I recently purchased a used 10A Carroll & Meynell Variac from eBay for use in the lab, however the variac often caused the 32A B-curve MCB in the consumer unit to trip due to the high inrush current of the variac core. To prevent this from happening and to add…
In this video, Steve builds a 6 digit LED clock from some Kingbright SA23-12SRWA 7 segment displays and a Microchip PIC18F26K20 microcontroller. You can build one for yourself with the schematics posted under my LED clock page http://www.youtube.com/watch?v=Ov27rac0tP0
In this video Steve interfaces the DC-DC converter circuit with a Microchip dsPIC33FJ16GS502 microcontroller to create a microcontroller-based constant current LED driver. The dsPIC33FJ16GS502 microcontroller has four analogue comparators which allow expandability to 4 independent constant current channels. http://www.youtube.com/watch?v=Jcble4aiNlw