Rectifier circuit performance: some new approximate formulas

New formulas are offered for the calculation of the performance parameters of halfwave and fullwave rectifiers: average output voltage, effective and peak values of diode current, peak-peak ripple and `trough¿ value of output voltage (the lower extreme of the ripple). These are expressed in terms of the impedance and frequency of the a.c. source, the size of the reservoir capacitor and the load current or the load resistance, depending on which is in practice constant. The formulas are convenient provided that an electronic calculator is available.