By extending input voltage operation from 60 V down to as low as 5 V, the ZXLD1371 LED driver controller from Diodes Incorporated has been designed to handle as broad a range of applications as possible, including those subject to the greatest variance in input voltage, such as automotive lighting and 12 V a.c. powered systems.
The IC’s ability to control an external driver FET in buck, boost and buck-boost driver topologies makes it an all-in-one solution, capable of driving as many as 20 high-current LEDs in boost mode with a high level of accuracy. Employing patent pending control loops and single resistor high-side current sensing, it will deliver a typical output current tolerance of 1%, helping to produce improvements in brightness control and lamp luminance matching.
The LED driver controller offers dimming over a wide dynamic range, through separate 20:1 DC dimming and 1000:1 PWM dimming options, resulting in highly accurate light control, particularly at lower brightness levels. To further improve the reliability of LED lamp systems, the ZXLD1371 provides thermal management of LEDs via a dedicated external thermistor input which, combined with fault diagnostic outputs reporting LED load and driver status, helps to increase LED light longevity.
Switching at up to 1 MHz, the TSSOP-16EP packaged LED driver controller will also help minimise circuit size by reducing the value of the external inductor.
2012年4月18日星期三
2012年4月17日星期二
Disney's Animal Kingdom
It's a small world after all at Disney's Animal Kingdom, where 1,700 animals from 250 species and some animatronic dinosaurs inhabit a 500-acre theme park. Animal Kingdom is made up of seven separate themed areas: Oasis, Discovery Island? area, Camp Minnie-Mickey, Africa, Rafiki's Planet Watch? area, Asia, and Dinoland U.S.A.? area. Disney's Animal Kingdom has the distinction of being the world's largest animal-themed park. Because most tourists have limited time and resources, several tips can help Disney guests optimize their Animal Kingdom visit.
Lodge
Lodge on Disney property. Guests who stay at one of the Walt Disney World Resort's on-site hotels enjoy Extended Theme Park hours, also known as Extra Magic Hours. One of Disney World's four theme parks opens one hour early or stays operates up to three hours after closing time exclusively for Disney hotel guests. On days when Animal Kingdom offers Extra Magic Hours, park guests have more time to enjoy all that the Magic Kingdom has to offer. Guests lodging on Disney property can also take advantage of complimentary Disney transportation, which includes buses, monorail and boats.
Animal Kingdom Lodge
Stay at the Animal Kingdom Lodge. It is nestled upon the 43-acre wildlife preserve offering guests the opportunity to fully immerse themselves in the Animal Kingdom experience and enjoy the scenery before and after the park opens. Animal Kingdom Lodge is architecturally African, featuring thatched ceilings, large beams, hand-carved golden-tone furnishings, authentic African artifacts and a vast mud fireplace in the main lobby. The lodge's grounds are graced with thousands of indigenous African shrubs and grasses, including the copperpod, Africa's most recognized canopy tree. Perhaps best of all, guests can visit the lodge's Arusha Rock, an elevated rock platform, allows guests a close-up view of the landscape with its wildlife and vegetation. Guests with a taste for fine dining can dine at one of the lodge's two elegant restaurants, Jiko: The Cooking Place and Boma: Flavors of Africa.
Fastpass System
Go to the kiosks to get ride reservations using Disney's Fastpass reservation system for dinosaur model, Expedition Everest - Legend of the Forbidden Mountain, Kilimanjaro Safaris, Kali River Rapids and Primeval Whirl. These rides, especially Dinosaur and Expedition Everest, are the most popular at Animal Kingdom and get the longest lines. The Fastpass system provides a reservation to guests to return to the selected ride and have a much shorter wait on line.
Arrive Early
Some visitors say that Disney's Kilimanjaro Safari is comparable to real African safaris.
Get to the park as early as possible and ride Kilimanjaro Safaris because the animals are most active in the morning and tend to nap in the afternoon as the temperature rises.
Ride
Ride Expedition Everest, Disney's newest thrill ride at Animal Kingdom. It simulates a ride through Mount Everest and features the legendary Yeti.
Travel
Disney guests can come face to face with animatronic dinosaurs at Animal Kingdom.
Travel back in time on Dinosaur, a thrill ride which features time travel and animatronic dinosaurs.
Watch
Watch Festival of the Lion King, a musical based on the Disney film. It features comedy and is designed to appeal to the entire family.
