Function of capacitance in PCB layout

Filter capacitor: It is used in power supply rectifier circuit to filter AC component and make output DC more smooth. Decoupling capacitance: It is used in the place where there is no need for communication in the amplifier circuit to eliminate self excitation and make the amplifier work stably Bypass capacitance: When there is resistance […]

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Detailed explanation and analysis of capacitor function and Application

Capacitor is the most common device in circuit design, and it is one of the passive components. In short, the active component is the device that needs energy (electricity) source, which is called active component, and the device that does not need energy (electricity) source is passive component. Capacitors also often play an important role […]

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Characteristics and advantages of dmm6500 in automatic test system

At present, dmm6500 is widely used in the automatic test system to measure the electrical parameters of products, so as to ensure the consistency and compliance of products. Today we are going to unlock the “magic power” of dmm6500. Outstanding cost performance At the same price, dmm6500 can perform a wide range of measurement including […]

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Capacitance connection method of three phase motor to single phase motor

Many people do not believe that three-phase motor can be changed to single-phase operation, in fact, just add two capacitors, star and triangle are similar. For the common single speed three-phase motor, whether it is star connection or triangle connection, it is not necessary to remove the internal connector of the motor winding, but only […]

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Research and solution of capacitive load stability

In view of the problems caused by the phase shift (or delay) in the feedback path, we have been pursuing the stability of the operational amplifier. From last week’s discussion, we know that the stability of capacitive load is a thorny problem. The “trouble maker” op amp open-loop output resistor (RO) is not actually a […]

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Double capacitor connection of single phase motor_ Wiring diagram of single phase double value capacitor asynchronous motor

Single phase double capacitor motor is called single-phase double value capacitor asynchronous motor, which belongs to the principle of capacitor phase separation. This is a high torque single-phase motor. The circuit of this motor is connected with starting capacitor and running capacitor respectively. It is widely used in agricultural electrical appliances and daily electrical appliances. […]

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Capacitance of circuit concept

1、 Preface My son has a crazy obsession with circuit boards. Every weekend when he works overtime, he always asks me to take him to the company, just to have a look at the circuit boards and the circuit welding process. In order not to affect the work, I can only find some old circuit […]

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Overview of 51 single chip microcomputer

What is single chip microcomputer? Before learning, we must understand what this thing is, how to use it, and why it can be used in this way. Understand these three problems, then 51 MCU can learn very well. Comparison of single chip microcomputer Here, only 8051 and 8052 are compared Model flash (ROM) ram I […]

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Interpretation of circuit model and circuit law of resistive circuit

1-1 circuit and circuit model Load: resistance element, capacitance element, inductance element Power supply: power supply components, controlled power supply The circuit consists of three links: power supply, load and the intermediate link connecting the two links, namely the wire Circuit: the path of current flow Circuit theory is based onsimulationBased on the concept of […]

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