Intel may unveil its next generation of processors--nicknamed "Ivy Bridge"--in April, according to the latest reports. The Ivy Bridge chips for desktops and laptops promise a 37 percent performance increase over the current generation of Sandy Bridge processors.
The new Ivy Bridge CPUs use a 22-nanometer architecture, which makes them almost 30 percents smaller than the current chips, which use a 32nm architecture. Smaller chips mean lower power consumption (which is great for battery life) and more room for the integrated graphics chip. Ivy Bridge will support DirectX 11, Thunderbolt, and USB 3.0.
Taiwan-based trade publication DigiTimes reports that the first Ivy Bridge processors to launch will be quad-core desktop processors: the Core i7-3370 series and the Core i5-3570, 3550, and 3450. Because Ivy Bridge is backward-compatible with existing Sandy Bridge motherboards, desktop users should have an upgrade path available.
The first Ivy Bridge notebook chips to launch, according to DigiTimes, will be the Core i7 chips as well: The Core i7-3920QM, 3820QM, and 3720QM. Core i5 processors will pop up later.
Ivy Bridge will be smaller, more powerful, and more energy-efficient, and should be here in just a few months.
Source:http://www.pcworld.com
A Voltage Controlled Oscillator (VCO) is an oscillating circuit whose output frequency changes in direct proportion to an input voltage. VCOs can be made to oscillate from a few Hertz to hundreds of GHz. Every wireless device in use today has some sort of voltage controlled oscillator inside it. For example, there is a least one VCO inside every cell phone that generates the Radio Frequency (RF) waves that are used to communicate by-directionally to the cell tower.
Here today i am going to share Voltage Controlled Oscillator circuit using IC-555 timer.
It is basically an Astable Multivibrator circuit with variable control voltage.We know that internally set voltage at the control voltage terminal is 2/3 Vcc. In this circuit, the control voltage is externally set by the potentiometer. With change in the control voltage, the upper threshold voltage changes and thus the time required to charge capacitor up-to upper threshold voltage changes . Similarly discharge time also changes.As a result the frequency of output voltage changes.
It is basically an Astable Multivibrator circuit with variable control voltage.We know that internally set voltage at the control voltage terminal is 2/3 Vcc. In this circuit, the control voltage is externally set by the potentiometer. With change in the control voltage, the upper threshold voltage changes and thus the time required to charge capacitor up-to upper threshold voltage changes . Similarly discharge time also changes.As a result the frequency of output voltage changes.
If the control voltage is increased the capacitor will take more time to charge and discharge and therefore frequency will decrease. On the other hand if control voltage is decreased the capacitor will take less time to charge and discharge, increasing the frequency of output signal. Thus by varying the control voltage we can change the frequency.
What if every light bulb had its own unique Internet IP address? The possibilities are endless: You could monitor, manage and control every light bulb from any Internet-enabled device- turning lights on and off individually, dimming or creating scenes from your smartphone, tablet, PC or TV – to save energy as well as electricity costs.
NXP has unveiled technology that has to potential to provide every light bulb with its own IP address. In this
way, light bulbs could be controlled from any internet enabled device. The approach builds on its recent
acquisition of Jennic.
The technology, called GreenChip, is small enough to fit within the base of a regular energy efficient light
bulb. Two versions will be launched: GreenChip iCFL, for use with compact fluorescents (cfl); and GreenChip
iSSL, for use with leds. Both chipsets can act as dimmable drivers for smart lamps and are accompanied by:
a standby supply controller, with 10mW no load capability; a 2.4GHz IEEE802.15.4 compatible wireless
microcontroller; and wireless connectivity, enabled by the JenNet IP network layer software.
John Croteau, NXP’s general manager, power lighting solutions and high performance RF, said: “chipset has very low power consumption so it doesn’t negate the benefits of energy efficient lighting. And the cost structure is such that it can ship in consumer light bulbs.”
NXP is partnering with TCP, a leading manufacturer of cfl and led lamps. “TCP makes more than 1million
light bulbs a day,” said Croteau, “and will be launching consumer ready products. This is not a technology
demonstrator.” A further partnership with GreenWave Reality will see an intelligent lighting control and
management solution becoming available.
