NXP Improves LED Light Color Quality The light quality of an LED is significantly different from that of an incandescent lamp: the LED lamp is “cooler” than the incandescent lamp when it is dimmed. At the 2013 International Consumer Electronics Show held last week, NXP Semiconductors (Nasdaq: NXPI) demonstrated a breakthrough solution through which LED lamps can mimic the traditional incandescent lamp When it is dark, it can produce warmer and more comfortable white light. In addition to the "sensorless sensing" technology developed and patented by NXP, the benefits of this solution include the elimination of the use of an external temperature sensor, reducing the cost of the LED system, reducing the size of the heat sink needed to cool the LED system, and Significantly improve reliability.

The light color of an incandescent lamp becomes warmer and more exotic when it is darker and less bright. In contrast, today's LED lights are generally less light-colored than traditional light bulb users in the entire dimming range.

To emulate incandescent bulbs when the LEDs are dimmed, the NXP solution integrates three key functions into the drive circuit:

Combines white LED and amber LED to form the most pleasing light color (along black body radiation curve) in a cost-effective way

Logarithmic correction of eye sensitivity with an analytical model that allows the desired light color point to be achieved when darkening uses sensorless sensing technology to directly measure LED junction temperature, enabling accurate and efficient real-time temperature correction, which under any conditions Reliable control of LED performance is critical Regardless of the LED's operating time, smart LED drivers developed by NXP enable stable color and light output at any temperature. Sensorless sensing directly measures the LED junction temperature by connecting two existing wires of the LED, which solves the challenge of LED temperature drift and has more advantages than traditional LED temperature measurement methods. The use of sensorless sensing eliminates the need for external sensors or wiring, thereby reducing the total number of components and enabling a more compact heat sink. In addition, sensorless sensing enables fast performance, accurate temperature measurements (~1°C res.), dynamic light control, freedom from heat sinks and operating conditions, no thermal modeling, and self-calibration to compensate for time of use.

Michael Bruno, senior director of advanced technology and future innovation business development at NXP Semiconductors, said: “Our research team has initiated the initiative to answer this question: What will inspire consumers to accept LED lighting with the same emotion as an incandescent lamp? With sensorless Sensing technology, we demonstrated a new approach to incandescent-related warm light by using dimmable LED lights. Sensorless sensing also helps reduce overall system cost by eliminating the need for fewer components. Another major obstacle to widespread use of LEDs is the clever method that significantly improves the reliability and longevity of LEDs, so sensorless sensing has great potential in other areas such as automotive SSL and commercial LED applications."

IBM/Lenovo has recently been announced as being the 4th most valuable brand in the world, as a result, most of the demand for IBM/Lenovo Laptop Charger tends to come from the business world. IBM/Lenovo laptop charger include lenovo thinkpad charger series, lenovo ideapd charger series, lenovo yoga Adapter series and so on.

Different specifications of laptop charger will be suitable for different laptop model series, such as Lenovo IdeaPad Yoga 13, the specifications should be 20V, 3.25A, and the dc tip is square usb with pin inside. The common IBM/Lenovo Laptop Charger specification has45W 20V 2.25A, 65W 20V 3.25A, 90W 20V 4.5A etc, and the dc tip has common 5.5*2.5mm, 4.0*1.7mm, 7.9*5.4mm and Square with pin etc. Also yidashun can produce the 45W, 65W usb type c laptop adapter for IBM/Lenovo.

If you are looking for Power Adapter for IBM/Lenovo, please do not hesitate to contact us, you can find all kinds of replacement IBM/Lenovo laptop adapter. And our adapter with smart IC can protect your laptop with over current protection, over load protection, short circuit protection and over heat protection.

Yidashun's Lenovo computer charger is Brand New Replacement Product, works as Genuine parts, 100% OEM Compatible!!

laptop charger for lenovo 5v 4a 3.5 1.35

for lenovo 20v 4.5a square pin laptop charger

lenovo yoga adapter

Laptop Charger For IBM/Lenovo

Lenovo Laptop Charger,IBM Laptop Charger,Lenovo Thinkpad Charger,Lenovo Computer Charger

Shenzhen Yidashun Technology Co., Ltd. , https://www.ydsadapter.com