Comparison of four common topologies for powering LEDs

For example, when driving one or more LEDs, the minimum and maximum forward voltage drop, current level, and operating temperature of the LED determine the desired converter output voltage range. For example, when looking at a typical red LED product specification, I found that the forward voltage d ...READING MORE...

Posted on

LED double-primary electronic screen project public ten…

Entrusted by the purchaser to conduct government procurement of the projects and services mentioned in the second part of this document by means of open tendering and procurement, qualified suppliers are welcome to participate in the bidding. I. Item No.: PTCG2008006-G Second, the project name: L ...READING MORE...

Posted on

Analysis of China's speech recognition technology m…

Nuance has been rushing into China a few years ago, and the road to development has been astounding. Apart from the seizure in the field of car voice navigation, there is almost no income in other fields such as finance, government, and call centers that were originally vowed ...READING MORE...

Posted on

The United States will build the world's largest ph…

Florida Electric Power Lighting (FPL) and a real estate development company will join hands and are expected to start engineering at the end of 2010 to build the first Sun City in the United States. According to Reuters, Florida Power & Light Group Inc. is working with real estate development ...READING MORE...

Posted on

From October onwards, 60-watt and above incandescent LE…

In 1879, American scientist Edison invented incandescent lamps to illuminate the world. However, over the years, incandescent lamps have ceased to be the mainstream of light bulbs for various reasons. In October 2012, China stopped selling 100 watts and above incandescent lamps. In January 2014, th ...READING MORE...

Posted on