Electronicsunit Blog

008.05.09 Not Only Convenience

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Telephone Cards

Telephone Cards

Smart cards have brought us not only convenience, all kinds of smart cards have make our life happier. You may feel surprise, But it is true.

Don’t tell me you have none of cards, everyone must use cards during working, shopping, transportation, telecom service and so on. Without smart cards, our lives aren’t compete.

Today, I don’t have mood to tell you how smart cards improve our daily lives. Let me tell you why smart cards make our life happier. That’s it.

News from One World South Asia: A smart card launched by the government of India provides quality health facilities to people in rural areas, who lack access to basic healthcare. The cashless scheme offers more choices to the poor and saves them from falling prey to corrupt practices of officials.

A man has received a card.

A man has received a card.

The RSBY is a scheme with many firsts to its credit. It is arguably one of the largest mass health insurance programmes in the world. It effectively addresses the health concerns of those in the BPL category and also the poor, unorganised workers.

The RSBY provides a health insurance amounting to Rs 30,000 per year to five members of every BPL family. This is done through smart cards, which, with a unique fingerprint identification system, make them practically foolproof.

Along with National Rural Employment Guarantee Act (NREGA), loan waiver scheme and scholarships to Muslims, the rural health insurance scheme helped the Congress reap rich dividends in the general elections. Spurred by its success, the government is extending the cover to social and economic segments, too.

Credit Cards

Credit Cards

The brain behind the RSBY is Anil Swarup, director-general, labour welfare in the ministry of labour and employment. Swarup said that the major reason behind distress in the farm sector is absence of a healthcare system to treat illnesses that affect the people often. The scheme was meant to fix this problem.

“We plan to expand this scheme to 600 districts across India in future and make healthcare accessible to all. A unique feature of the scheme is that it is cashless and this was initiated to root out corruption at the grassroots level. In the RSBY, if Rs 100 is allotted to a person, he gets the entire amount. This is where the efficacy of the scheme lies,” he remarked.

The simplicity of providing insurance has been noticed in the US too. A report in the Wall Street Journal elicited a response from the new Obama administration, which is trying to find a way to fulfill an electoral promise to give quality healthcare to its marginalised poor

108.04.09 Slide Switches Tailored For Mobile

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Look at the cell phones below, aren’t they pretty or exquisite?

slider phone 03

Mobile With Slide Switch

 

 

 

 

 

 

 

 

 

Many people prefer slider phones, especially female users. They are really easy to attract eyeballs Meanwhile, these kinds of phones are easy to be broken down as a result of their frames.

 

slider phones

slider phones

Recently C&K Components has unveiled the OS series of compact two-position slide switches that feature flexible design for easy integration into standard and custom mobile communication devices and accessories, as well as test and measurement equipment, computer peripherals and network products.

Slide Switch

Slide Switch

The OS series slide switches feature shorting or non-shorting contacts with gold or silver contact plating. Maximum contact resistance is 20m?, with a minimum insulation resistance of 100m? at 500Vdc. Dielectric strength is 500Vac for one minute, and operating temperature ranges from -10°C to +70°C. Mechanical and electrical life for the OS series slide switches is to 10,000 cycles. The switches are available in bulk packaging.

“These slide switches were originally developed for a leading manufacturer of smart phones who required a two-output slide switch that utilized very little space on the PC board to conform to strict real estate constraints,” said Vinny Acampora, product manager for C&K. “The OS series switches are a particularly ideal solution in that they are capable of ‘piggy backing’ on top of a micro-USB connector, and also feature multiple actuator options and termination configurations to meet any application-specific needs.”

008.04.09 Eco-Friendly And Practicality

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Remote Control 01

Remote Control 01

Have you ever owned a lawn mower on your garden. And which kind of engine does it have, how does it be controlled. I have found that the most lawn mowers used by us today are not easy to operate and do harm to the environment more or less. Haven’t you found it?

If you realize it, have you ever thought this situation may become better one day. The answer is yes. Because lawn mower manufactures now are committed on the new hybrid remote control lawn mowers and the new product would have perfect balance between eco-friendly and practicality.

Southern RobotX introduces hybrid remote control lawn mowers that reduce the amount of damage we do to the environment while mowing our lawns. According to the EPA, lawn mowers are responsible for nearly 5% of our nations air pollution. Electric mowers and push reel mowers are the most environmentally friendly choice for keeping the lawn trimmed, but are only practical on small lawns.

