EDN

Analog Circuit Design, Part 5: Integrated 100V controller drives high power LED strings from just about any input

Part 2: A 60V buck-boost controller drives high power LEDs, charges batteries and regulates voltage with up to 98.5% efficiency at 100W and higher. Part 3: Offline LED lighting simplified: A high ...
Electronic Design

LED Balancing Circuit With Power Limit

Light-emitting diodes (LEDs) are often used with a voltage source from a power-supply output voltage. The output voltage increases until the current through the LEDs reaches the value of the ...
EDN

Balancing LED Current in Parallel String

Another important concern is the balance of currents that flow in multiple strings. We know that two or three strings of LEDs will have different combined forward voltages. The LED driver will deliver ...
Electronic Design

Triple-Output LED Driver Works With Common-Anode LED Strings

SOME MULTI-STRING LED MODULES come with a common-anode configuration. The commonanode connection reduces the number of wires between the LED module and its driver from 2N to N+1, where N is the number ...
Embedded

Analog design Tip: A Simple Circuit to Protect Against Open LED Faults

Lighting a string of LEDs at a constant brightness requires driving it with a regulated current. A boost converter is commonly used to step up the voltage to a level high enough to bias the LEDs on ...