As high-efficiency ultra-bright white LEDs come down in cost, they are approaching cost parity with conventional mercury vapour, HID quartz metal halide and high/low pressure sodium lighting on a cost ...

While we have now published quite a few LED driver circuits, to date we have not published a design to drive a bunch of high-brightness white LEDs. Such a circuit is now quite desirable as the price ...

This idea describes a white- LED (WLED) driver circuit controlled by a simple ambient light sensor (ALS). A typical application would be a brightness control for cell-phone backlighting. On a very ...

Enlarging the MIC22xx family of 1.2 MHz, white LED drivers, the MIC2292 and MIC2293 are described as high-efficiency devices, aimed at applications that provide color-LCD backlighting in cellular ...

SUNNYVALE, Calif., Aug. 26, 2010 (GLOBE NEWSWIRE) -- Alpha and Omega Semiconductor Limited (AOS ) (Nasdaq:AOSL) announced the release of AOZ1960, a high-efficiency multi-string DC-DC boost white LED ...

Linear constantcurrent drivers, for instance, offer low EMI, low cost, and use only a few components. Many designers favor them for low-current applications where power loss is a minor concern. If ...