1. First, engineers draw up blueprints of circuits under the guidance of Electronic Design Automation (EDA). Through careful layout, they determine the location of each electronic component, plot the wire path, and set strict specifications that lay the foundation for subsequent manufacturing. Material selection Select key PCB materials such as FR-4 glass fiber reinforced epoxy resin for its superior insulation properties and mechanical strengthTo provide a stable load bearing for the circuit. 2, the main principle of PCB is based on the interaction of circuit board and copper foil to achieve, the specific principle is as follows: circuit board: circuit board is the basis of PCB design, can be single-layer or multi-layer, usually using glass fiber, plastic or ceramic materials. These materials usually have good insulation properties and mechanical strength to ensure safety and reliability.
3, the working principle of the circuit board is to use the board based insulation material to isolate the copper foil conductive layer on the surface, so that the current flows along the pre-designed route in various components to complete such tasksPower, amplification, attenuation, modulation, demodulation, coding and other functions. The circuit board is mainly composed of solder pad, through hole, mounting hole, wire, component, connector, filling, electrical boundary and so on.
4, what is the working principle of the circuit board the working principle of the circuit board is to use the board based insulation material to isolate the surface copper foil conductive layer, so that the current flows along the pre-designed route in various components to complete functions such as work, amplification, attenuation, modulation, demodulation, coding and so on. On the most basic PCB, the parts are concentrated on one side, and the wires are concentrated on the other side. Because the wire only appears on one side, soType E electronic device or component.
An integrated circuit is a tiny electronic device or component.
Analog integrated circuits, also known as linear circuits, are used to generate, amplify and process a variety of analog signals (refers to signals whose amplitude changes with the time frontier). For example, the audio signal of a semiconductor radio, the tape signal of a tape recorder, etc.), and the input signal is proportional to the output signal. Digital integrated circuits are used to generate, amplify and process various digital signals (signals that are discretized in time and amplitude). For example, VCD, DVD playback audioSignal and video signal).
Integrated circuit application circuit diagram has the following functions: (1), it expresses the integrated circuit each pin external circuit structure, component parameters, etc., thus indicating the complete operation of an integrated circuit. (2) In some integrated circuit application circuits, the internal circuit block diagram of the integrated circuit is drawn, which is quite convenient for the analysis of the integrated circuit application circuit, but this way of expression is not much.
1. Integrated circuit technology packageIncluding chip manufacturing technology and design technology, mainly reflected in the processing equipment, processing technology, packaging and testing, mass production and design innovation capabilities.
2, refers to a large number of microelectronic components integrated on the core of a high-level microelectronic components.
3, there are two kinds of timing circuit, one is to use a resistor and a capacitor to form a charge and discharge circuit, when the capacitor is fully charged, the output circuit will turn over and become powered on or off. Or as a capacitorWhen the power is discharged, the circuit will flip over and become powered on or off. The timing time can be adjusted by adjusting the parameters of the capacitor or resistance. The other is to use a counter and an oscillating circuit.
4, new integrated circuit working principle and application New integrated circuit (IC) by integrating a variety of electronic components, such as transistors, resistors, capacitors, etc., on a semiconductor material, to achieve miniaturization and integration of electronic circuits. These components are connected together by tiny metal wires to form a complete circuit. IC applications are very wide, such as computers, mobile phones, televisions, automotive electronics and so on.
5, integrated circuit is a semiconductor integrated circuit, that is, a semiconductor material as a substrate, at least one is an active component of two or more components and part or all of the interconnect lines integrated in the substrate or substrate, to perform a certain electronic function of the intermediate product or final product; Integrated circuits are generally classified by the number of electronic components they contain, such as transistors.
6, three end fixed voltage regulator working principle: three end fixed voltage regulator IC has positive output (78 series) and negative output (79 series) two types.