Dual Power Supply using LM 320 and LM 340

Number of signs needed and bipolar integrated circuits (double V ± o) supplies. This can be done easily with two three-terminal regulators, as illustrated in Fig. Faced with the CA phase is provided by the transformer secondary and a center tap to ground. The only full-wave bridge converts these into positive and negative voltages (with respect to the center tap to ground). Filtration (to ground