Electronics lesson: electronic parts, electronic components, electronic projects, circuit diagram and more
Quartz is known as passive component, which is unique to vibrate (resonate) at a frequency that is very specific and very stable. Usually used for the oscillator, clock, counter, frequency counter, and generally any equipment that temporal precision is important. Quartz can also be used in the production of filters with narrow bandwidth rejector and high rejection ratio.
Mica insulators is sometimes used to isolate a single component of the heatsink, for example in cases where multiple components share the same heatsink, and this component must be isolated from one another (base metals or triac transistor can be connected to one electrode component).
Transformers transform Alternating current electricity from one voltage to a different voltage with minimal loss of power. Transformers run just with Alternating current (AC) and this certainly one of the explanation why mains electricity is AC.
Step-up transformers increase voltage, step-down transformers decrease voltage. Most power supplies use a step-down transformer to reduce the dangerously high mains voltage (230V in UK) to a safer low voltage.