Lodge
Lodge on Disney property. Guests who stay at one of the Walt Disney World Resort's on-site hotels enjoy Extended Theme Park hours, also known as Extra Magic Hours. One of Disney World's four theme parks opens one hour early or stays operates up to three hours after closing time exclusively for Disney hotel guests. On days when Animal Kingdom offers Extra Magic Hours, park guests have more time to enjoy all that the Magic Kingdom has to offer. Guests lodging on Disney property can also take advantage of complimentary Disney transportation, which includes buses, monorail and boats.
Animal Kingdom Lodge
Stay at the Animal Kingdom Lodge. It is nestled upon the 43-acre wildlife preserve offering guests the opportunity to fully immerse themselves in the Animal Kingdom experience and enjoy the scenery before and after the park opens. Animal Kingdom Lodge is architecturally African, featuring thatched ceilings, large beams, hand-carved golden-tone furnishings, authentic African artifacts and a vast mud fireplace in the main lobby. The lodge's grounds are graced with thousands of indigenous African shrubs and grasses, including the copperpod, Africa's most recognized canopy tree. Perhaps best of all, guests can visit the lodge's Arusha Rock, an elevated rock platform, allows guests a close-up view of the landscape with its wildlife and vegetation. Guests with a taste for fine dining can dine at one of the lodge's two elegant restaurants, Jiko: The Cooking Place and Boma: Flavors of Africa.
Fastpass System
Go to the kiosks to get ride reservations using Disney's Fastpass reservation system for dinosaur model, Expedition Everest - Legend of the Forbidden Mountain, Kilimanjaro Safaris, Kali River Rapids and Primeval Whirl. These rides, especially Dinosaur and Expedition Everest, are the most popular at Animal Kingdom and get the longest lines. The Fastpass system provides a reservation to guests to return to the selected ride and have a much shorter wait on line.
Arrive Early
Some visitors say that Disney's Kilimanjaro Safari is comparable to real African safaris.
Get to the park as early as possible and ride Kilimanjaro Safaris because the animals are most active in the morning and tend to nap in the afternoon as the temperature rises.
Ride
Ride Expedition Everest, Disney's newest thrill ride at Animal Kingdom. It simulates a ride through Mount Everest and features the legendary Yeti.
Travel
Disney guests can come face to face with animatronic dinosaurs at Animal Kingdom.
Travel back in time on Dinosaur, a thrill ride which features time travel and animatronic dinosaurs.
Watch
Watch Festival of the Lion King, a musical based on the Disney film. It features comedy and is designed to appeal to the entire family.
Giant on Monday Introduced a Range of Three New Carbon Fiber
WESTLAKE VILLAGE, CA (BRAIN) Monday April 16 2012 9:10 AM MT—Building on its Anthem X dual-suspension 29er, Giant on Monday introduced a range of three new carbon fiber 29ers.
Giant also brought out its first-ever line of full-suspension 29ers made specifically for women, and a new composite 29er wheelset.
The 4-inch-travel Anthem bikes, ranging in retail price from $3,300 to $8,900, are designed with a carbon fiber front end and aluminum rear swingarm, which allowed engineers to drop 185 grams from the original Anthem 29er.
Incorporating alloy also keeps prices in reach for the majority of Giant’s consumers, said Kevin Dana, Giant’s global off-road category manager.
“At the end of the day, there’s nothing more frustrating for a category manager than developing a bike that isn’t attainable for consumers, a bike they can’t get out and ride on,” Dana told a roomful of journalists gathered at Giant’s pre-Sea Otter media launch in Westlake Village, California, near the company’s U.S. headquarters.
At the premium end, the Anthem X 29 0 is spec’d with SRAM’s XX drivetrain, a RockShox SID 29 RCT3 fork and SRAM Rise carbon wheels and weighs 22 pounds. The Anthem X 29er 1 retails for $4,650 and uses SRAM X0 and X9 components, Avid Elixir 9 brakes and Giant’s PXC 29 wheelset. The 29er 2 is spec’d with X5 and X7 components and is priced at $3,300.
The new composite bikes complement the original Anthem X, which has been Giant’s most successful dual-suspension bike ever, Dana said.
The Anthem X 29W is Giant’s first dual-suspension 29er targeted specifically for women. The aluminum frame, 4-inch-travel bikes are designed with women’s-specific geometry including a shorter toptube, adjusted seat and head angles, shorter crank length and women’s-specific saddle.