NXP will also making the technology available under an open source licence and will establish a
consortium to oversee its development. “There will not be an ‘internet of things’ if technology is proprietary or with royalties,” Croteau noted, adding “and if it only works with the iPhone, it won’t be deployable.”
NXP will be taking on ZigBee in the emerging wireless control sector, even though Croteau said this
wouldn’t be the case. “It’s not about competing with ZigBee,” Croteau claimed, “it’s about delivering
something people want to buy.”
Here is a video about this Smart lightning.
Please share this if you like.
One will accept that if i say that world today is totally dependent on the field of Electronics for almost all matters. And the electronic technology we use can be made simplified for our daily life activities.
Today i am going to show one such idea i.e. simplified battery using lemon.
Basically when two dissimilar metals are suspended in acid it forms the battery. So i am preparing a battery which is called as lemon battery.
Lemon contains citric acid and when two wires are connected across it we should get some voltage.
But the voltage we get is very small. And this experiment can be done on other items also like tomato etc which contains acid content in it. The voltage we get for different items are different. And if you ask what is use when small voltage is present as it is not capable of lighting a single bulb also?
But this voltage can be increased but connecting more and more lemons in series so that the voltage produced across them will be large enough to lit a bulb. And i have my first video tutorial on this experiment. You can see the proof of this post by watching the below video. :)
share this post and add your valuable comments.
Hi friends today i am going to share about one of the tablet phone that creating sensation in the market.
The main reason to create sensation is its price. In the world for the 1st time a powerful Android tablet is of price 2,999 only..!!
Yes this is true.And this has been done by a company named DATAWIND.
Datawind Ltd. is a leading developer of wireless web access products and services.
Hardware:
Processor: Connexant with Graphics accelerator and HD Video processor
Memory (RAM): 256MB RAM / Storage (Internal): 2GB Flash
Storage (External): 2GB to 32GB Supported
Peripherals (USB2.0 ports, number): 1 Standard USB port
Audio out: 3.5mm jack / Audio in: 3.5mm jack
Display and Resolution: 7” display with 800x480 pixel resolution
Input Devices: Resistive touch screen
Connectivity and Networking: GPRS and WiFi IEEE 802.11 a/b/g
Power and Battery: Up to 180 minutes on battery. AC adapter 200-240 volt range.
Software:
Supported Document formats: DOC, DOCX, PPT, PPTX, XLS, XLSX, ODT, ODP.
PDF viewer, Text editor.
Multimedia and Image Display:
Image viewer supported formats: PNG, JPG, BMP and GIF
Supported audio formats: MP3, AAC, AC3, WAV, WMA
Supported video formats: MPEG2, MPEG4, AVI, FLV
Communication and Internet:
Web browser - Standards Compliance: xHTML 1.1 compliant, JavaScript 1.8 compliant
Separate application for online YouTube video
Safety and other standards compliance
CE certification / RoHS certification:
Other: Additional Web Browser: UbiSurfer-Browser with compression/acceleration and IE8 rendering.
High Quality Web Anytime & Anywhere:
Connect via GPRS or WiFi
GPRS: Embedded modem eliminates the need for external dongles and allows Internet access everywhere
WiFi: Allows fast Youtube videos at hotspots
Fast web access even on GPRS networks, across the country using DataWind’s patented acceleration technology
Web, Email, Facebook, Twitter and much much more!
Multimedia Powerhouse:
HD Quality Video
Watching movies in the palm of your hand on a 7” screen
Audio library software helps manage your full collection of songs
Applications Galore with Android 2.2:
Games
Productivity software: Office suite
Educational software
Over 150,000 apps!
Full sized-USB port & Micro-SD slot:
Expand memory to 32GB
Use any ordinary pen-drive
Even plug-in a 3G dongle
The main reason to create sensation is its price. In the world for the 1st time a powerful Android tablet is of price 2,999 only..!!
Yes this is true.And this has been done by a company named DATAWIND.
Datawind Ltd. is a leading developer of wireless web access products and services.
From past 8 months this company is trying to develop cheapest Android tablet for the sake of students.And finally the dreams of this company has came true.
