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Let’s talk about several glues commonly used for circuit boards

Several types of glue are commonly used for circuit boards: red glue, yellow glue, thermally conductive glue, silicone glue, hot melt glue, etc., which are used for fixing, insulation, or heat conduction. This article makes a summary for friends in the industry. For reference. 1. Red glue Red glue i

What is coupling? What does coupling mean in a radio amplifier circuit?

1. First, let’s talk about what coupling is? Coupling, in layman's terms, is a connection. In ancient times, coupling refers to farm tools, and by extension, it refers to two people working side by side in the farmland. In terms of amplifier circuits, it refers to two circuits. The first circui

A magical oscillation boost circuit—Overview of the Joule Thief Circuit

1. Circuit Overview Joule Thief can drain the energy of a battery, even an old battery that is usually so-called "used up". It can also continue to exert "residual heat". Therefore, it is metaphorically compared to a thief of "joules" of electrical energy

How to implement a network port circuit design?

Classification of network transformers Can be divided into two categories: a. Discrete LAN Magnetics Module; b. RJ45 Connector with Integrated Magnetics, ICMs ); Products can be divided into two categories according to customer welding type: a. Surface mount components (SMT,

Can the speed of a DC motor be controlled using a three-phase fully controlled bridge rectifier circ

Experimental principles of three-phase bridge type fully controlled rectification and DC motor speed regulation The three-phase bridge type fully controlled rectification circuit can use a trigger to control the conduction of the rectifier, thereby changing the direction and magnitude of the curren

Flyback switching power supply: RCD snubber circuit

When the MOS tube of the flyback switching power supply is turned off, the energy stored in the leakage inductance of the primary winding of the transformer cannot be transferred to the secondary winding, and the leakage inductance of the primary winding and the parasitic capacitance of the MOS tube

Multisim simulation - capacitance measurement circuit

Digital Capacitance Tester: Capacitance is an essential electronic component in electronic design. It is widely used in electronic design. There are many types of capacitance, and the values of different types of capacitance From a few pf to a few F, it is very important to clarify th

9 common senses of PCB inspection

Inspection of PCB is the time to pay attention to some details in order to be more prepared to ensure the quality of product, when inspecting PCB , we should pay attention to the following 9 little common sense.01 9 Common Senses for PCB Inspection1. It is strictly forbidden to use grounded test equ

Several Basic Laws of Magnetic Circuit and Their Calculation

6.1. Several basic laws6.1.1 Biot-Savart lawFigure 6.1 Biot Savart's LawCurrentCurrentB generated by u>element Idl at a certain point P in space is proportional to the size of the current element Idl, and is proportional to the current element Idl to P The position vector of a point is propor

Why does the power supply cause the inductor to make a ticking sound when the load is short-circuite

Fourth, basic switching power supply topology analysisFor switching power supply topology: inductor, switching tube The node between the diode and the diode is called the switching node; after the current flows into the node from the inductor, it can either flow out of the diode or the switch tube (