Its lowest gear ratio is 22/36.
“Let me tell you, you can ride up walls with this thing; it’s awesome,” said Abby Santurbane, LIV/Giant product developer. The X7 version runs $2,950 and the X4 model is $1,850.
The 2013 model year street bikes are already shipping and should be available in stores soon.
Giant also brought out its first-ever line of full-suspension 29ers made specifically for women, and a new composite 29er wheelset.
The 4-inch-travel Anthem bikes, ranging in retail price from $3,300 to $8,900, are designed with a carbon fiber front end and aluminum rear swingarm, which allowed engineers to drop 185 grams from the original Anthem 29er.
Incorporating alloy also keeps prices in reach for the majority of Giant’s consumers, said Kevin Dana, Giant’s global off-road category manager.
“At the end of the day, there’s nothing more frustrating for a category manager than developing a bike that isn’t attainable for consumers, a bike they can’t get out and ride on,” Dana told a roomful of journalists gathered at Giant’s pre-Sea Otter media launch in Westlake Village, California, near the company’s U.S. headquarters.
At the premium end, the Anthem X 29 0 is spec’d with SRAM’s XX drivetrain, a RockShox SID 29 RCT3 fork and SRAM Rise carbon wheels and weighs 22 pounds. The Anthem X 29er 1 retails for $4,650 and uses SRAM X0 and X9 components, Avid Elixir 9 brakes and Giant’s PXC 29 wheelset. The 29er 2 is spec’d with X5 and X7 components and is priced at $3,300.
The new composite bikes complement the original Anthem X, which has been Giant’s most successful dual-suspension bike ever, Dana said.
The Anthem X 29W is Giant’s first dual-suspension 29er targeted specifically for women. The aluminum frame, 4-inch-travel bikes are designed with women’s-specific geometry including a shorter toptube, adjusted seat and head angles, shorter crank length and women’s-specific saddle.
Its lowest gear ratio is 22/36.
“Let me tell you, you can ride up walls with this thing; it’s awesome,” said Abby Santurbane, LIV/Giant product developer. The X7 version runs $2,950 and the X4 model is $1,850.
The 2013 model year street bikes are already shipping and should be available in stores soon.
The HP Officejet Pro 8100
Printing speed
The printer offers Maximum output speed. HP Officejet Pro 8100 has the ability print 20 black pages and 16 color pages per minute.
Wi-Fi connectivity
Since the printer features Apple’s AirPrint, the users can send the files and documents from any mobile device to print them. The users can also use a mobile app to print. Besides Apple’s AirPrint, the printer also features Ethernet. Those users who don’t want to connect wirelessly have the option either to share the printer over a network via Ethernet or use the printer as a standalone printer connected to their computer via USB 2.0.
250-sheet capacity input tray and intuitive graphic interface
The Officejet Pro 8100’ 250-sheet capacity input tray enables the users for automatic and two-sided printing. Furthermore, the printer’s intuitive graphic interface allows the users to adjust machine’s settings.
Ink cartridges
The printer uses four ink cartridges to work. It offers two options with the four-cartridge ink system. The two options consist on standard capacity cartridges and high-capacity cartridges.
· By using four standard capacity cartridges, you can print 1,000 black pages and 700 color pages.
· On the other, four high-capacity cartridges yield up to 2300 pages and 1500 pages for black and color respectively.
Final word
If you are looking for a single-function inkjet that offer the speed and quality of a laser printer at the cost of an inkjet printer, HP Officejet Pro 8100 is an ideal option for you.
2012年4月9日星期一
How to Use a Coin Machine
A 16-ounce container of coins can hold more than $28. A 1-gallon container of coins can hold more than $200. Converting these coins into paper money is much easier than trying to use them as coins. Using a Coin Machine can make the process of counting coins much easier. Some sorters are home electronic devices and others are commercial devices that charge a percent of the coins' value for converting the coins to paper money.
1
Sift through your coins to ensure that they are all of the same currency. The occasional coin from a different country can slip into circulation since most people only give coins a cursory glance. Most machines sort by weights specific to a set of currency, so running foreign coins through a sorter that isn't equipped to automatically sift them out, can cause problems.
2
Pile the coins into the sorter. Some machines can take bulk amounts of coins and sort many at a time, and others will require you to enter the coins one at a time. If your coin sorter is your own personal device, it is designed to sift the coins by type. It will have a separate reservoir for each category (quarters, dimes, nickels and pennies) into which the coins will be sorted. Once sorted into stacks, transfer the coins into coin wrappers. If it is a commercial machine, it will simply collect the coins and you won't have to wrap them.
