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Low frequency amplifier on the LA4558 chip. Encyclopedia of radio electronics and electrical engineering

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Low-frequency amplifier on the LA4558 chip

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Latest news of science and technology, new electronics:

Improving the efficiency of PbS quantum dot solar cells 14.06.2024

The latest solar technology research represents a significant breakthrough in improving the efficiency of PbS quantum dot solar cells. This method, based on the use of pulsed light, offers promise for simplifying the production and expanding the applications of these cells. A research team from the Daegu Gyeongbuk Institute of Science and Technology has developed an innovative method that uses pulsed light to improve the electrical conductivity of PbS solar cells. This method can significantly reduce the processing time required to achieve similar results. PbS quantum dot solar cells have significant potential in solar technology due to their photovoltaic properties. However, the formation of defects on their surface can reduce their performance. The new method helps suppress defect formation and improve electrical conductivity. Using strong light to complete the process ... >>

Magnetic Power Bank 5000mAh 14.06.2024

Huawei introduces a convenient and multifunctional charger to the market - Huawei SuperCharge All-in-One Magnetic Power Bank. This magnetic battery allows you to quickly and conveniently charge your Huawei phone anywhere, anytime. With a thickness of just 11,26 mm and a weight of 141 grams, this portable power bank fits easily into a pocket or bag, making it ideal for travel and everyday use. Despite its compact size, this battery provides enough power to charge your phone on the go. The new product supports wired charging with a power of 25 W and wireless charging up to 15 W (and up to 30 W when connected to an adapter), providing fast charging for both the power bank itself and other devices. The battery is compatible with various fast charging protocols such as SCP, UFCS and PD, making it ideal for a wide range of devices. The power bank is also compatible with Huawei phones that support wireless charging. ... >>

Changes in a father's brain after the birth of a child 13.06.2024

A recent study conducted by scientists from the Hefei Institute of Physical Sciences of the Chinese Academy of Sciences found interesting changes in the brains of men after becoming fathers. These changes were associated with involvement in child care, sleep problems, and mental health symptoms. Scientists found that men who became fathers experienced a loss of brain volume after giving birth. This volume loss was associated with greater involvement in parenting, sleep problems, and mental health symptoms. Researchers have found significant changes in men's brains between the prenatal and postnatal periods. In particular, there was a loss of gray matter volume, especially in parts of the brain responsible for higher functions such as language, memory, problem solving and decision making. Men who paid more attention to their children and spent more time with them lost more gray matter in their brains. This also affected their mental health ... >>

Random news from the Archive

Unlock Knock smartphones LG 05.01.2014

LG Electronics Corporation has announced that the Knock feature (formerly known as KnockON), which was originally used in flagship-level mobile devices, will become standard on phones from the LG L Series II line. This will happen in January.

The Knock option is designed to conveniently turn the gadget on and off by double tapping on the screen. It first appeared in the LG G2 model, in which the volume keys and the power button are located in an unusual place - on the back of the device.

Then Knock migrated to the LG G Pad 8.3 tablet and the LG G Flex smartphone with a flexible body and self-healing coating. In early 2014, L Series II phone users will be able to wake up the screen and put their devices to sleep by double-tapping the display.

"Knock is part of the LG UX interface and a great example of what happens when the latest mobile technology and consumer desires come together. No one ever thought that the power button needed to be improved. But our engineers wondered why not turn the entire screen into large key to turn the device on or off," said Jong-seok Park, president and CEO of LG Electronics Mobile Communications.

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