Asynchronous vs. synchronous topologies. How a synchronous boost LED controller minimizes efficiency losses. The challenge of low-input-voltage operation. High-power LEDs continue to proliferate in ...

The LED backlight in an LCD panel is the biggest power hog in notebook and tablet applications. As screen resolution and brightness level increase, the input power consumed by the LED backlight ...

Controlling the brightness of LEDs requires a driver that provides a constant, regulated current. To achieve this goal, the driver topology must be able to generate a large enough output voltage to ...

Catalyst Semiconductor, a supplier of analog, mixed-signal and non-volatile memory semiconductors, has expanded its line of high-power LED drivers with a new device optimised for the mid-size LCD ...

Due to their light output and long life, high-brightness LEDs are well-suited for use in flashlights. Typically, the LEDs are driven with a constant current. So when the battery voltage drops, the ...

Last week, Zetex released three power LED driver chips. Electronics Weekly decided to look deeper into the technology. There are three white power LED drivers; the ZXLD1320 1.5A buck, 1321 1A boost ...

PLANO, Texas--(BUSINESS WIRE)--Diodes Incorporated (Diodes) (Nasdaq: DIOD) today launches a boost/single-ended primary inductance converter (SEPIC) controller for various automotive LED applications.

Fairchild Semiconductor's LED Backlight Boost Switches Reduce Power Losses, Minimize Sub-Harmonic Oscillation in High-Power LED Applications Integrated High-Voltage Dimming MOSFETs Provide Fast ...

SAN JOSE, Calif.--(BUSINESS WIRE)-- Designers of high-power LEDs are challenged with preventing power losses and sub-harmonic oscillations associated with inefficient discontinuous conduction mode ...