PWM LED dimming switches on and off at a high speed. The effective if the average is based on the SI time when the LED is on and when off. By using the method PWM LED dimming, on / off frequency must be faster than the human eye can detect to avoid visible flicker. PWM frequency of 200 Hz or higher usually avoid flicker problems. Many PWM current conductors have a specialized LED PWM dimming pin that supports a wide range of frequencies and amplitudes PWM, allowing a simple interface to the external control logic. Often these chips dimming LED driver offers several ways to mitigate an LED.
For example, the LED driver LM3409 from National Semiconductor provides several ways of IF modular LED through PWM techniques. Many vendors, including Allegro Microsystems, Analog Devices, Linear Technology and offer drivers LED PWN National Semiconductor.
Sunday, September 8, 2013
Friday, September 6, 2013
Manchester City FC announced as official partner LG digital display
LG display technologies offer for Manchester City FC after being registered as official partner club digital LED display on a two-year contract. The news comes after more than 360 digital LED screens were installed by LG at Etihad Stadium premium suites, the boxes and fan concourses before the new football season launch. The agreement will allow LG to use the players club crest and advertising, packaging and point of sale materials and brand will benefit from advertising in the match day program. Tom Glick, commercial director and chief operating officer for Manchester City FC, said: "The digital overhaul of our contests stadium and entertainment facilities is just the beginning of our exciting partnership with LG." Further improvements are planned for our fans in the coming months and look forward to the Etihad Stadium and City Football Academy showcase world-class products from LG. "LG has provided more than 320 flat LED displays for the city of the club's youth due to open next summer. In other digital developments, the club announced in May that the stadium Wi-Fi was launched after similar measures from other top clubs, including Liverpool.
Wednesday, September 4, 2013
Innovative Wearable LED screen
Kickstarter is home to many innovative projects , and one that recently appeared on the site is Fos , LED display system laptop via Bluetooth . Display screens, even small flexible that can be used , are nothing new , but this could be the most innovative solution we've seen so far, with many features that allow this unit Fos to show many items that are related with outdoor activities such as walking , running, or anything else you might want to display for others to see .
Fos is a series of LED lights to show a message on a flexible surface . The screen itself is attached to a piece of fabric that can be connected to your body or clothes in different ways. You can put it in your backpack, on your wrist , belt or jacket . The project aims to multiple versions will come , and of different sizes. You can get one that is 11 inches by 3 inches and is intended for people who want an outdoor LED display , sleeve, or you could get triple Fos belt width , meant to be worn at the waist and will show a warning pattern when you're out in the dark, or even a signal back to show how the bicycle is
to go.
Fos come with a full API so you can use your phone to control what appears on the screen , but by default , you can expect simple things like the distance traveled , current operating objectives , and current heart rate . At this time , there are only 20 days for the financing happen, and have received $ 20,000 of a goal of $ 200,000. It's too early to say whether the team behind this new invention will obtain the funds they need , but if you want to help, check out the various incentives still available . This may well be the most flexible portable LED screen so far.
Fos is a series of LED lights to show a message on a flexible surface . The screen itself is attached to a piece of fabric that can be connected to your body or clothes in different ways. You can put it in your backpack, on your wrist , belt or jacket . The project aims to multiple versions will come , and of different sizes. You can get one that is 11 inches by 3 inches and is intended for people who want an outdoor LED display , sleeve, or you could get triple Fos belt width , meant to be worn at the waist and will show a warning pattern when you're out in the dark, or even a signal back to show how the bicycle is
to go.
Fos come with a full API so you can use your phone to control what appears on the screen , but by default , you can expect simple things like the distance traveled , current operating objectives , and current heart rate . At this time , there are only 20 days for the financing happen, and have received $ 20,000 of a goal of $ 200,000. It's too early to say whether the team behind this new invention will obtain the funds they need , but if you want to help, check out the various incentives still available . This may well be the most flexible portable LED screen so far.
