A simple three-component solution for a switching regulator chip to use for output voltage programming via PWM.

Series circuits cannot support LED lights due to high voltage operation." The remainder of the lights are on multiple circuits, which, the site explains, "a lower voltage circuit connection with ...

ProVue MAX Magnifying Lamps: Precision Meets Versatility The ProVue MAX features a 6-inch, crystal-clear glass lens with 2.25x magnification and 64 adjustable LEDs offering three color temperatures ...

(Note the limited operating voltage range of potentiometer U2.) The simple addition of U3 and R2 in the Figure 2 circuit mitigates these problems by reducing the required maximum value of “num”. For ...