Karthik Narayanan - electroSome

Getting Started with Scilab – Beginners Tutorial

Karthik Narayanan — Sat, 13 Jul 2013 04:19:05 +0000

SCILAB provides a powerful computation environment along with a rich collection of numerical algorithms for both the engineering and scientific community.

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Variable Power Supply using LM317 Voltage Regulator

Karthik Narayanan — Sat, 11 May 2013 02:25:53 +0000

Until now we had discussed about different voltage regulator IC’s including 7805,723 etc but what’s to be noted was that these were all fixed voltage regulators.So now we shall see how design a simple variable voltage regulator using an LM317 IC. Block Diagram This circuit, like all voltage regulators must follow the same general block […]

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IC LM 723 Voltage Regulator

Karthik Narayanan — Mon, 10 Dec 2012 01:43:59 +0000

The 723 voltage regulator is a voltage regulator commonly used for series voltage regulator applications. With an ability to provide upto 150 mA of current to the load, but this can be extended to any range with the help of some extra circuit involving common components like transistors. It also comes with comparatively low standby current drain, and provision is made for either linear or foldback current limiting.

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High Performance Flexible Solid State Battery

Karthik Narayanan — Sat, 18 Aug 2012 15:28:54 +0000

A research team has developed a high performance flexible solid state battery LIB structured with high density inorganic thin films.

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What’s Inside an Electrolytic Capacitor?

Karthik Narayanan — Sun, 29 Jul 2012 01:43:39 +0000

The aluminium electrolytic capacitor consists of two foils sandwiched between absorbent paper, and wound tightly into a cylinder. The anode, is composed of pure aluminium foil with aluminium oxide formed electrolytically on the surface. The foil has been etched to increase the effective surface area. The cathode is made of high-absorption paper mixed with an electrolyte, in contact with a cathode foil. The electrolyte is used to […]

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Integrated sensors to handle extreme conditions

Karthik Narayanan — Tue, 12 Jun 2012 01:22:13 +0000

A team ofengineers has created silicon carbide based amplifiers having applications in both aerospace and energy industries. The devices can take extreme heat even upto 600 degree Celsius.These integrated circuits are designed over a wide-band-gap semiconductor. According to Dr.Garverick, “Most semi-conductors are made out of silicon, but silicon will not function above 300 degrees Celsius, and there […]

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Custom-Made Magnets

Karthik Narayanan — Thu, 07 Jun 2012 01:12:46 +0000

The properties of a substance depends almost entirely on its constituent atoms and how these atoms interact with each other. But a finite number of atom types, imposes a limit on the variation of properties that a conventional material may have. But a new range of engineered materials called metamaterials have opened a whole new dimension in this field . Metamaterials are composed of sets of nanostructures which are able to interact with electromagnetic waves in almost the same way as atoms and also their properties can be tuned by altering the properties of these nanostructures.

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Carl Zeiss Presents INFRARED 800 and FLOW 800

Karthik Narayanan — Sat, 26 May 2012 01:59:45 +0000

The INFRARED 800 and FLOWR 800 fluorescence modules from Carl Zeiss Meditec can now enable neurosurgeons to understand the speed and direction of the blood flow efficiently and quickly during surgery. The technology, which is also available for plastic & reconstructive surgery in assessing of viable tissue useful in graft surgery. This will enable surgeons to […]

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Panasonic Eluga Power

Karthik Narayanan — Thu, 03 May 2012 01:47:03 +0000

Panasonic has returned to the European smartphone markets with the release of the new Panasonic Eluga Power. Panasonic has now come up with a narrow frame which enables them to pack a 1.5GHz dual-core processor, 1GB of RAM, 8GB of internal storage, NFC technology, 8MP camera with full HD (1080p) video recording) Android 4.0.3 Ice Cream […]

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Asus Memo 370T

Karthik Narayanan — Sun, 01 Apr 2012 16:18:57 +0000

Last January, Nvidia and Asus came up with a product that may change everything. Now the tablet in question has been identified as the new Asus Memo 370T which is actually an upgraded version of the 7-inch stylus-supported Memo tablet Asus debuted at CES 2011. The then showcased tablet ran on Honeycomb and utilized a […]

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