摘要:Power Supply is a circuit which is used to supply voltage from the source (PLN)to the circuit. Power supply is widely used in electronic circuits such as radio,television, sound system, and other electronic devices. The function of thepower supply voltage source to align with the circuit so as not to damage thecircuit. There are several sections contained in the power supply include: 1.Transformer. 2. Rectifier (rectifier). 3. Filters (filters). 4. Regulator. The essenceof all forms of power supply circuits are used for any circuit, have the sameworking principle but only a different application.