Basic characteristics and main uses of the circuit diagram - Database & Sql Blog Articles

Single Chip Microcomputer STM32L151CCU6

Photocoupler

A circuit diagram is a visual representation that organizes electrical components using standardized symbols and shows their connections in the order of operation. It provides a clear view of how different parts of a system are interconnected, without considering their physical placement.

Here's an example of a circuit diagram that illustrates the power supply, control, and interlocking systems for a compressor, motor M1, and fan motor M2. This diagram has several key features:

(1) The diagram is divided into two main sections: the main circuit and the auxiliary circuit. The main circuit is drawn based on the flow of energy (current), showing how power moves from the fuse through the contactor to the motor. The auxiliary circuit is arranged according to the sequence of actions, representing the functional relationships between components.

(2) The main circuit is typically laid out vertically, while the auxiliary circuit is shown horizontally, making it easier to follow the signal flow and control logic.

(3) A table is included that lists all the components used in the circuit along with their technical specifications, which helps in identifying and understanding each part.

This type of diagram serves multiple purposes. First, it allows for a detailed understanding of how the system works, which is essential for analyzing and calculating circuit performance. Second, it acts as a reference when creating wiring diagrams or schematics for installation. Finally, it provides critical information for troubleshooting and diagnosing issues during maintenance.

Whether you're designing a new system or working on an existing one, a well-drawn circuit diagram is an invaluable tool. It ensures clarity, improves communication among engineers, and simplifies the entire development and maintenance process.