Over the past ten years or so, ceramic capacitors have made great strides in volumetric efficiency. 1 µF used to be the biggest you could get, and now, at a low voltage, you can get 470 µF in a small ...

Many power supplies use hold-up capacitors to keep enough energy at the full-wave or bridge rectifier output to supply a load when the rectified voltage drops and rises again at the next half-cycle of ...