Dual Regulated Power Supply Circuit Diagram. The figure below shows a project schematic of a 5v dual power supply using 7805 and 7905 voltage regulator ics. A power supply like this is a very essential tool on the work bench of an electronic hobbyist.
Here is a circuit of a 15v regulated dual power supply. The transformer can be any 230v ac or 110v ac to 24v also use suitable heatsinks with the ics. Regulated power supply is an electronic circuit that is designed to provide a constant dc voltage of predetermined value across load terminals irrespective of ac mains fluctuations or load variations.
Converting 220v ac into 12v ac using step down transformer.
The output of the circuit is 15v and 15v dc. Many projects in electronics require dual power supplies. Converting 220v ac into 12v ac using step down transformer. 79xx ic used to regulate the negative input voltage where as the 78xx ic used for positive input dc voltage regulate.
