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2014-06-11 Techniques for enabling dimmable LED bulbs
Many LED lamps are advertised as dimmable, however in reality the performance of many of them is unimpressive with varying results depending on the dimmer used and loading of the circuit
2013-01-29 Save power in LCD TVs with LED driving techniques
New design techniques in LED driver circuits promise to deliver significant energy savings that will go a long way to helping TV manufacturers meet the tough requirements for power consumption
2009-10-23 LED driver delivers over 20A continuous current
The LT3743 provides up to 20A of continuous LED current from a nominal 12V input, delivering in excess of 80W
2014-01-16 How to drive LED with fluorescent ballast (Part 2
Learn about AC/DC converter with active LED current control, high harmonic input current and maximum LED string lengths for ballast types
2015-04-13 High-voltage IC technology for bias supply design
Here's a look at some of the key requirements and challenges in designing off-line, non-isolated bias supplies, and how high-voltage IC technology can help simplify such designs
2013-10-30 Functions of 60V high current LED driver
Read about a 60V synchronous, step-down DC/DC controller designed to regulate LED current at 20A with PWM dimming
2015-07-13 Drives LEDs efficiently with constant-voltage topology
Here is a look at an AC/DC single-stage driver for dimmable LEDs that combines digital control techniques with embedded algorithms
2013-09-16 Drive high-power LED, charge high-voltage battery
Here's a look at a 60V buck-boost controller that delivers 100W to LED headlights or a battery stack
2013-07-25 Benefits of colour regulation via feedback control
Know how to reduce the overall costs and future maintenance costs of a lighting system by using direct feedback solutions.
2005-06-30 White-LED driver touts innovative brightness control
Micrel points to its MIC2297, a PWM boost regulator that's optimized for driving 10 white LEDs in series, for its innovative brightness control circuitry, which in addition to conserving power also helps to cut noise and EMI.
2006-03-31 White LED drivers feature dual-gain architecture
National Semiconductor introduced three new inductorless white LED drivers for display backlighting in cellphones, PDAs, portable gaming devices and MP3 media players
2006-08-16 White LED drivers enable independent brightness control
National's new highly integrated, charge-pump-based, constant-current white LED drivers are suited for single- or multidisplay backlighting in portable consumer products and handsets
2008-06-23 White LED driver shines in notebook LCD displays
TI introduces a six-channel, 40V white LED driver with a built-in, high-efficiency boost regulator and 1.5-A FET
2012-03-29 TI's LED driver boasts primary side sensing, PFC
The TPS92310 AC/DC constant current driver for non-dimmable LED lighting that aims to reduce cost and shrinks-to-fit high-power LED retrofit bulbs including A19, PAR30/38 and GU10
2005-12-05 Supertex LED driver IC with wide input voltage range
Supertex unveiled a new LED driver IC designed to provide high LED current accuracy and a very wide input voltage range of 9V to 250V. Target applications include RGB backlighting, automotive lighting, and battery powered LED lamps
2013-08-14 SSL LED driver integrates boost, flyback converters
The iW3623 from Dialog Semiconductor offers a universal 100-277VAC input range and output power up to 45W.
2009-11-27 Ref design eases high-efficiency LED apps dev't
ON Semiconductor GreenPoint reference designs that will speed and simplify the development of high-efficiency LED-based lighting applications
2008-03-27 Powering and dimming high-brightness LEDs with the LM3405 constant-current buck regulator
This article describes a few of the many application solutions for the LM3405 LED driver
2005-09-01 Power IC with charger boosts management potential
Summit Microelectronics' multi-output SMB122, a 2G power-management IC equally at home in either single Lithium-ion cell or AC-input applications, brings power regulation and advanced power control to the designer's table
2008-04-01 Pick the right output capacitors for LED drivers
LEDs require a well-designed constant-current source for controlled brightness. The output capacitor in the traditional buck converter that serves to drive LEDs can have a significant effect on control-loop characteristics, and the capacitor type as well as the output circuit configuration is often critical. Here's how to pick the right capacitors for your intended application.
2008-03-05 No-noise LED drivers suit low-cost portable devices
Leadis Technology's new family of no-noise, 4-channel white LED drivers target a new generation of low-cost handsets and portable products that use lower-VF white LEDs and lower-cost TFT-LCD modules
2008-04-16 NCP101x LED flasher with Luxeon V Star LED
This application note describes how to easily design simple, isolated AC/DC converter for powering Luxeon V Star LED in flashing mode
2013-07-09 Modular LED drivers minimises time-to-market
What are the dangers with bespoke devices and why are off-the-shelf LED drivers generally the better solution
2003-05-09 Maxim LED driver controls four white LEDs
The MAX1573 white LED driver is capable of driving up to four white LEDs with a regulated, constant current
2013-11-20 Match LED driver architecture with the application
Read about LED driver architectures and their impact on the performance of a lighting application
2013-05-16 LED lighting future getting brighter
The combined growth potentials of HB LEDs and high lumen LED lighting systems represent a significant increase in demand from today's deployment rate for both the LEDs themselves and for the LED driver ICs required to drive them
2014-08-29 LED light engine pumps 100 lumens per watt
The device from Seoul Semiconductor features Acrich3 IC technology that, when operated in power compensation mode, can adapt to variations in the line-voltage
2011-11-03 LED drivers offer 3% current accuracy
Supertex's HV9861A targets solid-state lighting applications and requires no loop compensation or high-side current sensing.
2011-07-21 LED drivers feature 0.2% channel-to-channel accuracy
austriamicrosystems' LED drivers that target edge- and direct-lit TVs boast optimized picture quality and built-in safety
2012-03-16 LED driver ups LCD TV power efficiency by 9
It is the first device of its type to provide LED driving capabilities in TVs based on the LCD integrated power supply (LIPS) architecture, Microsemi said
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