Circuit diagram components:
Circuit diagrams are composed of four main parts: component symbols, connecting lines, junctions, and comments.?
1, component symbols represent components in an actual circuit, which are not necessarily similar or even completely different in shape from the actual components. But it generally indicates the characteristics of the component, and the number of pins are consistent with the actual component.?
2, the line represents the actual circuit in the wire, in the schematic diagram, although a line, but in the commonly used printed circuit board is often not a line but a variety of shapes of the copper foil block, like the radio schematic diagram of the many connecting lines in the printed circuit board diagrams are not necessarily linear, but can also be a certain shape of the copper film.?
3, junction represents several components or several wires connected to each other. All and junction connected to the component pins, wires, regardless of the number, are conductive.?
4, notes in the circuit diagram is very important, all the text in the circuit diagram can be categorized as notes - class. A closer look at the above diagrams will find that in the circuit diagrams of the various places there are notes exist, they are used to illustrate the components of the model number, name and so on.
To learn how to read a circuit diagram, you need to understand a few concepts:
(1) First, you need to know a few laws: Kirchhoff's Laws (the basis of all circuits), Ampere's Law, and Corrugator's Law;
(2) Second, you need to know a few basic circuits: RC Circuits, RL Circuits, LC Circuits, Equivalent Circuits, Parallel Circuits, Serial Circuits, Gated Circuits, and Driver Circuits;
(3) You need to know a few basic circuits. circuits;
(3) the third is to know a few definitions: electric potential, breakdown, reverse breakdown, current source, voltage source, load, resistance value, voltage value, current value, inductance value, capacitance value, electric field, electric field value, induced electromotive force, voltage value, power, power value, rated power, rated voltage, rated current, conductivity, electric coupling, coupling, electromagnetic induction, electromagnetic field, voltage limit, current limit resistors in series and parallel, capacitors in series and parallel, power supply in series and parallel, AC power supply, DC power supply, regulated power supply, gate, drain, source, base, collector, emitter, and gate, or gate, non-gate, non-gate, and non-gate, with or without the gate, or non-gate, cascade;
(4) the fourth to know a few basic original devices: capacitors, resistors, coils, diodes, transistors, field effect tubes, bridges, voltage regulators, Fuses, crystals, jumpers, switches, switching power supply;
When the understanding of such a concept, and then the combination of theory and practice, to buy some components, their own welding, you will understand the circuit diagram more y.
Expanded information:
Literature
Unit circuits are defined as a particular stage of controller circuit, or a certain level of amplifier circuit, or a certain oscillator circuit, inverter circuit, etc., which is the smallest circuit unit capable of accomplishing a certain circuit function. From a broad perspective, an integrated circuit application circuit is also a unit circuit .
Unit circuit diagram is to learn the whole electronic circuit working principle process, the first encounter with a complete function of the circuit diagram, the concept of circuit diagrams is to facilitate the analysis of the circuit working principle of the need.
Functions
The unit circuit diagram has some of the following functions:
①The unit circuit diagram is mainly used to tell the working principle of the circuit.
②It can completely express the structure and working principle of a certain level of the circuit, and sometimes all the parameters of the components in the circuit, such as nominal resistance and transistor type.
③It is very helpful to y understand the working principle of the circuit and memorize the structure and composition of the circuit.
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