Introduction to the basic electrical ...

Introduction to the basic electrical schematic. For beginners.A basic electrical schematic is a full graphical representation of components connected into an electric circuit. It serves to demonstrate the working principle of a radio-electronic device.Basic electrical schematics contain the graphic symbols semiconductor elements, their interconnection, and the operation mode of each component.What are the main functions of a basic electrical schematic?First of all, it gives a full and detailed description of a particular device. By studying the symbols of the components we can build the device described in the schematic. We can also learn some general information and understand the working principle. All this data is extremely useful when repairing or making improvements to electronics. And of course the basic electrical schematic is necessary to assemble and mount any device. It's not very hard to learn how to read basic electrical schematics. However, first you will need to study the symbols representing electric components, their names, how they relate to each other, their graphic representations, schematic symbols, as well as the corresponding functions in a device.Schematic symbols include electrical connections, sockets, switches, feed connection circuits, polarity, as well as other components used in a device.Let's try to read a basic electrical schematic and learn how it works.Let's take, for instance, the schematic of a simple power supply. We'll start from the beginning.The input circuit of the power supply includes a step-down power transformer. It transforms the voltage in the main, i.e. lowers it. This is necessary for feeding the circuit. There are also some other components such as the common power switch and the protector. The latter is used to cut off the power supply of the transformer, for example, in case of voltage surges in the main. Another case is any unpredictable changes in the operating mode of the secondary power supply circuit.The voltage at the secondary winding of the power transformer is about 12-15 V AC. It is applied to the diode bridge and serves to rectify and filter it. Capacitor C1 helps it with this task.Voltage stabilisation is an important parameter of a power supply. Unstabilised voltage is applied to the transistor's commutator, VT1 and the voltage-reference diode. The latter is chosen in accordance with the total voltage necessary to achieve at the output of the power supply.Resistor R1 serves to set the ...

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Science & Technology

[TheLightningStalker]

Get a Forrest Mims book instead of trying to understand this mess. Great example of how not to teach something.

[Poseidon99Jeus]

Please, do u know a website with all the functions of the components in a radio?