A buck-boost controller IC with four external switching MOSFETs can operate from input voltages above, below, or equal to the output voltage, enabling them to regulate the light output for a string of ...

When it comes to ATmega8 basic I/O interfacing, we just learned how to connect a switch as an input device to control one LED connected as an output device. Now a simple tour through selected areas of ...

The device includes an input shift register, data latches, and 16 constant-current sink drivers delivering up to 50 mA per channel at 12 V. The CMOS shift registers and latches allow direct ...

The first program anyone writes for a microcontroller is the blinking LED which involves toggling a general-purpose input/output (GPIO) on and off. Consequently, the same GPIO can be used to read ...

High power LED lighting is harder than it looks. Power, dimming, control, and communication collide in one design.

High-brightness LEDs are an inexpensive, robust, and green replacement for halogen light bulbs. This Idea for Design shows you how to apply an AC LED driver to convert the usual 12 or 24 V AC ...