The future of light is LED
Brett Sharenow chairs the Pepsi Challenge of lightbulbs. The CFO of Switch, a new company in Silicon Valley, Sharenow has put himself in a cabin 20 by 20 in the rear of the Pennsylvania Convention Center in Philadelphia, and he's asking passersby to get two tones identical white. Behind lies a standard incandescent bulb, household lighting technology that has gone largely unchanged since Thomas Edison invented 132 years ago. Behind the other is an impressive prototype, quasi-art deco-style that contains 10 LEDs and a fluid secret. It is a liquid-cooled bulb, as radically different from Edison's invention as anything that has ever been screwed into a standard socket and hopes Sharenow, the next big thing in the lighting industry $ 30 billion. The challenge: Can you tell which is which?
It's the first day of Lightfair, the annual international trade all that glitters, dazzles, blinks or shines, 500 exhibitors and 24,000 visitors who hung row upon row of light after light.
The future of light is LED
by Dan Koeppel (44.8 MB. mp3)
Subscribe: Wired Features Podcast
This is the last before Lightfair new regulations governing lightbulb efficiency begin to take effect in the U.S. in January, and there is a real sense of history and urgency in the exhibition hall. Ready or not, the way we light our homes and offices is about to change, and the way technology is in this room somewhere.
If all goes to plan, the provisions of the Law on Energy Independence and Security 2007 effectively prohibit 100-watt incandescent bulbs from 2012. Bulbs will seventy five watts in 2013, followed by 60 - and 40-watt bulbs a year later. So the race to find a suitable replacement technology is coming to the last moment. The industry is betting on LED lighting as the way forward, and is virtually the only bulb technology on LED display: There is hardly a single incandescent or compact fluorescent sick to be seen. Only 200 thousand square meters of companies compete to fill their quota of billions in the world-standard plugs and betting on LEDs as the way to go.
There is an excellent reason LEDs have taken on the aura of inevitability: LEDs are semiconductors, and like all solid state technology, which are getting better and cheaper on a predictable curve. In 1999, a researcher named Roland Haitz, then head semiconductor R & D at Hewlett-Packard, co-author of an article that became the manifesto of the lighting industry. In tracing the historical prices of LEDs and projecting future Haitz estimated that the amount of light they produce has increased by a factor of 20 per decade, while the cost will be proportionately reduced by a factor of 10.
Haitz law has proved remarkably accurate. But the lighting industry still has big hurdles to clear before LEDs gain acceptance by consumers. Beyond the very real problems cooling technique, the costs, the color-light is not persistent public dislike of CFLs, which failed miserably in its intended role as a bulb of the future. That feeling has introduced a fuel Tea Party backlash against the new rules, and there have been attempts in Congress to roll back completely.
The reasoning behind the lighting of the Law on Energy Security and Independence is quite simple: incandescent convert less than 10 percent of the energy pumped into them into light, losing the rest as heat. More efficient bulbs could save billions of dollars, reduce dependence on foreign oil and significantly reduce greenhouse gases.
However, the reaction of consumers resonates, not just CFLs are horrible, flickery, ugly and unreliable. Evolutionary biologists believe that human lighting preferences are the result of our trichromatic vision in non-primate-rare, which makes us especially suited for daylight and color vision primary. There is an anthropological component as well: for 400,000 years, mankind has been banishing darkness with fire. And Edison bulb is, in its essence a burning filament that casts the glow of a flame. Abandoning incandescent bulbs means abandoning fire as our primary source of light for the first time in human history.
As with all exhibitions, business and Lightfair cabins become progressively smaller and the further back patchwork. The front of the hall is the province of the three major industry-Philips, Osram Sylvania and General Electric, founded by Edison himself. Giants give way to a second plane occupied by the likes of Toshiba, Samsung, Leviton and Honeywell. Behind them, small business manufacturers such as LED lighting manufacturers and LED Display manufacturers of accessories, component vendors and Asia-fill the remaining space, to the wall. Here, within smelling distance of the hot dog stand, Sharenow chairs the switch position.
"What's what?" Asks Sharenow. Most people get it wrong, which is significant. When you select what they feel is the top light, that they are selecting the switch.
Although there are a number of 60 Watt LED Lightfair testing prototypes, few are available for side-by-side comparisons with incandescents. Most are sealed inside cabinets or exist only press releases or PowerPoint presentations. The bulbs are in the open switch: shell crystal clear faceted crystal with aluminum tips holding yellow-tinted LEDs shine through coolant to cast a warm glow salon-quality and draw only 13 watts to do it .
