need zero crossing detectors in some circuits

Led has low current rating. The safe operating forward current is something like 30-40 ma. this is too small for a rectifier application. The practical load rectifier draws more current which also var

There are 5 Different Method of testing capacitor with a multimeter. Method 1: Traditional method to test and verify a capacitor (not recommended for all, but only for professionals) Note: This

Purpose of the fuse box and relay in the car. Fuses limit current and protect against fire. Relays allow small control signals to run heavier equipment using larger signals, eg. headlights, starte