Remote Control Lawn Mower

Remote Control Lawn Mower

Electric mowers have been around for a while, and are very environmentally friendly. There are some really impressive robotic units that are fully automatic with sensors for this, that, and the other. However, most consumers look for products that benefit them, and not just the environment. Electric mowers are only practical on small lawns without slopes. One generally has to bury wires in the yard similar to the invisible dog fence systems and fool with charging batteries or extension cords. Remote control lawn mowers from Southern RobotX utilize a patented hybrid power system that reduces fuel consumption by 40% (compared to other mowers), while remaining practical on any lawn. And, of course, the most environmentally friendly mower is still the push reel from the days of Beaver Cleaver. But then again, it boils down to the practicality of the mower. If not many people use it, it is not doing the environment any good.

Remote Control 02

Remote Control 02

Slope mowing capabilities up to 70 degrees is where these remote control lawn mowers really become practical, and not just fun. Lawn care professionals are benefiting from increased productivity, while the environment is benefiting from reduced air pollution. A lawn care professional generally resorts to 6 or 8 men, equipped with ozone-eating weed eaters, for slopes over 40 degrees. Now they use one man, equipped with a remote control lawn mower, to take on the slopes and ditches. The others are out focusing on productivity. It is a win-win situation for the environment as well as lawn care professionals.

Radio Remote Control Lawn Mower

Radio Remote Control Lawn Mower

Reducing the environmental issues with Mother Earth requires much more than just a group effort to get everyone on board with going green when the “group” is everyone in the world. Only a small percentage of the world’s population is concerned with the environment. Green technology (even if it is not 100% green) benefiting the consumer, and not just the environment, is a clever way to get those that are not concerned with the depleting ozone layer to do their part without even knowing it. So, until they come out with seawater powered engines, hybrid power is the way to go.

208.03.09 Latest Low Dropout Voltage Regulator

to Capacitor, Power Supply & Distribution — Tags: ,  

Recently New Japan Radio Co. Ltd has released the NJM2835 low dropout voltage regulator with a 20V maximum input voltage Io=500mA.

EDA Model

EDA Model

One use of volatage regulator

One use of volatage regulator

Since it is a low dropout voltage regulator, NJM2835 significantly reduces the power loss that occurs with conventional three-channel regulators triggered by differences in electric potential between input and output, reducing power consumption in electronic equipment.

The small-size 2.2µF ceramic capacitor compatibility and built-in bypass capacitor contribute to downsizing of the mounting board.

NJM2835 is a 500mA output low dropout voltage regulator featuring ceramic capacitor compatibility, high precision output (±1 percent), high ripple rejection ratio, low noise and maximum input voltage of 20V.

With its wide output voltage coverage of 2.1V-15.5V (0.1 step) and 500mA output current, the NJM2835 can be applied to the power sources of CDDs (12V system), A/V equipment (8-9V system) and motors (12V system).

The NJM2835 is suited for applications that are incompatible with the conventional model, NJM2830 (20V maximum input voltage Io=300mA), because of its low output current.

008.03.09 GPS Phone Is Coming

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A recent Forrester Research study indicated that just 4 percent of U.S. adults own or use a phone-based navigation system and just 2 percent use it regularly.

iPhone + GPS = Google Maps

iPhone + GPS = Google Maps

But Forrester and other research firms are optimistic those numbers will rise rapidly in the near future. Frost & Sullivan, a consulting firm, estimates that the number of subscribers to phone-based navigation systems will grow from about 4.5 million last year to 28 million by the end of 2013.

I’ve been relying on my phone for most of my navigation needs since I got it last year. I’ve been using the Google Maps application preinstalled on the iPhone. Although it doesn’t do turn-by-turn navigation, it will plot a course that you can follow.

The new iPhone programs go well beyond Google Maps to offer true turn-by-turn navigation. There are now at least four different developers with such programs in the iTunes App Store, many of whom offer multiple programs, each with a map of a different area of the country or world. And more such programs are on the way.

The two that I’ve played with are Gokivo and AT&T Navigator. Both programs work adequately. The course maps are generally easy to follow. And on the AT&T Navigator, at least, the voice prompts were generally clear.

One benefit of such programs over many stand-alone GPS devices is that they can tap into your phone’s data connection. The Navigator, for instance, can get real-time traffic information and use that to plot or adjust suggested routes. Both programs allow you to search for nearby restaurants, gas stations and other establishments, and then give you directions.