About 80 percent of all bulbs sold in the U.S. or equivalent is calculated at 60, 75 or 100 watts, but almost all LED launched so far has come in the range of 40-watt-equivalent, good for little beyond closets and crawl spaces. Brightest bulbs are too hot, too expensive (more than $ 50, although they can last for 20 years), or both. Change plans to start selling its 60-watt equivalent bulb this fall for about $ 30.
"Light is something that people have always needed," says Sharenow. "It is a light source people want."
It's the first day of Lightfair, the annual international trade all that glitters, dazzles, blinks or shines, 500 exhibitors and 24,000 visitors who hung row upon row of light after light.
The future of light is LED
by Dan Koeppel (44.8 MB. mp3)
Subscribe: Wired Features Podcast
This is the last before Lightfair new regulations governing lightbulb efficiency begin to take effect in the U.S. in January, and there is a real sense of history and urgency in the exhibition hall. Ready or not, the way we light our homes and offices is about to change, and the way technology is in this room somewhere.
If all goes to plan, the provisions of the Law on Energy Independence and Security 2007 effectively prohibit 100-watt incandescent bulbs from 2012. Bulbs will seventy five watts in 2013, followed by 60 - and 40-watt bulbs a year later. So the race to find a suitable replacement technology is coming to the last moment. The industry is betting on LED lighting as the way forward, and is virtually the only bulb technology on LED display: There is hardly a single incandescent or compact fluorescent sick to be seen. Only 200 thousand square meters of companies compete to fill their quota of billions in the world-standard plugs and betting on LEDs as the way to go.
There is an excellent reason LEDs have taken on the aura of inevitability: LEDs are semiconductors, and like all solid state technology, which are getting better and cheaper on a predictable curve. In 1999, a researcher named Roland Haitz, then head semiconductor R & D at Hewlett-Packard, co-author of an article that became the manifesto of the lighting industry. In tracing the historical prices of LEDs and projecting future Haitz estimated that the amount of light they produce has increased by a factor of 20 per decade, while the cost will be proportionately reduced by a factor of 10.
Haitz law has proved remarkably accurate. But the lighting industry still has big hurdles to clear before LEDs gain acceptance by consumers. Beyond the very real problems cooling technique, the costs, the color-light is not persistent public dislike of CFLs, which failed miserably in its intended role as a bulb of the future. That feeling has introduced a fuel Tea Party backlash against the new rules, and there have been attempts in Congress to roll back completely.
The reasoning behind the lighting of the Law on Energy Security and Independence is quite simple: incandescent convert less than 10 percent of the energy pumped into them into light, losing the rest as heat. More efficient bulbs could save billions of dollars, reduce dependence on foreign oil and significantly reduce greenhouse gases.
However, the reaction of consumers resonates, not just CFLs are horrible, flickery, ugly and unreliable. Evolutionary biologists believe that human lighting preferences are the result of our trichromatic vision in non-primate-rare, which makes us especially suited for daylight and color vision primary. There is an anthropological component as well: for 400,000 years, mankind has been banishing darkness with fire. And Edison bulb is, in its essence a burning filament that casts the glow of a flame. Abandoning incandescent bulbs means abandoning fire as our primary source of light for the first time in human history.
As with all exhibitions, business and Lightfair cabins become progressively smaller and the further back patchwork. The front of the hall is the province of the three major industry-Philips, Osram Sylvania and General Electric, founded by Edison himself. Giants give way to a second plane occupied by the likes of Toshiba, Samsung, Leviton and Honeywell. Behind them, small business manufacturers such as LED lighting manufacturers and LED Display manufacturers of accessories, component vendors and Asia-fill the remaining space, to the wall. Here, within smelling distance of the hot dog stand, Sharenow chairs the switch position.
"What's what?" Asks Sharenow. Most people get it wrong, which is significant. When you select what they feel is the top light, that they are selecting the switch.
Although there are a number of 60 Watt LED Lightfair testing prototypes, few are available for side-by-side comparisons with incandescents. Most are sealed inside cabinets or exist only press releases or PowerPoint presentations. The bulbs are in the open switch: shell crystal clear faceted crystal with aluminum tips holding yellow-tinted LEDs shine through coolant to cast a warm glow salon-quality and draw only 13 watts to do it .
