EDN

High-power LED driver with integrated high-side LED current sense and PWM dimming MOSFET driver

The MAX16834 is a current-mode high-brightness LED (HB LED) driver for boost, boost-buck, SEPIC, and high-side buck topologies. In addition to driving an n-channel power MOSFET switch controlled by ...
Electronic Design

Low-EMI LED Driver Features Integrated Switches, Internal PWM Dimming

How a single LED driver can support buck, boost, and buck-boost topologies. Design details for each topology type. How such drivers work in automotive and machine-vision designs. The breadth of LED ...
Electronic Design

Adapt DC Voltage To Perform PWM DImming Of High-Brightness LEDs

High-brightness LEDs (HBLEDs) are making inroads into more traditional lighting applications that include a dc distribution system (for example, 24-V MR-16 track lights). HBLEDs are more efficient, ...
EDN

High Power LED Dimmer Circuit

I made this dimmer circuit because I have a cheap chinese LED lamp that doesn’t have the option to dim its light. It is a simple PWM dimmer built with the well-knows 555 integrated circuit and a power ...