Old radios often had selenium rectifiers to convert AC to DC. The problem is that the old units, dating back to 1933, are prone to failure and to release dangerous chemicals like hydrogen selenide. [M ...

Replacing the silicon rectifier diodes in a full-wave bridge with N-type MOSFETs eliminates the V f drop in each conducting pair. The effects of the gain in efficiency are not trivial. To accomplish ...

It is shown how the image force can be taken into account very simply by making a minor improvement in the current theory of rectification. The equations obtained have been compared with experimental ...