About 80 percent of all bulbs sold in the U.S. or equivalent is calculated at 60, 75 or 100 watts, but almost all LED launched so far has come in the range of 40-watt-equivalent, good for little beyond closets and crawl spaces. Brightest bulbs are too hot, too expensive (more than $ 50, although they can last for 20 years), or both. Change plans to start selling its 60-watt equivalent bulb this fall for about $ 30.
"Light is something that people have always needed," says Sharenow. "It is a light source people want."
Monday, September 2, 2013
Hazle way to close for two months
A section of Hollywood Boulevard in Hazle Township closed for nearly two months from Wednesday to make improvements to the Airport Beltway project .
Mike Bernetski , the Department of Transportation construction manager for the Pennsylvania bypass project , said that the road is supposed to be closed from the ring road to the Fe Drive for 70 days , which would be until early November.
But Bernetski not think the road will be closed so long.
" We've done some of the work drain ," said Bernetski . "We're starting the containment (today) . Such work is included within 70 days, so I think that the road will be made before the 70 days are up. "
The teams have built a road connecting Fe Drive - where is the faith of the United Church of Christ - to connect with Moisey Drive, the road is a traffic signal in front of Walmart , and leads to wellness center Greater Hazleton Health Alliance.
Electronic variable message signs along the bypass road advise drivers will be closed on Wednesday .
" The rest of Hollywood Boulevard will remain open ," said Bernetski . "Companies continue to have access to the connector ring (road) we have built."
The Airport Beltway project involves widening of the 43 -year-old , the road to accommodate a turn lane , an additional lane on the ramp to State Route 93 , a new traffic signal at the intersection in Hazle Township Boulevard, and an update of the road and traffic signal near the Laurel mall .
" The third lane will be more or less go to the length of the road," said Bernetski . "This year , we made two box culverts , and have a lot of ways to do. 're Going to do the drainage work on the north side of the road this year , and on the south side of the road next year . us ' we've done a lot of drainage work on the south side . going to do some paving this year , but it will be the base or bonding layers . we are not going to make the final pavement until next year " .
Bernetski said crews built a "weave" for traffic to cross from the westbound lane of the highway. One lane in each direction has been established on the south side of the road this year .
"We tried to make it as easy as possible for people to use the road," said Bernetski .
From the Laurel Mall Route 93 , the road is already four lanes , but the access ramp to Route 93 to go north, or toward Interstate 81 , will change - the reason that the have shaving equipment down the edge of the Penn State University campus .
" From the mall to 93 will only resurfaced ," said Bernetski . "We are adding a second lane to the entrance ramp from Route 93 and the ramp to the ring to have a longer way of stacking . "
The project, which began in March , is scheduled for completion in November 2014 . The project was necessary because the number of fatal rear along two-lane road , as it was built in 1970. Many new businesses have been built along the road during its existence , including the Laurel Mall and Walmart.
Mike Bernetski , the Department of Transportation construction manager for the Pennsylvania bypass project , said that the road is supposed to be closed from the ring road to the Fe Drive for 70 days , which would be until early November.
But Bernetski not think the road will be closed so long.
" We've done some of the work drain ," said Bernetski . "We're starting the containment (today) . Such work is included within 70 days, so I think that the road will be made before the 70 days are up. "
The teams have built a road connecting Fe Drive - where is the faith of the United Church of Christ - to connect with Moisey Drive, the road is a traffic signal in front of Walmart , and leads to wellness center Greater Hazleton Health Alliance.
Electronic variable message signs along the bypass road advise drivers will be closed on Wednesday .
" The rest of Hollywood Boulevard will remain open ," said Bernetski . "Companies continue to have access to the connector ring (road) we have built."
The Airport Beltway project involves widening of the 43 -year-old , the road to accommodate a turn lane , an additional lane on the ramp to State Route 93 , a new traffic signal at the intersection in Hazle Township Boulevard, and an update of the road and traffic signal near the Laurel mall .
" The third lane will be more or less go to the length of the road," said Bernetski . "This year , we made two box culverts , and have a lot of ways to do. 're Going to do the drainage work on the north side of the road this year , and on the south side of the road next year . us ' we've done a lot of drainage work on the south side . going to do some paving this year , but it will be the base or bonding layers . we are not going to make the final pavement until next year " .
