The LED driver automatically adjusts the output voltage to keep the output current constant and therefore the light output constant. This works with a single LED or with a chain of string of LEDs ...

This Design Idea circuit regulates the current through one or more LEDs, making it almost independent of supply voltage. Its main advantage is a very small dropout voltage, which can be less than ...

In a previous article, I discussed LEDs in general and their properties. In this write-up, I want to give some examples of driving LEDs and comparing a few of the most commonly used methods. There is ...

TOKYO--(BUSINESS WIRE)--Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has launched two new photorelays "TLP170AM" and "TLP170GM" in a small 4-pin SO6 package, for security systems, ...

Under the agreement, Cree LED has been granted by Current, a limited, nonexclusive, and world-wide license under U.S. Patent Nos. 7,358,542; 7,453,195; 7,497,973 ...

A pair of dc-dc converters is specifically designed to drive high-current LEDs at a constant current. The LT3478EFE and LT3478EFE-1 from Linear Technology feature a 2.8- to 36-V input range that suits ...

PLANO, Texas--(BUSINESS WIRE)--Diodes Incorporated (Diodes) (Nasdaq: DIOD) today introduces a new 36-channel automotive-compliant* linear LED current driver. The AL5887Q, with its ability to drive RGB ...

Allegro MicroSystems has introduced a new DC-DC converter controller, providing a programmable constant current output for driving high power LEDs in series. Allegro's A6271 controller is based on a ...

This “Product How-To” article focuses how to use a certain product in an embedded system and is written by a company representative. Light-emitting diodes (LEDs) have emerged in recent years as ...

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 ...