AG3 battery.How to wire adjustable resistors

　　Electronic enthusiasts provide you with the wiring methods of adjustable resistors. There are two ways to connect adjustable resistors: rheostat type and voltage regulating type. The former is a fixed point connected to the 0 bit, and the other fixed point is connected to the voltage, so that an adjustable voltage can be output between the 0 bit fixed point and the movable head; the latter is a fixed point and the movable head short-circuited, so that the two The relationship between the two fixed points becomes a changeable resistance. What is an adjustable resistor

　　The adjustable resistor is also called a variable resistor, and its English name is Rheostat. The adjustable resistor is a type of resistor. The resistance value of the adjustable resistor can be adjusted manually to meet the needs of the circuit.

　　Adjustable resistors can be divided into many different models and types according to the resistance value, adjustment range, adjustment form, production process, production materials, volume size, etc. They are divided into: electronic component adjustable resistors, porcelain plate adjustable resistors Resistors, chip adjustable resistors, wirewound adjustable resistors, etc.

　　The nominal value of the adjustable resistor is the maximum resistance value that can be adjusted to the standard. In theory, the resistance value of the adjustable resistor can be adjusted to any value between 0 and the nominal value. However, due to the actual structure and design accuracy requirements, etc. The reason is that it is often not easy to meet any requirement 100%, but it can basically be adjusted within the allowable range to change the resistance value.

　　Fundamental

　　Common adjustable resistors mainly change the resistance value by changing the length of the resistor connected to the circuit. For resistors that are more sensitive to temperature, the resistance value can also be changed by changing the temperature. This is called the thermistor; there are also light-sensitive resistors. Sensitive resistors, which change the resistance value by changing the intensity of light, are called photoresistors; in addition, there are varistors, gas-sensitive resistors, etc.

　　Device function

　　It can gradually change the current in the electrical appliances connected in series with it, and can also gradually change the voltage of the electrical appliances connected in series with it, and can also play a role in protecting the electrical appliances. In experiments, it also plays a role in obtaining multiple sets of values. Due to the structure and use of variable resistors, the failure rate is significantly higher than that of ordinary resistors. Variable resistors are usually used in small-signal circuits, and large-signal variable resistors are also used in a few situations such as tube amplifiers.

　　How to connect common adjustable resistors is a detail that we should pay attention to during work. To know how to connect them, we must understand the principle of adjustable resistors, so that we can be more accurate during the connection process. During the connection process of the adjustable resistor, a thorough analysis of the main factors affecting the negative value of the adjustable resistor is required, because it is necessary to have a fresh understanding and grasp of the values in the circuit when connecting, so as not to cause the adjustable Unnecessary malfunctions occur during use of the resistor. Today we will briefly describe the connection method of the adjustable resistor. The specific content is as follows:

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