For this reason,engineers often favor isolated flyback driver circuits over thesimpler but nonisolated buck topology. Flyback LED driversalso offer simplicity; low cost; the ability to achieve a ...

International Rectifier’s IRS29831 LEDrivIR integrates an LED driver controller and a 700-V MOSFET optimized for single-stage flyback and buck-boost topologies used in LED drivers, including LED bulb ...

In this case, a PIC12F1501. A PIC alone won’t handle a 10 watt LED, so he utilized a CAT4101 constant current LED driver from ON Semi. The PIC performs three tasks in this circuit.

A Simple Over-Voltage Protection Circuit for LED Drivers This boost circuit implements current mode control and senses the LED current via resistor R14. The output voltage is boosted to just over 30V ...

LED Drivers Dedicated LED driver chips enable you to control LEDs effectively without having to think about all the parameters.

This Idea for Design presents a simple and small solution for driving an LED to provide visual feedback in the presence/absence of a system’s power.

This implementation has the advantage that a simple, low-side MOSFET driver circuit can be used. The topology shown in Figure 1 willgenerate a positive voltage, referenced to the input-voltage rail.

Protect your LED lighting circuits Guest columnist Faraz Hasan, marketing and business development manager at Tyco Electronics Circuit Protection Products says that LEDs can require overcurrent ...

Modern LED driver circuits resemble a switch-mode regulator or dc-dc converter. Most common driver varieties use some of the same topologies as used in these basic regulator dc-dc converter circuits.

Simple constant current LED drivers for automotive Diodes has released simple LED driving chips for regulating current in strings of LEDs, particularly in cars and other road vehicles – some of which ...