CHATLIT

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CHATLIT

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  • 05.14.2013
  • Intelligent LEDs will dramatically improve nighttime driving
  • One needs to be clear about standards of glare limits from a head lamp source when in dipped and hi beam conditions. Also how sensitive the sensors will be to difference in band of intensities which cause the glare. Any body can guide on such standards.
  • 04.06.2013
  • Ensure long lifetimes from electrolytic capacitors: A case study in LED light bulbs
  • History is of great help. We have seen this in India where several thousand versions of Integral Plug In CFLs were made without any consideration for Electrolytic capacitors leading to large scale failures. Lot of users in rural areas switched back to Incandescent bulbs. Same is happening with LED integral with Power supplies. The answer lies in quality Power supplies and separate LED modules without extraordinary constraint on space. One of the best articles I have come across on EDN
  • 04.06.2013
  • Ensure long lifetimes from electrolytic capacitors: A case study in LED light bulbs
  • History is of great help. We have seen this in India where several thousand versions were made without any consideration for Electrolytic capacitors leading to large scale failures. Lot of users in rural areas switched back to Incandescent bulbs. Same is happening with LED integral with Power supplies. The answer lies in quality Power supplies and separate LED modules without extraordinary constraint on space. One of the best articles I have come across on EDN
  • 11.07.2012
  • Fundamentals of Energy Metering
  • Wonder whether the energy meter is actually a 3 entities being multiplied by a microcontroller at the very basic level.Replace the input to the cuurent sensors and you can have 3 entity multiplier.Have I got it wrong??
  • 05.15.2012
  • Plastic doesn't pollute, people do
  • I guess Social Mania about anything is dead right. They are anti everything modern and yet use the modern technology and fly around mostly at public costs or vested interests. Fact is the dicipline required to make modern technology sustainable is conveniently ignored. Such as disposal of plastics.
  • 11.08.2010
  • A123 plugs into global battery market
  • Re Mr Nando's comment.One more issue often ignored is that Solar Power is not free( As is cleverly promoted) . The battery cost is the real cost for delivering power.
  • 10.10.2010
  • ‘Ideas’ could be India’s next growth industry
  • This has reference to Jayant Deosthali and hm's comments.Truly,the answer lies in Indians identifying conveniences peculiar to Indian habits and finding solutions.Indians prefer to be secretive and perhaps there are several good ideas are left in somebody's computer memory.Somehow Indians at Policy making levels tend to get carried away by the products which claim to be state of art with slick presentations and are of utility to a miniscule section of society.
  • 10.20.2009
  • LEDs and Lighting: Market could hit $5 billion by 2012
  • LEDs as an energy effficient solution for lighting will certainly devlop with higher efficcacy LEDS hitting market. What one tends to notice is the inadequate effort or data on what happens to it's output AND life under power supply conditions that are not ideal.For exmple lo battery voltage or varying power supply ac voltage/frequency.The constant cuurent drivers give an impression that they maintain LEDs at desired lamp voltage/ current / waveshapes but do they really?? JUnction level data does not seem to be available or is it suppressed??