The perseids

Out of memory, CPU out of stock, and out of stock of hard drives will all be heard. However, in the past six months, the global GPU has been in a state of supply shortage. The first reason is that GPUs have now become the brains of artificial intelligence. The development of the artificial intelligence industry has brought a lot of demand; the second is that a large part of mining machines that mine cryptocurrencies are video processing machines. Lots of GPUs.                                                           GPU chip                GPU out of stock prices rose No one would have thought that the GPU, which is the core of game and image rendering, will appear to be out of stock for a long time, and the price will rise. According to some companies that do artificial intelligence, the latest ...

Garmin releases entry-level running watch Forerunner 30! The Forerunner 30 features an ultra-lightweight design concept and a high-resolution screen, providing excellent display both indoors and outdoors. Continuation of the appearance of a square dial, providing turquoise green, slate gray two stylish color. In terms of battery life, turning on the GPS can take 8 hours, enough for the user to finish a marathon, and in the watch mode, the Forerunner 30 can be used for 5 days. pursuing perfection Forerunner 30 uses Garmin's self-developed Elevate wrist photoelectric heart rate technology, which can directly measure the user's heart rate changes through the wrist. It also has a built-in GPS module to accurately grasp various data during running, such as distance, time, pace, etc., so that entry level The professional features of sports watches are even more abundant. At the same time, the Forerunner 30's running function includes automatic pause and automatic lap coun...

On the morning of May 29, Beijing time, Tesla CEO Elon Musk had a magnificent plan. In addition to developing hyperloops and landing Mars, Musk also wanted to change our road traffic. His latest plan is to expand the "Superchargers" network for Tesla's electric cars. He hopes to build more than 10,000 supercharged piles around the world by the end of next year, allowing Tesla owners to quickly recharge their vehicles anywhere, anytime. Musk posted a map in a recent tweet that identified the locations of all the supercharger stations to be constructed and the time of construction. At present, Tesla has built 1,200 supercharger stations worldwide, with a total of 9,800 supercharged piles. These charging posts can give Tesla vehicles 80% of their capacity in less than half an hour, but in some areas, the actual charging speed may not have reached this standard. Musk plans to change this, so that all regions of the Tesla Pull owners can enjoy speedy charging service. O...

The camper is equivalent to a versatile mobile home. It is a "home on wheels" and is the preferred equipment for people who like to have lunch with family and friends in the wild and travel around. Recently, the Native Company of Colorado has manufactured a modified camper "biggie", which is a top-up model, while the other model "smalls" is a seven-seater Dodge Grand Caravan. It has also been loved by campers. Refitted camper "biggie" made by native The native camper comes with a comfortable bed, a well-stocked kitchenette and a convertible living room. After a day of driving, they can relax in the living space of the carriage, a foldable dining table, two lockers, a small wine cooler, a three-tier lighting system, an inverter for charging, etc. The equipment is complete. The "biggie" camper car can be used for cooking. It is equipped with a sink, including a faucet and a drainage system. There is also a seven-gallon storage/w...

IoT is everywhere and although it is powerful, it also brings some challenges. Each sensing element is by definition an electronic device, and all electronic devices have in common the need for a power supply to operate. When deployed in small places such as homes and offices, it is relatively easy to power the sensors, whether they are wired or even button batteries that are replaced. However, due to the wide and wide deployment of environmental sensors, it is usually in remote and large spaces such as factories and buildings. Therefore, the use of wired power is inefficient, and replacing the battery is often inconvenient. In fact, the same problem exists with sensors that are embedded in near but hard-to-access areas such as the center of the machine. The number of sensors currently deployed is already in the billions, and this figure will only continue to grow, showing no sign of slowing down. So, how can this problem be solved? ON Semiconductor's smart passive sensor, Smar...

With the development of power modules, engineers have focused on how to make modules smaller and lighter. In fact, we all understand that we can increase the power density of products by increasing the switching frequency. But why has the module's volume so far not changed so much? What restricts the increase of switching frequency? With the application of switching power supply products under the market, increasingly smaller, lighter, high-efficiency, low-radiation, low-cost and other characteristics are required to satisfy various electronic terminal equipments. In order to meet the current portable electronic terminal equipment, the switching power supply must be made small in size. Due to its light weight, it has become a matter of increasing concern for designers to increase the operating frequency of switching power supplies. However, what are the factors limiting the frequency of switching power supplies? In fact, it mainly includes three aspects: switch tubes, transformer...

Nowadays, most mobile phones are pursuing the ultimate slimness, and the picky of the internal space of the manufacturers has caused the SIM card to be “seriously poisoned” for many times. However, technologies such as e-SIM cards have begun to become popular on wearable devices. Recently, ARM announced its own iSIM card, claiming that it can integrate SIM cards on ARM-based SoCs to further liberate mobile phone interior space. The SIM card is not unfamiliar to everyone. Everyone calls, sends text messages or uses cellular network functions. The SIM card service provided by the operator is indispensable—although the “complex” is small, it contains the user identifier IMSI, Key information such as the KI key and mobile phone number is an essential module for mobile phones. The iSIM card technology announced by ARM, including the securely encrypted hardware area of ​​the Kigen OS system, can not easily extract important data; at the same time, it also integrates the processor, bas...