MAX1553 Evaluation Kit - Part Number Search
... Surface-mount white LEDs come installed on the EV kit, but it can also be connected to an external LED string. To connect external LEDs, cut the trace shorting JU4. Then, connect the anode of the series string to OUT1+ and connect the cathode of the series string to OUT1-. Using Separate Supplies to ...
... Surface-mount white LEDs come installed on the EV kit, but it can also be connected to an external LED string. To connect external LEDs, cut the trace shorting JU4. Then, connect the anode of the series string to OUT1+ and connect the cathode of the series string to OUT1-. Using Separate Supplies to ...
Evaluates: MAX1575 MAX1575 Evaluation Kit General Description Features
... eleventh press returns the LEDs to full brightness. Refer to the MAX1575 data sheet for more information on the dimming feature. Using External Pulse Generators for Dimming To use external pulse generators in place of the pulse generators included with the EV kit, simply connect the outputs of the e ...
... eleventh press returns the LEDs to full brightness. Refer to the MAX1575 data sheet for more information on the dimming feature. Using External Pulse Generators for Dimming To use external pulse generators in place of the pulse generators included with the EV kit, simply connect the outputs of the e ...
Application Note
... • The improvement in current sharing comes with the disadvantage of higher power consumption in the resistors and lower system efficiency. • If a single LED fails short, the remaining LEDS in the same string will be exposed to a higher stress level as they are forced to handle a larger share of curr ...
... • The improvement in current sharing comes with the disadvantage of higher power consumption in the resistors and lower system efficiency. • If a single LED fails short, the remaining LEDS in the same string will be exposed to a higher stress level as they are forced to handle a larger share of curr ...
LITE-ON TECHNOLOGY CORPORATION
... 1. Application The LEDs described here are intended to be used for ordinary electronic equipment (such as office equipment, communication equipment and household applications).Consult Liteon’s Sales in advance for information on applications in which exceptional reliability is required, particularly ...
... 1. Application The LEDs described here are intended to be used for ordinary electronic equipment (such as office equipment, communication equipment and household applications).Consult Liteon’s Sales in advance for information on applications in which exceptional reliability is required, particularly ...
1 Light Emitting Diodes and Solid-State Lighting Solid-state
... Telephone company (AT&T) decided that green is better color than red ...
... Telephone company (AT&T) decided that green is better color than red ...
Application Note: 1 LED Power Supplies Common LED Configurations
... Failure Modes: In this configuration if a single LED fails short cct there is virtually no impact on the other LEDs. Each continues to be powered with the same current as it was in normal operation. Overall less power is consumed and the lamp decreases in brightness by 1/n where n is the number of L ...
... Failure Modes: In this configuration if a single LED fails short cct there is virtually no impact on the other LEDs. Each continues to be powered with the same current as it was in normal operation. Overall less power is consumed and the lamp decreases in brightness by 1/n where n is the number of L ...
Light Emitting Diodes (LEDs)
... there may be a slight flat on the body of round LEDs. If you can see inside the LED the cathode is the larger electrode (but this is not an official identification method). LEDs can be damaged by heat when soldering, but the risk is small unless you are very slow. No special precautions are needed f ...
... there may be a slight flat on the body of round LEDs. If you can see inside the LED the cathode is the larger electrode (but this is not an official identification method). LEDs can be damaged by heat when soldering, but the risk is small unless you are very slow. No special precautions are needed f ...
Lighting Up Your Garments
... garment which produces a 360o light source when activated but appears blank when not in use. This item is also selfcharging using printed photovoltaic panels across the shoulders and on the back of the jacket [2]. ...
... garment which produces a 360o light source when activated but appears blank when not in use. This item is also selfcharging using printed photovoltaic panels across the shoulders and on the back of the jacket [2]. ...
Color Stabilization of RGB LEDs in an LED Backlighting Example
... and blue sub pixels, offers a solution to backlight a display with these same primary colors. By mixing the primary colors in the proportions of 64% green, 8% blue and 28% red, a white light can be created. When considering various types of LEDs, the MultiLED emerges as an optimal light source for b ...
... and blue sub pixels, offers a solution to backlight a display with these same primary colors. By mixing the primary colors in the proportions of 64% green, 8% blue and 28% red, a white light can be created. When considering various types of LEDs, the MultiLED emerges as an optimal light source for b ...
LTPL-C034UVH430
... (B) The brightness of each LED might appear different due to the differences in the I-V characteristics of those LEDs. © This LED should be used under forward current, particularly not used under continuous reverse current to avoid the damage to LED. ...
