A convex function is a real-valued function defined on an interval with the property that its epigraph (the set of points on or above the graph of the function) is a convex set.
A rectifier is a electrical device that converts alternating current to direct current, a process known as rectification. Rectifiers are used as components of power supplies and as detectors of radio signals. Rectifiers may be made of solid state diodes, vacuum tube diodes, mercury arc valves, and other technologies.
A rectifier is diode circuit designed to get dc out put from an ac input. There is full wave and half wave rectifiers. Full wave rectifiers are bridge rectifiers and half wave rectifiers are single diode rectifiers.It is used in power supplies of electronic systems.he term rectifier is sometimes applied to other devices but specifically a rectifier is a combination of diodes used to convert AC voltage to DC voltage. The rectifier is either half-wave or full-wave.