In recent years, low carbon, energy saving and environmental protection have attracted more and more attention. The use of led lighting is in line with the development trend and trend of energy saving. The LED is a light-emitting diode. It is not an energy-saving lamp or a fluorescent tube, but its brightness is 5-6 times that of an ordinary lamp. Because of this, LED lighting is becoming the trend of energy-saving lighting.
According to the EU regulations, starting from September 1, 2009, all supermarkets are not allowed to sell incandescent bulbs, nor can they sell high-voltage fluorescent bulbs, only LED lamps. Then, how is China developing in the next step? Is it still vigorously promoting energy-saving lamps, or is it actively developing LED lighting? To be honest, energy-saving lamps are not as energy-efficient as LEDs, and a large amount of mercury is used in the manufacturing process of energy-saving lamps. The impact of mercury on the human body and the environment is very large, especially the disposal of scrapped energy-saving lamps, which can cause great pollution to the environment.
The energy-saving effect of LED lighting is very obvious. According to relevant information, if China's LED lighting accounts for 1/3 of the entire lighting market, then the annual power generation of two Yangtze River Three Gorges hydropower stations can be saved.
At present, all countries in the world attach great importance to the development and utilization of LEDs. NEC has developed and marketed a new type of LED bulb, which is similar in shape to the current incandescent bulbs and is rapidly spreading to ordinary households. AT&S, the world's leading manufacturer of printed circuit boards, is actively developing printed circuit boards for LEDs and intends to use such printed circuit boards as a pillar of the future. Panasonic Electric Works has developed CEM-3 CCL for high heat dissipation performance for LEDs 2 to 3 years ago and has been shown on "CPCA SHOW".
The Korean government is currently implementing a plan to replace street lights with LED lighting. KPCA, the Korean electronic circuit industry association, has taken the lead in standardizing printed circuit boards for LEDs in the world, and established a working group for printed circuit boards for LEDs. It is taking the time to develop this standard and promote the standardization of printed circuit boards for LEDs.
The Japan Electronic Circuit Industry Association (JPCA) has released the "JPCA-TMC-LED 01S High-Brightness LED Electronic Circuit Board Standard" and "JPCA-TMC-LED 02T High-Brightness LED Electronic Circuit Board Test Method" by the Association this year. .
LED printed circuit boards are not what some of us think are only metal-based (aluminum-based) copper clad PCBs, but according to different uses, some use general FR-4, FR-5, CEM-3, scratch Polyimide plates, some use resin substrates with heat-dissipating vias, high-heat-transfer resin substrates, and some use metal-based substrates, metal core substrates, ceramic substrates.
We have been talking about product structure adjustment, LED energy-saving characteristics, will inevitably become a very important industry in China. LED lighting has a wide range of uses and a huge market. It will not only have a huge impact on China's energy conservation and consumption reduction, but will also provide a huge market for our printed circuit industry.
In the information age, information is an opportunity. Whether the entrepreneurs in the printed circuit industry have already seen the business opportunities of LEDs, let us prepare for the arrival of the LED lighting era!
Application-Specific Integrated Circuit refers to an integrated circuit specifically designed to perform a specific computing task. It is very common to use ASIC for mining in the field of blockchain. This article will analyze the principle of ASIC mining and why it should be anti-ASIC.
For Bitcoin, mining has gone through four stages: CPU, GPU, FPGA and ASIC. GPU is naturally suitable for parallel simple operations, so the execution of SHA256 is much higher than the CPU. FPGA is a programmable hardware, because it has a certain degree of universality, so the unit price will be relatively expensive. ASIC has a large initial design investment, but the unit price will be cheaper after mass production. Therefore, if you can determine that the market size is relatively large, the use of ASIC technology will be the most cost-effective.
This is the basic principle of ASIC.
In a nutshell, mining is running complicated calculations in the search for a specific number. Whether it`s an ASIC miner or a GPU mining rig, mining hardware must run through many calculations before finding that number. In proof of work systems like Bitcoin, the first one to find that number gets a reward - at the time of writing, 12.5 Bitcoins worth around $96,850. That reward will fall to 6.25 Bitcoins in May 2020.
There are so many people and powerful computing systems trying to mine Bitcoin that miner groups form to find that number and share the profit. Even more, the faster your hardware, the more you earn. That`s why people who can afford it opt for ASIC miners because it gives them the greatest chance of earning cryptocurrency in exchange for their investment.
Each cryptocurrency has its own cryptographic hash algorithm, and ASIC miners are designed to mine using that specific algorithm. Bitcoin ASIC miners are actually designed to calculate the SHA-256 hash algorithm. In the case of Litecoin, it uses Scrypt. That means technically they could mine any other coin that`s based on the same algorithm, though typically, people who buy ASIC hardware designed for Bitcoin mine that specific digital currency.
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