Powerful silicon carbide semiconductors from Renesas Electronics. Free Technical Library News

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

Powerful Silicon Carbide Semiconductors from Renesas Electronics

01.02.2012

Renesas Electronics has announced the delivery of three high-power semiconductor devices that use silicon carbide (SiC). New items received the designations RJQ6020DPM, RJQ6021DPM and RJQ6022DPM. They are sets of diodes and transistors in a common package, designed for powerful converters or switches.

The products belong to Renesas' second series of silicon carbide high-power semiconductor devices, the use of which helps to reduce losses. Among the areas of application for new products, the manufacturer names servers, cellular base stations, household appliances such as air conditioners, as well as power supply systems based on solar panels.

The RJQ6020DPM package contains a high voltage SiC-SBD Schottky diode rated up to 600 V with a reverse resistance recovery time of only 15 ns, and two high voltage high power MOSFET transistors with an on-state resistance of 100 mΩ.

The RJQ6021DPM package contains a SiC-SBD diode and two insulated gate bipolar transistors (IGBTs) with a low residual on-state voltage of 1,5V. The RJQ6022DPM package contains two SiC-SBD diodes and two IGBTs.

Introductory samples of products will appear in February at a price of $10 apiece. The company expects to start serial production in May.

<< Back: $7 Hyundai A80 Tablet: 1,5GHz, Android 4.0 02.02.2012

>> Forward: 11 densely populated systems discovered in the universe 01.02.2012

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

Powerful graphene material for high-performance supercapacitors 18.01.2021

A team of scientists working with a professor of inorganic and organometallic chemistry at the Technical University of Munich (TUM) has developed a new, powerful and stable graphene hybrid material for supercapacitors. It serves as the positive electrode in the energy storage device. The researchers combine it with a proven negative electrode based on titanium and carbon.

The new energy storage device not only provides an energy density of up to 73 kWh per kg, which is roughly equivalent to the energy density of a NiMH battery. At the same time, the new device performs much better than most other supercapacitors, at a power density of 16 kWh per kg. The secret of the new supercapacitor lies in the combination of different materials, which is why chemists call the supercapacitor "asymmetrical".

The idea of combining basic materials was carried over to supercapacitors. As a basis, they used a new chemically modified graphene positive storage electrode and combined it with a nanostructured metal-organic framework, the so-called MOF.

Decisive for the characteristics of graphene hybrids are, on the one hand, a large specific surface area and controlled pore sizes, and, on the other hand, a high electrical conductivity.

A large surface area is important for good supercapacitors. This allows a correspondingly large number of charge carriers to be collected in the material - this is the basic principle of storing electrical energy. Through clever material design, the researchers were able to bind graphene acid to MOF. The resulting hybrid MOFs have a very large internal surface area of up to 900 square meters per gram and are very efficient as positive electrodes in a supercapacitor.

A stable connection between nanostructured components has huge advantages in terms of long-term stability: the more stable the connections, the more charge and discharge cycles possible without significant degradation in performance.

A classic lithium battery has a lifespan of about 5000 cycles. The new cell, developed by TUM researchers, retains nearly 90% capacity even after 10 cycles.

See full Archive of science and technology news, new electronics

All languages of this page

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