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Cathode Material with High Energy Density for All-Solid Lithium-Ion Batteries Developed by FDK and Fujitsu

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Fujitsu Limited
Recently, FDK Corporation and Fujitsu Laboratories Ltd.jointly developed lithium cobalt pyrophosphate (Li2CoP2O7), which has high energy density, for the cathode material of all-solid lithium-ion batteries (*all-solid-state batteries). This material enables the development of all-solid-state batteries with higher voltage and higher capacity.
 
In the recent years, not only the batteries’ specifications have become quite diverse but there has also been a hike in interest for high energy density and safety performance.  Apart from the improvement on lithium-ion and other existing batteries, the developmental work is also being carried on certain types of next-generation batteries, which have the potential to outperform the existing ones. 

Smart Microphone with Voice Detection and Keyword Recognition Revealed by STMicroelectronics, DSP Group, and Sensory Inc.

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STMicroelectronics
Smart Microphone with Voice Detection and Keyword Recognition Revealed by STMicroelectronics, DSP Group, and Sensory Inc.STMicroelectronics, a global semiconductor leader, and a top MEMS supplier, alongside DSP Group Inc., a leading global provider of wireless chipset solutions for converged communications, and Sensory Inc., the leader in voice interface and keyword-detect algorithms, has revealed details for a voice-detecting and -processing microphone. It’s highly power-efficient and delivers keyword-recognition capabilities in a compact package.
 
The small System-in-Package (SiP) device integrates a low-power ST MEMS microphone enabled by DSP Group's ultra-low power voice-processing chip and Sensory's voice-recognition firmware. The solution leverages ST's advanced packaging technology to achieve a powerful yet lightweight package, extremely long battery runtimes, and advanced functionality.

Magic in the air: Qi-certified medium power transmitter reference design

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Sponsored Content

Magic in the air: Qi-certified medium power transmitter reference designThe Qi wireless charging standard, backed by an association of 200-plus companies, was developed to meet the need for fast wireless charging in the portable mobile market. Rohm Semiconductor has developed a Qi-Certified Medium Power Transmitter Reference Design using its BD57020MWV wireless power transmitter IC. ROHM is the first supplier in the world to offer a reference design for medium power that has passed interoperability tests with more than 200 Qi-certified devices and has successfully acquired Qi certification under the medium power specification.

10 Inspirational Movies Based on True Events for Every Tech Enthusiast

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Neha Rastogi

10 Inspirational Movies Based on True Events for Every Tech EnthusiastSince a very long time, the entertainment industry has been playing a major role in getting people close to Science, mainly through Sci-fi flicks and TV shows. However, apart from the Sci-fi subjects, there have been a lot of movies based on the true events of Scientists, Engineers or other reputed personalities that have left a big impact on the audience. Such creations not only impart knowledge but also inspire us as to how we can overcome the challenges and keep on working towards our goals with full conviction.

Here, we have compiled a list of such movies that will give you an insightful picture of Science and Technology while conveying valuable life lessons. Let’s have a quick glance at the compilation of movies that every tech enthusiast must watch

Atmega 32u4 Based LED Status (Part 21/25)

Contributor: 

Amanpreet Singh

Atmega 32u4 Based LED Status - Circuit diagramIn the Atmega 32u4 Based USB Controlled LED Series Project, it was demonstrated how to use control transfer to receive data from computer to the peripheral. In this project, it will be demonstrated to transfer data from microcontroller to the host computer. For this, the device will be configured as HID Class Device again. An HID Class device has USB communication over two types of transfers - Control transfer and Interrupt transfer.

When data has to be exchanged from default endpoints i.e. endpoint 0 IN and endpoint 0 OUT only, the control transfer is sufficient to perform the data communication. Usually, HID devices only use control transfer for enumerating with the host.

IR remote controlled DC motor using Arduino

Contributor: 

AM Bhatt

Remote controlled DC motorYou can easily control speed of DC motor using Arduino. We know that the Arduino has analog output through which it generates PWM that is used to vary the speed of DC motor. You may have seen speed control of DC motor using potentiometer or joystick or push buttons with the help or Arduino.

The given project demonstrates how to control DC motor speed using any IR remote (like TV, DVD, AC, STB etc) with the help of Arduino. It also run or stops the motor using remote. The project uses normal set top box (STB) IR remote, TSOP IR sensor and Arduino UNO board. Anyone can use any type of IR remote. Just he has to change the remote codes in the Arduino sketch (program) for the remote. This procedure is also described here while explaining the operation. 

Electricity Anti-Theft System - Over Loading Detection and Automatic Shut Down

Contributor: 

Pawan Kumar

Electricity Anti-theft System Block DiagramElectricity theft is a common problem. Due to electricity theft, not only there are losses to the revenue of the government but over loading and damage to the transformers is an unwanted consequence of the theft as well. 

The project demonstrated here is to show the mechanism of electricity anti-theft system. A pack of parallel connected bulbs is used as load while the programmable circuit operating the supply controlling relay is based on Arduino. The principle used behind detecting overloading is voltage comparison and an additional buzzer circuit is attached to the project to alert electricity theft in the locality. The buzzer mechanism has been added to alert people of electricity theft and demoralize the mischievous elements.

3D Printing Processes - Material Jetting (Part 7/8)

Written By: 

Nikhil A

Material Jetting Process and Apparatus for 3D PrintingMaterial Jetting is one of the standard 3D printing technology that has scope and design pattern suitable for the desktop version of 3D printers as industrial 3D printers. The technology fabricates a 3D part just like an inkjet printer prints a two-dimensional image.

The 3D model is built on a target surface to which droplets or continuous fluids of the building material are dropped layer by layer and each layer is then cured with ultraviolet radiation to get it solidified. The term "Drop on Demand" is used for referring the drop by drop wise fabrication of 3D model in the technology's context. A typical apparatus for material jetting 3D printing has printer head consisting of two nozzles and an UV source. 

Driving Toward a Greener Future

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Sponsored Content

The road to zero-emission vehicles is paved with semiconductors. But the automobile is not a friendly environment: ICs face extreme voltages, currents, temperatures and vibration. Further, electric propulsion needs a battery rated in hundreds of volts, which challenges semiconductor materials, processes, designs, packages, and qualification. Managing the batteries of hybrids and full electric vehicles is a key area for innovative high-voltage technologies. Read more about it in the white paper ]]>“Driving the green revolution in transportation.”]]>

Measure PWM Current with a Modified Moving Average

Submitted By: 

Shalini Verma

As a techie, we do understand the role of Pulse with modulation (PWM) in our daily life as well as in scientific life. From controlling lights to setting speed of motors to the advanced generation of analog reference voltages, their usage is diverse but accompanies a special challenge while measuring the voltage or current of a PWM signal.

James Lewis, through this tutorial, has perfectly explained how to measure PWM current with a modified moving average (MMA) while including INA219 current sensor on the LED power supply. The current sensor used in this project is fast and precise and works by measuring the voltage drop across a precision shunt resistor that the load current flows through.