A Simplified Analysis and Design of the Rectifier with Capacitive Filter

This article presents a simple and rather precise method for analysis and design of a transformer-coupled input rectifier with a filter capacitor, which is used as a power supply for electronic circuits. It is based on an original logarithmic equation that determines the conduction angle of the rectifier diodes as a function of the transformer equivalent resistance. This equation can replace the classical design procedure that is based on coefficients taken from nonlinear graphical diagrams. Some experimental results that verify the proposed theory are also presented.