Showing posts with label LED-Lighting. Show all posts
Showing posts with label LED-Lighting. Show all posts

Saturday, May 02, 2015

The Success of the LED Lamp

The White LED Lamp is a Success today, more and more firms are manufacturing them. Millions are using it and is moving forward taking over the slots once occupied by CFL Lamps.

Still Filament and other Lamps are in use, even i like it much. CFL reliability and quality has improved. Then the LED Lighting has far too many Advantages and will be the Default Lighting Product of the future. It can easily adapt to the 24V Low voltage Standard, with Solar Energy Interface too.

The Insides of a LED Bulb

The AC to DC converter can be designed in various ways. The SMPS, the CFL Lamp Driver and this Mains Bulb LED driver all belong to the same Electronic Species.

First the 230V/110V at 50Hz/60Hz mains voltage is converted to DC with a diode bridge and filter cap. Not to forget protection and EMI filter circuits made of passive components.

Then it is an Oscillator that switches at High-Frequency, chops the 200V or 300V DC, say around 200 KHz. Then this AC is Stepped-Down with a High-Frequency Ferrite Transformer. Rectify the AC and use it to drive lamps with the current limit controls. The reliability of power devices and the Isolation in the Small Ferrite Transformer determine the life and safety of the bulb.

The Insides of a LED Bulb

White LED Lighting Lamps - 2011

We moved from Warm, Soothing and Healthy Edison Filament Lamps to CFL Lamps which are Energy Efficient, Bright but harsh on the Sensitive Eyes.

Energy Efficiency is of paramount importance for this age. Then, the light should be healthy for the eyes too. Eyes are very precious too.

That is the reason we need to Switch to LED lighting. It consumes low power, more reliable than CFL and gives Excellent and Safe Lighting.

LED lighting is expensive, as the Technology is slowly gaining acceptance. Please also bear in mind that low quality and unreliable LED products will also be in the market. In time, things will get seasoned and affordable quality products will be standard in all stores.

You can Contribute by trying them out and experimenting with its applications in home, office, vehicles and helper robots. Only those that design lamps that withstand Surges, Brown-outs, Lightning Strikes, Spikes will Shine just like the Lamp above



"Look i even got into an LED Lamp to emphasize the Importance of LED Lighting"

Tuesday, March 18, 2014

LED Lighting - The Future is Here

LED Lighting is more important than you think it is. Start Using Alternative Energy, like Wind Power and Solar, Tidal and even Magmatic.

LED Lighting at Wikipedia

On September 24, 2009 the DOE announced that Philips Lighting North America was the first to submit lamps in the category to replace the standard 60 W A-19 "Edison screw fixture" light bulb, with a design based on their earlier "EnduraLED" consumer product.

LED Lighting - The Future is Here

On August 3, 2011, DOE awarded the prize in the 60 W replacement category to Philips bulb after 18 months of extensive testing. The 10-W, 900-lumen Philips bulb was made available to consumers in April 2012.

The same day, CREE demonstrated a prototype lamp producing 1330 lumens with a mere 8.7 W of input power. While the CREE lamp has not undergone DOE reliability testing and no commercial release date was promised, it is an indication that the "21st Century Lamp" performance levels may soon be within reach of commercial products.

Highly efficient LED Bulb Driver - Infineon

The highly efficient dimmable LED driver system utilizing ICL8001G sets a new Benchmark with respect to integration, performance, features and total system cost. ICL8001G employs quasi-resonant operation modes with integrated power factor control for off-line residential LED lighting applications in particular 40W / 60W / 100W incandescent bulb replacements.

Highly efficient LED Bulb Driver - Infineon

Infineon ICL8001G - Bulb Driver

The EVAL-LED-ICL8001G-Bulb02 demonstrates the single-stage flyback and PFC controller ICL8001G in an LED  Bulb application. Its quasiresonant operation mode, primary side control, integrated PFC and phase-cut dimming  control makes it the best in class system solution for dimmable LED bulbs.