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Kamis, 23 Januari 2014

Adjustable Twinkle Light Switch For 200 Watts Lamp

Twinkle light switch which is also often called the flasher, usually use fluorescent lamp starter. But fluorescent starter has irregular twinkle and often do not twinkle at all.

Flasher discussed here can be used with 220 VAC and lamp power ranging from 5 watts to 200 watts. As we can see in the above video, the flasher is being tested with 2 (two) 100-watt lamps, so the total power is 200 watts or equal to 40 of 5 watt bulbs commonly used as decorative lighting.

This flasher is a very efficient switch and consume power less than 0.2 watts for itself to operate.

Wiring connection as below schematic:

The wiring connection is very simple. The blue wire from the flasher is connected to the twinkle bulb (B), another wire from the bulb is connected to the power grid. Red wire from the flasher is connected to a fuse (F) with a maximum size of 1 ampere, and the fuse is connected to the power grid. This way the flasher is protected from large currents directly from the grid, and ensure the best performance.

Twinkling light can be adjusted. This flasher is suitable for twinkling lights for celebration, party, Christmas, New Year, decorative lighting for store, restaurant, entertainment, and others.

For comparison, the following video using fluorescent light starter as a flasher.

Photo below shows a twinkle light switch that is packaged in a box, for the circuit schematic can be read in the article: Adjustable Twinkle Light 200 Watts 220 VAC Schematic.

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Senin, 28 Oktober 2013

Red Bull Rookies up for Estoril

The bwin Grande Prémio de Portugal this weekend sees the third and fourth races of the Red Bull MotoGP Rookies Cup take place at the Estoril circuit, and the participants will head to the track confident in the circuit knowledge they gained in a three-day pre-season test back in March.

Bad luck has struck for two of the Rookies however, who must sit out the Estoril races. Cup points leader Philipp Oettl will be absent due to a broken collarbone, which the youngster sustained testing his German championship bike on April 9th. Frenchman Florian Alt will also not be present, as he continues to recover from a finger injury picked up at the opening weekend in Jerez. Xavier Pinsach and Javier Orellana, who both injured shoulders at Jerez, are due to be fit for Estoril.

In Oettl’s absence Arthur Sissis, Aaron Espana and Brad Binder, who trail him in the table, will aim to cut down the German’s advantage. Sissis won race two at Jerez and was fastest at the Portugal test in both wet and dry conditions, and currently trails Oettl by ten points.

With 44 TV broadcasters around the world showing the race action there is ample opportunity to follow the young heroes and for those not covered by the spread of live TV the live race feed can always be seen on http://oto-trendz.blogspot.com/, where the latest news and information can also be found.

There will be three practice sessions for the Rookies on Friday, with first race scheduled for Saturday at 16.30 CET and race two for Sunday at 16.00 CET.

sumberhttp://www.motogp.com

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Selasa, 22 Oktober 2013

Chrome for Android Update

(Cross posted on the Google Chrome Blog)

Since we launched Chrome for Android Beta in February, we’ve been listening closely to all of your feedback (thank you!). It’s great to hear how so many of you love having the Chrome experience on your Android 4.0 phone or tablet.

With today’s update, Chrome for Android Beta is now available in 31 more languages and in all countries where Google Play is available. We’ve also added many much-requested features, including:

You can now request the desktop version of a website, in case you would rather not view the mobile version.
You can now add bookmarks as shortcuts on your home screen, so you can get to your favorite sites faster.
Choose your favorite apps to handle links opened in Chrome.
Have a proxy setup for Wi-Fi access? You can now use Chrome with the system proxy configured in Android settings.

If you build websites, you may want to take note of a change in the User-Agent specification for Chrome for Android.

If you haven’t already, you can install Chrome for Android Beta from Google Play on your Android 4.0 (Ice Cream Sandwich) phone or tablet. As were still in Beta, we look forward to your feedback so we can continue to improve Chrome for Android.

Posted by
Dan Alcantara and Oli Lan, Software Engineers on Chrome for Android

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