Disconnect circuit method:When the circuit of the electronic product is short-circuited, the current flowing through the circuit will be large, and the power supply circuit and the short-circuited circuit are easily burnt out. In order to quickly find the faulty circuit, the disconnection circuit me

Voltage method:The voltage method is a method of measuring the voltage in a circuit with a multimeter and determining the fault location according to the change of the voltage. The voltage method is based on the principle that the voltage tends to change when the circuit fails. The principle of volt

The varistor is generally used in parallel in the circuit. When the voltage across the resistor changes and exceeds the rated value, the internal resistance of the resistor becomes sharply small, exhibiting a short-circuit condition, and the current fuse connected in series is blown to protect. Vari

There are many types of resistors. Commonly used resistors include carbon film resistors, cement resistors, metal film resistors, wirewound resistors, etc. Special resistors include varistors, thermistors, and photoresistors. Different types of resistors have different characteristics and different

In many electronic products, high voltage ceramic capacitors are used. What is a high voltage ceramic capacitor, what function? High-voltage ceramic capacitors are wafer-shaped capacitors made of ceramic materials. The outer casing is ceramic and used for insulation. A major feature of high-voltage

In addition to the pressure and impact resistance of the film capacitor, there are temperature characteristics. Why do editors say this, and then you know, follow the editor to explore the film capacitors you don't know, let's take a look! I hope the content of this article can help everyone! The go

Low voltage booster requirements background:China's rural power grid has a large base, and it has the characteristics of long line length, long power supply distance and large loss. With the rapid development of the economy, the income of farmers' households has steadily improved, and high-power hou

The copier is an indispensable device in our office. For copiers, the role of the copier's thermistor is crucial. Once a failure occurs, it will have various effects. So what are the common faults? According to the preheating time of the copier, it can be divided into three cases. First, it is in th

The amplifying circuit, also called an amplifier, is the basic circuit that constitutes other electronic circuits, and is a circuit formed to amplify a weak signal. The amplifying circuit can be divided into low frequency, intermediate frequency and frequency modulation according to the frequency; a

The varistor has a high impedance relative to the protected electronic component. When a transient overvoltage occurs (beyond the voltage that the varistor can withstand), the varistor impedance becomes only a few ohms, causing a short circuit. The fuse is blown and the electronic components on the