... (B) The brightness of each LED might appear different due to the differences in the I-V characteristics of those LEDs. © This LED should be used under forward current, particularly not used under continuous reverse current to avoid the damage to LED. ...
ECE PowerPoint Presentation - Multimedia Communications
... University Slideshow Title Goes Here Determining the turn-on voltage ...
... University Slideshow Title Goes Here Determining the turn-on voltage ...
32 LED-es Knight Rider Villogó PIC-el
... The KnightRider is constructed on a PC board coded 08105021 and measuring 210 x 72mm. Begin construction by checking the PC board for shorted tracks or any breaks in the copper pattern. Check the pattern against the published artwork to verify that it is correct. Repair any defects on the PC board b ...
... The KnightRider is constructed on a PC board coded 08105021 and measuring 210 x 72mm. Begin construction by checking the PC board for shorted tracks or any breaks in the copper pattern. Check the pattern against the published artwork to verify that it is correct. Repair any defects on the PC board b ...
Levels of Difficulty - IFSC-USP
... is from an infrared LED like the ones used in TV Peak Emission Frequency (THz) remote controls, but you won’t be able to measure its wavelength with the human eye! The blue LED is relatively new; blue LEDs were first made only in the last few years and soon we will have blue semiconductor lasers. Qu ...
... is from an infrared LED like the ones used in TV Peak Emission Frequency (THz) remote controls, but you won’t be able to measure its wavelength with the human eye! The blue LED is relatively new; blue LEDs were first made only in the last few years and soon we will have blue semiconductor lasers. Qu ...
future kit - Electrokit
... This counter has 10 outputs and therefore counts up from 0-10. Each of these 10 outputs is connected to an LED. R5 and R6 is voltage drop for each LED. PCB assembly: Shown in Figture 3 is the assembled PCB. Starting with the lowest height components first, taking care not to short any tracks or touc ...
... This counter has 10 outputs and therefore counts up from 0-10. Each of these 10 outputs is connected to an LED. R5 and R6 is voltage drop for each LED. PCB assembly: Shown in Figture 3 is the assembled PCB. Starting with the lowest height components first, taking care not to short any tracks or touc ...
LED Biasing Fundamentals Resistor Bias
... transistor and compare to a resistor biased circuit. For each circuit three different loads consisting of a red, green and blue LED will be used. In this section we will look at a simple resistor bias and the effect on current in a circuit when an LED is replaced with another LED of different colour ...
... transistor and compare to a resistor biased circuit. For each circuit three different loads consisting of a red, green and blue LED will be used. In this section we will look at a simple resistor bias and the effect on current in a circuit when an LED is replaced with another LED of different colour ...
mlq = 50 100053 series
... This must be taken into account when using the LEDs as the temperature gets higher when the LEDs are densely mounted. It is necessary to design the circuit so that the operating temperatures are within the absolute maximum ratings of the device. The operating current should be decided after consider ...
... This must be taken into account when using the LEDs as the temperature gets higher when the LEDs are densely mounted. It is necessary to design the circuit so that the operating temperatures are within the absolute maximum ratings of the device. The operating current should be decided after consider ...
LED Biasing Fundamentals Transistor Bias
... transistor and compare to a resistor biased circuit. For each circuit three different loads consisting of a red, green and blue LED will be used. In this section we will look at current stability through an LED using a voltage divider biased transistor circuit as a current source. ...
... transistor and compare to a resistor biased circuit. For each circuit three different loads consisting of a red, green and blue LED will be used. In this section we will look at current stability through an LED using a voltage divider biased transistor circuit as a current source. ...
Low-cost Allergy Fighter
... Phototherapy—does it really work? There are several portable devices out there to treat the effects of allergies like hay fever, by means of red light. Its creators claim that these treatments make the walls of the mast cells less penetrable, causing them to react slower to pollen and as a result le ...
... Phototherapy—does it really work? There are several portable devices out there to treat the effects of allergies like hay fever, by means of red light. Its creators claim that these treatments make the walls of the mast cells less penetrable, causing them to react slower to pollen and as a result le ...
Theory and Designs for Building a White LED Headlamp
... White LEDs are actually solid state fluorescent lamps consisting of a LED emitting blue light which excites a phosphor which emits white light. These LEDs were developed by the Japanese company Nichia and subsequently have also been manufactured or marketed by HP, Chicago Miniature Lamp, and Sloan P ...
