This is the simple version of a white LED lamp that can be directly powered from mains. It can give ample light even for reading purpose. Capacitor Cx along with diodes D1 through D4 forms the AC step ...

As you can see in the above circuit diagram, the front end of the circuit is nine white LEDs (LED1–LED9) driven by the common AC 230-V grid power supply. There are several ways to convert an AC ...

Many equipment manufacturers prefer protection circuits combining resettable overcurrent protection devices with upstream fail-safe protection. In this example, R1 represents a ballast resistor used ...

The NanoDriver Series LED drivers employ Seoul’s patented Acrich technology to produce an ultra-miniature device to drive LED circuits from 8 – 24W with 100V input designs with low flicker ...