$\phi$ = Magnetic flux present around the core of the transformer $N_$ = Voltage across the secondary of the transformer The following figure shows a practical transformer.įrom the above figure, it is evident that a few notations are common. Usually an insulator forms the Core of the transformer. Both of these coils are wound on a core material. TransformerĪ transformer has a primary coil to which input is given and a secondary coil from which the output is collected. Though we had already gone through the concept regarding transformers in BASIC ELECTRONICS tutorial, let us have a glance over it. The block diagram of a Regulated Power supply unit is as shown below.įrom the diagram above, it is evident that the transformer is present at the initial stage. Load − The load which uses the pure dc output from the regulated output. Regulator − A voltage regulator circuit in order to control the voltage to a desired output level. Smoothing − A filtering circuit to smoothen the variations present in the rectified output. Rectifier − A Rectifier circuit to convert the AC components present in the signal to DC components. Transformer − An input transformer for the stepping down of the 230v AC power supply. Parts of a Power supplyĪ typical Power supply unit consists of the following. Let us now go through different parts which make a power supply unit. The Power supply units serve the same purpose.Ī practical Power supply unit looks as The following figure. In order to provide the required dc voltages, the incoming 230v AC supply has to be converted into pure DC for the usage. Instead one or more sections may need a 12v DC while some others may need a 30v DC. but all of those sections doesn’t need 230V AC supply which we get. There are many small sections present in the electronic devices such as Computer, Television, Cathode ray Oscilloscope etc. Any electronic device consists of a power supply unit which provides the required amount of AC or DC power supply to various sections of that electronic device. This gives an introduction to the Power supply circuits that we come across in our daily life. This chapter provides a fresh start regarding another section of diode circuits.
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