... White LEDs are actually solid state fluorescent lamps consisting of a LED emitting blue light which excites a phosphor which emits white light. These LEDs were developed by the Japanese company Nichia and subsequently have also been manufactured or marketed by HP, Chicago Miniature Lamp, and Sloan P ...
Specific Lighting
... (B) The brightness of each LED might appear different due to the differences in the I-V characteristics of those LEDs. © This LED should be used under forward current, particularly not used under continuous reverse current to avoid the damage to LED. ...
... (B) The brightness of each LED might appear different due to the differences in the I-V characteristics of those LEDs. © This LED should be used under forward current, particularly not used under continuous reverse current to avoid the damage to LED. ...
Document
... heating. It is better with the halogen lamps but still most of the energy is lost. Furthermore halogen luminaries are often blamed to be responsible for many household fires, because they get heated about 500°C. Compact fluorescent lamps (CFLs) are with better efficiency – 4 times less energy consum ...
... heating. It is better with the halogen lamps but still most of the energy is lost. Furthermore halogen luminaries are often blamed to be responsible for many household fires, because they get heated about 500°C. Compact fluorescent lamps (CFLs) are with better efficiency – 4 times less energy consum ...
Behaviour of InGaN LEDs in Parallel Circuits Application Note
... The Information shown in this document was produced with due care, but is provided by OSRAM Opto Semiconductors GmbH “as is” and without OSRAM Opto Semiconductors GmbH assuming, express or implied, any warranty or liability whatsoever, including, but not limited to the warranties of correctness, com ...
... The Information shown in this document was produced with due care, but is provided by OSRAM Opto Semiconductors GmbH “as is” and without OSRAM Opto Semiconductors GmbH assuming, express or implied, any warranty or liability whatsoever, including, but not limited to the warranties of correctness, com ...
High Power White LED NSPW500BS
... ・ When inspecting own final products on which LEDs were mounted, it is recommended to check also whether the mounted LEDs are damaged by static electricity or not. It is easy to find static-damaged LEDs by light emission test at lower current (below 1mA is recommended). ・ Damaged LEDs will show some ...
... ・ When inspecting own final products on which LEDs were mounted, it is recommended to check also whether the mounted LEDs are damaged by static electricity or not. It is easy to find static-damaged LEDs by light emission test at lower current (below 1mA is recommended). ・ Damaged LEDs will show some ...
Properly protecting LED light strings keeps them working
... boom in product designs incorporating LEDs. Part of their appeal is that they are low cost, high performance, require virtually no maintenance, and can theoretically last forever. They are increasingly being used in harsh outdoor lighting environments, which is different from their original use main ...
... boom in product designs incorporating LEDs. Part of their appeal is that they are low cost, high performance, require virtually no maintenance, and can theoretically last forever. They are increasingly being used in harsh outdoor lighting environments, which is different from their original use main ...
Light-emitting diode
A light-emitting diode (LED) is a two-lead semiconductor light source. It is a p–n junction diode, which emits light when activated. When a suitable voltage is applied to the leads, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is called electroluminescence, and the color of the light (corresponding to the energy of the photon) is determined by the energy band gap of the semiconductor.An LED is often small in area (less than 1 mm2) and integrated optical components may be used to shape its radiation pattern.Appearing as practical electronic components in 1962, the earliest LEDs emitted low-intensity infrared light.Infrared LEDs are still frequently used as transmitting elements in remote-control circuits, such as those in remote controls for a wide variety of consumer electronics.The first visible-light LEDs were also of low intensity, and limited to red. Modern LEDs are available across the visible, ultraviolet, and infrared wavelengths, with very high brightness.Early LEDs were often used as indicator lamps for electronic devices, replacing small incandescent bulbs. They were soon packaged into numeric readouts in the form of seven-segment displays, and were commonly seen in digital clocks.Recent developments in LEDs permit them to be used in environmental and task lighting. LEDs have many advantages over incandescent light sources including lower energy consumption, longer lifetime, improved physical robustness, smaller size, and faster switching. Light-emitting diodes are now used in applications as diverse as aviation lighting, automotive headlamps, advertising, general lighting, traffic signals, camera flashes and even LED wallpaper. As of 2015, LEDs powerful enough for room lighting remain somewhat more expensive, and require more precise current and heat management, than compact fluorescent lamp sources of comparable output.LEDs have allowed new text, video displays, and sensors to be developed, while their high switching rates are also useful in advanced communications technology.