They have created a tablet named AAKASH UBISLATE with Android 2.2v.
The configuration of this tablet phone is:
Memory (RAM): 256MB RAM / Storage (Internal): 2GB Flash
Storage (External): 2GB to 32GB Supported
Peripherals (USB2.0 ports, number): 1 Standard USB port
Audio out: 3.5mm jack / Audio in: 3.5mm jack
Display and Resolution: 7” display with 800x480 pixel resolution
Input Devices: Resistive touch screen
Connectivity and Networking: GPRS and WiFi IEEE 802.11 a/b/g
Power and Battery: Up to 180 minutes on battery. AC adapter 200-240 volt range.
OS: Android 2.2.
Document Rendering.Supported Document formats: DOC, DOCX, PPT, PPTX, XLS, XLSX, ODT, ODP.
PDF viewer, Text editor.
Supported audio formats: MP3, AAC, AC3, WAV, WMA
Supported video formats: MPEG2, MPEG4, AVI, FLV
Separate application for online YouTube video
Safety and other standards compliance
Some features of this tablet:
High Quality Web Anytime & Anywhere:
Connect via GPRS or WiFi
GPRS: Embedded modem eliminates the need for external dongles and allows Internet access everywhere
WiFi: Allows fast Youtube videos at hotspots
Fast web access even on GPRS networks, across the country using DataWind’s patented acceleration technology
Web, Email, Facebook, Twitter and much much more!
Multimedia Powerhouse:
HD Quality Video
Watching movies in the palm of your hand on a 7” screen
Audio library software helps manage your full collection of songs
Applications Galore with Android 2.2:
Games
Productivity software: Office suite
Educational software
Over 150,000 apps!
Full sized-USB port & Micro-SD slot:
Expand memory to 32GB
Use any ordinary pen-drive
Even plug-in a 3G dongle
For this tablet external car charger and antenna are provided as accessories and one more thing is that you can connect an external keyboard case whenever needed.
Drawbacks of this tablet:
This tablet with lot of features has also have some of the drawbacks i.e its screen touch is of resistive type which makes the scrolling little bit tough and its camera is VGA camera.And the main drawback is that it has no place in Android market.
But this Android with relatively low price is going to rock really with more that 1,50,000 applications and games.
 |
| AAKASH UBISLATE |
 |
| Tablet with keyboard. |
You can book this tablet for you online at http://www.akashtablet.com.
Enjoy..!!
Enjoy..!!
Here is a video of this tablet by NDTV watch it:
What is meant by antenna ??
Antenna is a piece of wire or a metal rod used to transmit or receive signals. There are many antennas available now a days.
The most basic antenna is called "a quarter wave vertical", it is a quarter wavelength long and is a vertical radiator. Typical examples of this type would be seen installed on motor vehicles for two way communications. Technically the most basic antenna is an "isotropic radiator". This is a antenna which radiates in all directions as does the light from a lamp bulb. It is the standard against which we sometimes compare other antennas.
Antenna is a piece of wire or a metal rod used to transmit or receive signals. There are many antennas available now a days.
The most basic antenna is called "a quarter wave vertical", it is a quarter wavelength long and is a vertical radiator. Typical examples of this type would be seen installed on motor vehicles for two way communications. Technically the most basic antenna is an "isotropic radiator". This is a antenna which radiates in all directions as does the light from a lamp bulb. It is the standard against which we sometimes compare other antennas.
Yagi uda is also a type of antenna whose radiation will be more stronger in one direction only.You can clearly understand when you see its radiation pattern.
You can see that radiation of the antenna is more in one direction and less in other direction.
Please open the above image in new tab if you can't see properly..
The second dipole in the Yagi-Uda array is the only driven element with applied input/output source feed, all the others interact by mutual coupling since receive and reradiate electromagnetic energy; they act as parasitic elements by induced current. It is assumed that an antenna is a passive reciprocal device, then may used either for transmission or for reception of the electromagnetic energy.To increase the transmission power to greater kms the aperture of the antenna is increased so that the radiation pattern becomes more narrower and consequently the gain grows.You can understand still clearly by watching this video.
Thanks for watching.