Gokivo has some nice features that Navigator lacks. You can play music from your iPod library directly from the program. And it will let you pull in addresses from your list of contacts.

But neither program is ideal. Unlike my TomTom, both programs display their maps in portrait, not landscape mode, which means you get a narrow view of your course. And they both tend to refresh their maps slowly. As a result, the on-screen motion can be halting, which means you may be farther down the road than the application thinks you are.

Iphone GPS

Iphone GPS

What’s more, the programs cost $10 a month each on top of your normal data fees. There’s an additional $1 charge to download the Gokivo application, though you can download AT&T Navigator for free. That can get pricey over the course of the year, especially since you can buy a low-end GPS device these days for less than $100.

And you’d better make sure you have a car charger when you’re using these applications. Because they keep the screen on constantly and frequently ping the data network to refresh their maps, they can run down your battery very quickly.

Those aren’t minor quibbles. I’m not convinced that I’ll stick with either Gokivo or AT&T Navigator for the long haul. But the programs will get better and, if they don’t, I can try others.

Regardless, I’m probably not going back to my TomTom. If only for the convenience factor, having GPS navigation on my phone is a better experience.

307.31.09 Spacewalk For Replacing Batteries

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Recently astronauts of international space station went on several spacewalk. One of the aim is to replace station Storage batteries.

Astronauts Chris Cassidy and Tom Marshburn replaced the first of four 375-pound batteries in a spacewalk that could take nearly eight hours, NASA said.

Photo provided by NASA

Photo provided by NASA

The replacement mission was cut short Wednesday after carbon dioxide levels rose in Cassidy’s suit. The lithium hydroxide canister that scrubs carbon dioxide from the suit was replaced for Friday’s walk, NASA officials said in a release.

The astronauts are replacing four Port 6 truss batteries with batteries designed to last more than six years and 38,000 charges. Each new battery measures 40 inches by 36 inches by 18 inches and weighs 375 pounds.

The International Space Station is powered by a photovoltaic system that gathers solar power and stores it in the Port 6 batteries.

The image obtained from NASA

The image obtained from NASA

That made for a long, hand-over-hand trek for the spacewalkers, taking them about as far as they could get from the hatch leading back into the orbiting outpost, about 150 feet. “Take your time,” the astronauts urged each other.

These batteries are critical, storing the power collected by the space station’s solar wings. The old batteries were launched in 2000. NASA is uncertain how long those original batteries might last and wants new ones installed before the old ones die.

007.31.09 India’s giant inverter company

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‘At present, the company has a market share of eight per cent under battery inverters. Launch of four battery inverter models are in the pipeline during the next three to four months,’ Mr Shukla said.

‘We are currently utilising 60 per cent of our installed production capacity. It will be raised to 75 per cent during the fiscal to meet the company’s desired objective in terms of market share,’ he added.

Inverter01

Inverter01

Luminous Power Technologies General Manager Amit Shukla today told Indiablooms.com over phone that the company also aimed at grabbing a market share of 18 per cent under battery inverters during the current fiscal.

The manufacturing units of the company are located at Baddi and Gagret in Himachal Pradesh, with daily installed output capacities of 5,500 battery inverters and 7,500 inverters, respectively.

inverter02

Inverter02

The company also planned to set up another unit at Gagret for producing SNS batteries, the GM said and declined to divulge further details in this regard.

Moreover, Luminous Power Technologies would recruit 150 sales personnel in the next three to four months and the current headcount stands at 180 in this regard, according to him.

The use of inverter

The use of inverter

‘The company notched up a turnover of Rs 650 crore during the past fiscal and such figure was assessed at Rs 533 crore in 2007-08. We are eyeing a turnover of Rs 1,000 crore this fiscal,’ Mr Shukla said.

The company is having 7,000 authorised dealers and 12,000 distributors across the country.

207.30.09 When Will Optic-Fiber Network Be Covered Globally?

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Since the advent of optical fiber, We have entered a high-speed Internet era. Now all the countries are building their optic-fiber networks, and it has increasingly high penetration rate.

Recently the Indian government proposed to allocate 260 million rupees ($5.4 million) under the federal budget to set up an optic-fiber cable network exclusively for the defense forces.

 Most of the bandwidth to be vacated by the defense forces would be sold during the auction of licenses to start third-generation services, expected later this year.

