high-power power electronics applications, large-capacity semiconductor devices are required. However, for some applications, even the largest semiconduct...[Details]
Some application designs have higher requirements on the speed of the system's switching power supply to provide voltage output. Figure 1 is a bootstrap circuit, also known as a startup circuit, fo...[Details]
As the LCD market continues to mature, LED TVs are becoming mainstream. Although the only difference between current LED LCD TVs is the backlight source, the picture quality has been greatly improv...[Details]
The simplest white light LED is obtained by adding phosphor to blue light LED, also known as 1-PCLED (Phosphor Converted LED), and its basic structure is shown in Figure 1. Because this LED is encapsu...[Details]
1. Distributed constant current technology
Distributed constant current means: an independent constant current source is set up at each parallel branch point to manage, maintain and control the ...[Details]
After Nick Holonyak Jr.
invented LED in
1962
,
LED
became the focus of the world due to its long life and energy saving characteristics. It has developed rapidly, gradually changing from lo...[Details]
The reasons are nothing more than two situations:
First,
the excessive leakage current of
the LED
causes
the PN junction
to fail, making
the LED light
fail to light ...[Details]
Urban lighting has played a positive role in improving the urban living environment, improving the overall quality of the city, promoting domestic demand, and boosting the city's nighttime economy, an...[Details]
Introduction
In recent years,
white LEDs
have become an increasingly important innovation
in
the
lighting
field. Their superior lifetime and light efficiency make white
LEDs
the pref...[Details]
When backlight applications are saturated, the most promising and anticipated application market for LEDs will shift to general lighting. Currently, the penetration rate of LED backlights for TVs h...[Details]
This year marks the 40th anniversary of the birth of the light-emitting diode (LED), but it was not until the successful development of white light LED five years ago that spectral measurement of LED ...[Details]
LED is an energy-saving and environmentally friendly light source with long life, low power consumption and no radiation. Most experts predict that the 21st century will be a century of solid lumin...[Details]
1 Introduction
IX3476 is the latest 4-channel DC-DC converter launched by Linear Technology. Each of its channels can drive up to 8 1 A light-emitting diodes (LEDs) in series, thus driving up ...[Details]
With the increasing shortage of energy, rising oil prices, and urban environmental pollution, the development and utilization of new energy to replace oil has been increasingly valued by governme...[Details]
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