3
Collect the value of the coins. Commercial machines may dispense cash or a cash voucher minus a fee for using the machine. The machine may allow you to forgo the fee if you choose to take the coins' value in gift certificates for various stores and online merchants. If you used a personal machine, you will need to take the wrapped coins to your bank for deposit into your account, or to exchange them for paper money.
1
Sift through your coins to ensure that they are all of the same currency. The occasional coin from a different country can slip into circulation since most people only give coins a cursory glance. Most machines sort by weights specific to a set of currency, so running foreign coins through a sorter that isn't equipped to automatically sift them out, can cause problems.
2
Pile the coins into the sorter. Some machines can take bulk amounts of coins and sort many at a time, and others will require you to enter the coins one at a time. If your coin sorter is your own personal device, it is designed to sift the coins by type. It will have a separate reservoir for each category (quarters, dimes, nickels and pennies) into which the coins will be sorted. Once sorted into stacks, transfer the coins into coin wrappers. If it is a commercial machine, it will simply collect the coins and you won't have to wrap them.
3
Collect the value of the coins. Commercial machines may dispense cash or a cash voucher minus a fee for using the machine. The machine may allow you to forgo the fee if you choose to take the coins' value in gift certificates for various stores and online merchants. If you used a personal machine, you will need to take the wrapped coins to your bank for deposit into your account, or to exchange them for paper money.
Ink cartridges are typically more expensive than consumers might expect
Ink cartridges are typically more expensive than consumers might expect – sometimes a substantial fraction of the cost of the printer. To save money, many people use compatible ink cartridges from a vendor other than the printer manufacturer. The high cost of cartridges has also provided an incentive for counterfeiters to supply cartridges falsely claiming to be made by the original manufacturer.[citation needed] Another alternative involves modifications of an original cartridge allowing use of continuous ink systems with external ink tanks.[citation needed] Others use aftermarket inks, refilling their own ink cartridges using a kit that includes bulk ink.
Some printer manufacturers set up their cartridges to interact with the printer, preventing operation when the ink level is low, or when the cartridge has been refilled. One researcher with the magazine "Which?" over-rode such an interlocked system and found that in one case he could print up to 38% more good quality pages, after the chip stated that the cartridge was empty. In the United Kingdom, in 2003, the cost of ink has been the subject of an Office of Fair Trading investigation, as Which? magazine has accused manufacturers of a lack of transparency about the price of ink and called for an industry standard for measuring ink cartridge performance. Which? stated that color HP cartridges cost over seven times more per milliliter than 1985 Dom Perignon.
It can sometimes be cheaper to buy a new printer than to replace the set of ink cartridges supplied with the printer. The major printer manufacturers ? Hewlett Packard, Lexmark, Dell, Canon, Epson and Brother ? use a "razor and blades" business model, often breaking even or losing money selling printers while expecting to make a profit by selling cartridges over the life of the printer. Since much of the printer manufacturers' profits are from ink and toner cartridge sales, some of these companies have taken various actions against aftermarket cartridges.
Some printer manufacturers set up their cartridges to interact with the printer, preventing operation when the ink level is low, or when the cartridge has been refilled. One researcher with the magazine "Which?" over-rode such an interlocked system and found that in one case he could print up to 38% more good quality pages, after the chip stated that the cartridge was empty. In the United Kingdom, in 2003, the cost of ink has been the subject of an Office of Fair Trading investigation, as Which? magazine has accused manufacturers of a lack of transparency about the price of ink and called for an industry standard for measuring ink cartridge performance. Which? stated that color HP cartridges cost over seven times more per milliliter than 1985 Dom Perignon.
It can sometimes be cheaper to buy a new printer than to replace the set of ink cartridges supplied with the printer. The major printer manufacturers ? Hewlett Packard, Lexmark, Dell, Canon, Epson and Brother ? use a "razor and blades" business model, often breaking even or losing money selling printers while expecting to make a profit by selling cartridges over the life of the printer. Since much of the printer manufacturers' profits are from ink and toner cartridge sales, some of these companies have taken various actions against aftermarket cartridges.
Ink Cartridge Information
An ink cartridge or inkjet cartridge is a replaceable component of an inkjet printer that contains the ink (and sometimes the print head itself) that is deposited onto paper during printing.