Bernetski said crews built a "weave" for traffic to cross from the westbound lane of the highway. One lane in each direction has been established on the south side of the road this year .
"We tried to make it as easy as possible for people to use the road," said Bernetski .
From the Laurel Mall Route 93 , the road is already four lanes , but the access ramp to Route 93 to go north, or toward Interstate 81 , will change - the reason that the have shaving equipment down the edge of the Penn State University campus .
" From the mall to 93 will only resurfaced ," said Bernetski . "We are adding a second lane to the entrance ramp from Route 93 and the ramp to the ring to have a longer way of stacking . "
The project, which began in March , is scheduled for completion in November 2014 . The project was necessary because the number of fatal rear along two-lane road , as it was built in 1970. Many new businesses have been built along the road during its existence , including the Laurel Mall and Walmart.
Von Housen new marker helps Rocklin High LED drive
When hosts Roseville High School Pleasant Grove High School in Elk Grove in football tonight, Roseville will operate its new LED football scoreboard, which is one of the biggest football scores high school in the country.
Players, coaches and spectators in this game and future games appear prominently on the scoreboard how it was possible that this purchase - Von Housen Automotive Group, which owns and operates Mercedes-Benz dealerships in the region.
Von Housen contributed about $ 70,000 to $ 80.000 score, a spokeswoman said. A 35 feet wide by 15 feet high, the label is the biggest high school football scoreboard in the region, according to a press release .. The LED display is capable of slow motion views and feeds live game.
But Von Housen, which operates one of its dealerships in Roseville, gave a gift that keeps on giving, or more specifically, to generate additional money for Rocklin High. The school can sell advertising on the scoreboard to business. The school expects to generate significant revenues for their technology and sports programs.
"The ultimate goal is to integrate students run the entire marker operation, operation of physical marker for the identification of potential advertisers," said a press release.
Von Housen has focused its philanthropy in education during the past five years, given the state of education in California, said a spokeswoman
Players, coaches and spectators in this game and future games appear prominently on the scoreboard how it was possible that this purchase - Von Housen Automotive Group, which owns and operates Mercedes-Benz dealerships in the region.
Von Housen contributed about $ 70,000 to $ 80.000 score, a spokeswoman said. A 35 feet wide by 15 feet high, the label is the biggest high school football scoreboard in the region, according to a press release .. The LED display is capable of slow motion views and feeds live game.
But Von Housen, which operates one of its dealerships in Roseville, gave a gift that keeps on giving, or more specifically, to generate additional money for Rocklin High. The school can sell advertising on the scoreboard to business. The school expects to generate significant revenues for their technology and sports programs.
"The ultimate goal is to integrate students run the entire marker operation, operation of physical marker for the identification of potential advertisers," said a press release.
Von Housen has focused its philanthropy in education during the past five years, given the state of education in California, said a spokeswoman
Thursday, August 29, 2013
Innovative Design Wireless Ronin Ticker displays on the screen 60 meters wide LED in Major Retail Financial Institution in Midtown Manhattan
NEW YORK, NY, Aug 29, 2013 (Marketwired via COMTEX) - Wireless Ronin Technologies, Inc. (OTCQB: RNIN), a provider of marketing technology solutions leader, has deployed a custom-designed LED screen, 60 meters wide along with its channel partner, Thomson Reuters, in the lobby of a bank in Midtown Manhattan major retailer.
Instead of the typical mono-color, teletype from right to left, Wireless Ronin designed and developed a digital signage solution of one-of-a-kind location for high traffic national financial institution. The LED display has color, multi-directional full presentation including share prices and company logos for the first 40 NASDAQ and NYSE stocks, as well as major news and content to promote the brand of the financial institution . The content is fully integrated with the data solutions from Thomson Reuters Knowledge Direct with market data and news feeds updated continuously throughout the day.
