Circuit construction

1. Content

The exhibition items mainly consist of a desktop console including organic boxes (buzzers, resistors, wires, motors, lights, fans, buttons, switches, doorbells, diodes, etc.), instruction boards, etc. The instruction boards display basic circuit diagrams, and the console is equipped with multiple transparent acrylic boxes and power supplies. The transparent acrylic boxes represent basic electronic components. Visitors can simulate the formation of circuits by manually connecting the boxes and observe the effect of the circuit connections. The standardized module box has two magnetic recognition points on the side, which can attract and conduct electricity with other boxes. The power supply is placed in the box in the center of the booth, which is fixed on the booth and cannot be moved. Other components need to be connected to it for circuit paths.

2. Principle

A circuit refers to a conductive circuit composed of metal wires and electrical and electronic components, known as a circuit. The circuit through which direct current passes is called a "direct current circuit"; The circuit through which alternating current passes is called an "AC circuit".

Circuit composition: The circuit consists of four main parts: power supply, load, connecting wires, and auxiliary equipment. A device that provides electrical energy. The function of a power source is to convert non electrical energy into electrical energy. The various devices that use electrical energy in a circuit are collectively referred to as loads. The function of a load is to convert electrical energy into other forms of energy. Wire connections are used to connect power sources, loads, and other auxiliary equipment into a closed loop, playing a role in transmitting electrical energy. Auxiliary equipment is used to control, distribute, protect, and measure circuits.

The function of circuits: to achieve the transmission, distribution, and conversion of electrical energy; Realize the transmission and processing of signals.

Circuit model: In circuit analysis, in order to facilitate the analysis and research of actual electrical devices, it is usually necessary to model the actual circuit under certain conditions, that is, to use abstract ideal circuit components and their combinations to approximate the actual components, thus forming a circuit model corresponding to the actual circuit.

Current: refers to the amount of charge passing through the cross-section of a conductor per unit time. The magnitude of current is called current intensity, which refers to the amount of charge passing through a certain section of a wire per unit time. Current is divided into two types: direct current and alternating current. The direction of current that does not change over time is called direct current, while the magnitude and direction of current that changes over time are called alternating current.

3. Purpose

Exhibition items showcase relevant scientific knowledge such as circuits through the design of interesting interactive experience devices.