Each ink cartridge contains one or more partitioned ink reservoirs; certain manufacturers also add electronic contacts and a chip that communicates with the printer.
Some cartridges contain ink specially formulated for printing photographs.
All printer suppliers produce their own type of ink cartridges. Cartridges for different printers may be incompatible — either physically or electrically.
Some cartridges have incorporated the printer's head (examples include HP, Dell, and Lexmark). The precision parts required generally make the cartridges more expensive, but the printers are cheaper since they don't include the precision print head. Other cartridges don't include the print head and so can cost less, though the printers tend to be somewhat more expensive (Epson is an example).
Each ink cartridge contains one or more partitioned ink reservoirs; certain manufacturers also add electronic contacts and a chip that communicates with the printer.
Variants
Typically, two separate cartridges are inserted into a printer: one containing black ink and one with each of the three primary colors. Alternatively, each primary color may have a dedicated cartridge.Some cartridges contain ink specially formulated for printing photographs.
All printer suppliers produce their own type of ink cartridges. Cartridges for different printers may be incompatible — either physically or electrically.
Some cartridges have incorporated the printer's head (examples include HP, Dell, and Lexmark). The precision parts required generally make the cartridges more expensive, but the printers are cheaper since they don't include the precision print head. Other cartridges don't include the print head and so can cost less, though the printers tend to be somewhat more expensive (Epson is an example).
Types of Glass Solar Panels
Solar panels come in many forms and are made from multiple components. The glass components of solar collectors vary in form and function. These factors depend on the panel's intended use, whether it is for heating or photovoltaic solar power. In addition to conventional flat glass solar panels, panels can be made from glass tubes and transparent, window-like glass panels that connect to multiple small solar cells.
Silicate Glass and Silicon Nitride
Silicate glass is useful in the construction of solar panels because it does not reflect solar rays. When placed over silicon nitride, the glass absorbs and traps solar energy in a process similar to the greenhouse effect, maximizing the energy that acts on the silicon nitride panels. Glass is used in this manner to construct what are traditionally thought of as solar panels, which are large arrays of smaller solar collectors with visible metallic surfaces.
Solar Concentrators
A solar concentrator, or solar panel glass, is a type of solar glass pane developed at MIT that boasts an increased efficiency over traditional solar panels of up to 100 percent. This glass is infused with special dyes that absorb light, which is then pushed to the edges of the pane and harnessed by small solar cells there. Solar panel glass is currently used most often in office buildings and other structures with large numbers of windows, where the glass and collectors can be installed to utilize the surfaces of the building as vast solar arrays.
Evacuated Solar Tubes
Evacuated solar tubes differ from other types of solar panels primarily in their shape. Glass cylinders are used instead of flat panels to provide a full 360-degree angle of exposure to sunlight. These long tubes are placed parallel to each other in a long series, creating a plane of evenly spaced cylinders. This plane can then be mounted in an area of optimal exposure to sunlight. The solar tubes are connected at their tips to additional components that transfer heated fluids (such as water) from the tubes to the heating system of a building.
Silicate Glass and Silicon Nitride
Silicate glass is useful in the construction of solar panels because it does not reflect solar rays. When placed over silicon nitride, the glass absorbs and traps solar energy in a process similar to the greenhouse effect, maximizing the energy that acts on the silicon nitride panels. Glass is used in this manner to construct what are traditionally thought of as solar panels, which are large arrays of smaller solar collectors with visible metallic surfaces.
Solar Concentrators
A solar concentrator, or solar panel glass, is a type of solar glass pane developed at MIT that boasts an increased efficiency over traditional solar panels of up to 100 percent. This glass is infused with special dyes that absorb light, which is then pushed to the edges of the pane and harnessed by small solar cells there. Solar panel glass is currently used most often in office buildings and other structures with large numbers of windows, where the glass and collectors can be installed to utilize the surfaces of the building as vast solar arrays.
Evacuated Solar Tubes
Evacuated solar tubes differ from other types of solar panels primarily in their shape. Glass cylinders are used instead of flat panels to provide a full 360-degree angle of exposure to sunlight. These long tubes are placed parallel to each other in a long series, creating a plane of evenly spaced cylinders. This plane can then be mounted in an area of optimal exposure to sunlight. The solar tubes are connected at their tips to additional components that transfer heated fluids (such as water) from the tubes to the heating system of a building.
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