"This financial services retailer sought a digital solution to differentiate from the competition and engage both existing customers in the branch as well as prospective clients with him," said Scott, Koller, president and CEO of Wireless Ronin. "This customized solution demonstrates the creativity of our engineering team to design a solution content that meets the objectives of our clients. Based on the positive feedback from this initial deployment, the customer plans to install the solution ticker in additional locations, including a branch San Francisco next month. "
About Wireless Ronin Technologies, Inc. Wireless Ronin Technologies, Inc. (WRT) (www.wirelessronin.com) is a marketing technology company pioneering. WRT combines digital interactive media - signage, kiosks, mobile, web and social media - to create 360-degree solutions for companies is "Communicating at the speed of life (R)" to deliver the right content in the right place at the right time. Turnkey Approach WRT includes strategic consulting, creative development, installation, hosting, training and support. Since the release of their content management platform based on cloud RoninCast (R) in 2003, WRT has become the leading provider of digital marketing for large scale deployments, automotive retail food service and public places. The company is headquartered in Minneapolis, Minnesota, its common stock trades on the OTCQB as "RNIN."
Forward Looking Statements This press release contains certain statements of future expectations as defined in Litigation Reform Act of 1995 Private Securities future. These forward looking statements reflect management's expectations regarding continued performance improvement, the estimated cost savings associated with restructuring and other matters, and are based on currently available data, however, actual results are subject to future risks and uncertainties that could materially affect actual results. The risks and uncertainties that could affect performance include, but are not limited to, the following: the adequacy of funds for future operations, estimates of future expenses, revenue and profitability, the rate at which the company completes installations and recognizes revenue trends affecting financial condition and operating results, the ability to convert proposals into customer orders, the ability of customers to pay for products and services, and the impact on revenue recognition of changing customer needs, customer cancellations, availability and terms of additional capital, the ability to develop new products, dependence on key suppliers, manufacturers and strategic partners, industry trends and the competitive environment, the impact of the financial situation of the company to the customer and potential customer relationships, and the impact of the loss of one or more senior executives or failing to attract additional key personnel. These and other risk factors are discussed in detail in the warnings set out in the Company's Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 1, 2013
Instead of the typical mono-color, teletype from right to left, Wireless Ronin designed and developed a digital signage solution of one-of-a-kind location for high traffic national financial institution. The LED display has color, multi-directional full presentation including share prices and company logos for the first 40 NASDAQ and NYSE stocks, as well as major news and content to promote the brand of the financial institution . The content is fully integrated with the data solutions from Thomson Reuters Knowledge Direct with market data and news feeds updated continuously throughout the day.
"This financial services retailer sought a digital solution to differentiate from the competition and engage both existing customers in the branch as well as prospective clients with him," said Scott, Koller, president and CEO of Wireless Ronin. "This customized solution demonstrates the creativity of our engineering team to design a solution content that meets the objectives of our clients. Based on the positive feedback from this initial deployment, the customer plans to install the solution ticker in additional locations, including a branch San Francisco next month. "
About Wireless Ronin Technologies, Inc. Wireless Ronin Technologies, Inc. (WRT) (www.wirelessronin.com) is a marketing technology company pioneering. WRT combines digital interactive media - signage, kiosks, mobile, web and social media - to create 360-degree solutions for companies is "Communicating at the speed of life (R)" to deliver the right content in the right place at the right time. Turnkey Approach WRT includes strategic consulting, creative development, installation, hosting, training and support. Since the release of their content management platform based on cloud RoninCast (R) in 2003, WRT has become the leading provider of digital marketing for large scale deployments, automotive retail food service and public places. The company is headquartered in Minneapolis, Minnesota, its common stock trades on the OTCQB as "RNIN."
Forward Looking Statements This press release contains certain statements of future expectations as defined in Litigation Reform Act of 1995 Private Securities future. These forward looking statements reflect management's expectations regarding continued performance improvement, the estimated cost savings associated with restructuring and other matters, and are based on currently available data, however, actual results are subject to future risks and uncertainties that could materially affect actual results. The risks and uncertainties that could affect performance include, but are not limited to, the following: the adequacy of funds for future operations, estimates of future expenses, revenue and profitability, the rate at which the company completes installations and recognizes revenue trends affecting financial condition and operating results, the ability to convert proposals into customer orders, the ability of customers to pay for products and services, and the impact on revenue recognition of changing customer needs, customer cancellations, availability and terms of additional capital, the ability to develop new products, dependence on key suppliers, manufacturers and strategic partners, industry trends and the competitive environment, the impact of the financial situation of the company to the customer and potential customer relationships, and the impact of the loss of one or more senior executives or failing to attract additional key personnel. These and other risk factors are discussed in detail in the warnings set out in the Company's Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 1, 2013
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