Sample

Sample

The government expects to generate 350 billion rupees from the proposed auction, the budget document for the fiscal year ending March 31, 2010, showed.

The budget also proposed allocating 140.15 billion rupees for Bharat Sanchar and 17.25 billion rupees for the other state-run telecom operator, Mahanagar Telephone Nigam Ltd.

The Indian government holds a 56.25% stake in Mahanagar Telephone, which is listed on the Bombay Stock Exchange and the New York Stock Exchange.

optical fiber

optical fiber

But in Africa, many users still can not experience the high-speed network. “You can see, I try to click on the link but it’s not coming fast. It’s quite slow,” the Zambian national complains. “Then I have to purchase more time and it costs me another 25 meticals (about one dollar).”

Mauritius-based company SEACOM promises to revolutionise communications in Africa and lower bandwidth costs by up to 90 percent, after switching on the cable that resulted from a two-year, 600-million-dollar (427-million-euro) effort.

Countries like Kenya and Uganda can now experience broadband connections for the first time, while others like South Africa — which already has high-speed Internet — expect the new cable to lower costs by boosting competition.

But many end users will have to wait to see the benefits.

In fact, many don’t know SEACOM exists.

At the Teledata Internet cafe, employee Zacarias Tovela said SEACOM hadn’t changed web surfing there yet.

Internet Cafe

Internet Cafe

“I know there’s a new service called SEACOM, but I don’t know if we’re connected to it or not,” he said.

SEACOM spokesman Frederic Cornet said the company sells bandwidth wholesale to local service providers, who until now have relied on slower, costlier satellite connections.

The new cable will also boost telephone service in countries where international calls can be a shout in the dark.

SEACOM says land-based infrastructure is being rolled out in most countries along the coast to distribute the new network to users along the length of the continent.

Meanwhile, ordinary users hope the benefits will start arriving soon.

Orray Carlos, owner of Internet Express cafe in Maputo, laughed as he watched his connection speed bounce anaemically around one megabyte per second. SEACOM promises speeds of 1.2 terabytes per second — one million times faster.

007.30.09 Micro-Small RF Connectors

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New SMPM microminiature RF connectors offer the same performance and convenience as the proven SMP connectors, but in a form factor that is 30% smaller. With a low VSWR through 40 GHz, SMPM connectors offer a versatile solution for high-density packaging, allowing center-to-center spacing of 0.135 inch

The connectors are designed for rugged environments, where harsh mechanical shock and vibrations are found. Their small size also makes them a favorite for ground and airborne radar, antenna systems, and other communications systems where dense packaging means compact size matters.

RF Connectors have microminiature SMPM form factor.

RF Connectors have microminiature SMPM form factor.

Available with smooth bore or fully detented interface to provide insertion forces of 2.5 or 4.5 lb, 40 GHz SMPM microminiature RF connectors allow center-to-center spacing of 0.135 in. Available in cable-mount jacks, board-mount receptacles, and with accessories such as adapters and shrouds with range of configurations, SMPM connectors are the space-saving solution to next-generation systems. They work with .047-inch semirigid cable and T-flex 405 cable. The connectors are designed to accommodate radial and axial misalignments of 0.010 inch to allow easy mating.

207.29.09 New Medical Power Adapter

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News from ThomasNet: Sunnyvale, California – Magic Power Technology Inc. introduces the MPM-X12Y, a single output 120 watts power adapter designed specifically for medical equipments. MPM-X12Y comes with active PFC and is CEC/Green Power and Energy Star Group V compliant. The BF compliant power adapter has minimal current leakage and is designed for use in devices coming in contact with patients.

Employing 4-pin DIN connector at dc output, 12 W MPM-X12Y is mechanically designed with wall mount capability and strain relief kit to prevent accidental ac power cord decoupling. It comes with active PFC, universal ac input for worldwide use, and standard protection mechanisms in cases of over voltage and short circuit. EN 60601-1, UL 60601-1, and CCC Medical Safety Standard approved, device is also available in +12-13.8, +19-20, +24, and +36 V output voltage models.

Medical Power Adapter is Energy Star Group V compliant.

Medical Power Adapter is Energy Star Group V compliant.

About Magic Power Technology Inc.

Magic Power Technology Inc. (Corporate office located in Sunnyvale, CA.) designs, develops, manufactures and distributes power supplies.  They market their products primarily to industrial control vectors, telecommunications, medical equipment manufacturers, and embedded system markets.

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