Basic LED driving options At a basic level, a single string of LEDs is easy to drive: place a current-limiting resistor between the AC or DC source and the LED; for use from an AC line, LEDs can be ...

The current in each LED is approximately 10 times the current that you draw from the REFOUT output pin. The part maintains 1.25V between the REFADJ and REFOUT pins. The V R2 /R 10 /R 13 voltage ...

Second, the pass transistor’s (VT1’s) load-current capability depends on its base current, which depends on the number of LEDs used in series (that is, on output voltage).

We'll talk about three big ideas: electric potential difference (voltage), electric current, and electric field. Yes, they are all related, and I will show you how with some water and an LED.

The LT3796 series of 100V, high-side current sense DC/DC controllers from Linear Technology are designed to regulate a constant current or voltage. Used for driving high brightness LEDs, the ...

Good PQ monitors do more than graph voltage and current trends against time and frequency. Humans like to see images, especially when trying to analyze and solve a problem. Therefore, being able to ...

Linear Technology has announced the LT3909, a high efficiency, constant current LED driver that can drive two strings of up to 10 LEDs at 50mA. To ensure constant brightness, each LED string contains ...

When Facebook unveiled its new Graph Search function earlier today, it also unveiled the two people who spearheaded the new "third pillar" of Facebook: Lars Rasmussen and Tom Stocky, two heavy ...

Date Announced: 24 Sep 2012 Plano, Texas – Delivering a constant current of up to 150mA, the AL5812 60V linear LED driver from Diodes Incorporated provides designers of low-current illumination and ...

Date Announced: 08 Oct 2007 -- The NCP3065 reduces power dissipation in the sense resistor by 80 percent compared to competitive solutions and delivers 2 percent better total system efficiencyPHOENIX, ...

The new series of constant current regulators is based on patent-pending self-biased transistor technology, and is targeted for a broad range of LED applications with varying input voltage.