Integrated four-channel ULF Toshiba TCB701FNG. Free Technical Library News

NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

Integral four-channel ULF Toshiba TCB701FNG

11.12.2017

Toshiba introduced the TCB701FNG four-channel low frequency linear power amplifier designed for automotive electronics. According to the manufacturer, he managed to achieve energy efficiency "comparable to the efficiency of a class D digital amplifier in a practical power range (0,5-4 W)". Compared to a typical class AB amplifier, the power savings are up to 90%.

The output power of the TCB701FNG is 49 watts per channel at a supply voltage of 15,2 V and a load impedance of 4 ohms. With an output power of 0,4 W, harmonic distortion is 0,01%. The microcircuit is designed for a supply voltage of 6 to 18 V.

Interesting features of the amplifier include I2C bus-controlled self-diagnostics and DC output voltage detection. The second function is to prevent permanent voltage damage to the loudspeaker. In addition, there are built-in protection circuits against abnormal modes, including overvoltage.

Evaluation samples of the TCB701FNG will be available starting in January 2018.

<< Back: White sharks make animals stressed 11.12.2017

>> Forward: The oldest black hole in the universe has been found 10.12.2017

Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

It's better to fall on your side 19.08.2015

For a long time, no one knew how the brain gets rid of biochemical debris: metabolic products, damaged molecules that have served their purpose, etc. Usually the circulatory and lymphatic systems serve as a "sewerage", but between the nervous tissue and the blood vessels in the brain there is a powerful blood-brain barrier , which passes little through itself.

However, a few years ago, Maiken Nedergaard and his colleagues at the University of Rochester found their own garbage collection system in the brain. Blood vessels in the brain are surrounded by sheaths of processes of astrocytes - auxiliary, or glial cells. It turns out a double tube, and "littered" intercellular fluid penetrates into the gap between its two walls, which filters the debris into the blood vessel. Moreover, astrocytes create pressure in it, so that the filtration here is not passive, but active. The system was called glymphatic: it functioned like a normal lymphatic system, only it was made of glial cells.

The work of the garbage collection system depends on the actions of the membrane channels of astrocytes, which require quite a lot of energy. This led to the idea that the glymphatic system of the brain remains functional during sleep: no energy is spent on the work of neurons, on the perception and analysis of external signals, on analytics, etc., so it can be directed to garbage collection.

Further experiments confirmed the hypothesis: active pumping of the intercellular fluid through the glial filter was turned on precisely in sleep. Moreover, during sleep, the distance between nerve cells increased by 60%, which, as it were, shrank to expand the channels for the circulation of cerebrospinal fluid and facilitate its access to the glymphatic system. As for the control over it, here the researchers give the main role to the neurotransmitter norepinephrine, the level of which drops sharply during sleep and increases upon awakening.

But if the glymphatic system turns on during sleep, does it mean that its work depends on how we sleep? Indeed, as Miken Nedergaard and the staff of the University of Rochester and the researchers who joined them at the State University of New York at Stony Brook found out, the efficiency of garbage collection processes in the brain is affected by body position during sleep. Experiments were carried out on animals: laboratory rodents were given a special label that could be used to monitor how efficiently spoiled proteins were removed from the brain, and the animals were put to sleep. As the authors of the work write in the Journal of Neuroscience, brain "sewerage" worked best if the animals slept on their side. It is worth mentioning here that both animals and humans most often sleep on their side, which may be due to the work of the glymphatic channels (although the results will still need to be confirmed in studies involving humans).

The tainted molecules that were monitored in the experiments were tau proteins and beta-amyloid - accumulating in neurons, they cause Alzheimer's syndrome. It is known that many neurological diseases, including neurodegenerative syndromes, are associated with sleep disorders. Perhaps the disruption of the garbage collection system, which is activated during sleep, just contributes to the development of such diseases. So proper sleep helps the brain not only restore mental functions, but also effectively get rid of dangerous substances.

See full Archive of science and technology news, new electronics

All languages of this page

Home page | Library | Articles | Website map | Site Reviews