EDN

RGB LED PWM Driver Based on Power MOSFET

A logic level N-channel high power MOSFET is used to create this RGB LED driver that would allow LED arrays or lamps of up to 5A per channel to be controlled without heatsink installed. A PIC16F863 is ...
Digi Times

National Semi introduces full-bridge PWM controllers with integrated MOSFET gate drivers

National Semiconductor has introduced what the company claims is the industry's first full-bridge pulse width modulation (PWM) controllers to integrate all four primary-side bridge MOSFET gate drivers ...
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 ...
Electronic Design

Off-Line PWM Controllers Integrate Power MOSFET

A family of off-line pulse-width-modulation (PWM) controllers from Allegro MicroSystems incorporates a sense MOSFET and current-mode PWM controller IC. Developed and manufactured by Sanken Electric Co ...
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 ...