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The noise of the resistor is often ignored, but it is very important to the audio equipment. The resistance noise is generally only audible to the millivolt amplifier. Therefore, many people advocate the use of metal film resistors in many audio equipments, mainly in terms of noise, stability and accuracy. Because the stability of carbon film resistors is not as good as metal film resistors, it is less used in audio equipment. , that sound resistor selection we usually need to pay attention to the following points. 1. Preampl...
Date：2018-12-19 [More+]
Current sense resistors play an important role in the circuit. Our familiar battery management system and power management system use a large number of current sense resistors to feed back the current signal, so that other controllers can further control the circuit. In this process, the current sense resistor precision is extremely important. The battery management system on new energy vehicles has a very large impact on the safety of the entire vehicle, and all of them attach great importance to current sensing resistors. W...
Date：2018-12-18 [More+]
The use of resistors in audio has been around for a long time, and high-quality sound is often determined by the resistors inside it. A high-quality resistor allows the sound to play the most beautiful sound, and on the contrary it can give off annoying noise. First-class audio brands are generally produced with high-end precision resistors, ensuring that the sound effects are not affected by the resistance noise. Among these resistors, Microhm resistors can achieve this effect. We all know that resistors generate noise in th...
Date：2018-12-18 [More+]
The use of electronic components in circuits is very common, and it is inevitable that circuit faults will occur due to circuit problems during long use. Line detection often encounters many problems in the maintenance of electronic products. Usually, the circuit is checked with a multimeter, and the resistance value of the resistor indicated by the multimeter is used to judge whether the line is normal. Usually we will connect the two test leads of the multimeter to the starting point of the control circuit. After turning on...
Date：2018-12-18 [More+]
Adjustable resistors are one of our common resistors. In the past, when we did experiments, we usually slide the rheostat to adjust the brightness of the light. This sliding resistor is also a kind of adjustable resistor. Adjustable resistors are very important in some areas and are typically used where it is necessary to adjust the circuit current or to change the resistance of the circuit. The characteristics of the signal generator can be changed by means of an adjustable resistor, which is often seen on the motor, which c...
Date：2018-12-17 [More+]
Resistance measurement can be applied in many places. In the electrical line maintenance, the resistance measurement method can also quickly find out the circuit failure. Generally, we use resistance measurement methods such as voltmeter-amperometry, resonance method, ohmmeter method, DC bridge method, digital ohmmeter method, etc., and the most commonly used method for measuring resistance in electrical circuit control failure is the method of measuring resistance. First, the resistance measurement method to determine the co...
Date：2018-12-17 [More+]
The electric motor is one of the most commonly used equipment. Whether it is industrial production or daily life, the electric motor always appears next to us. Motors are usually divided into DC motors and AC motors according to different power sources. Most of the motors in power systems are AC motors, synchronous motors or asynchronous motors. When we use the motor, we have to mention the resistor. The resistor and the motor can be said to be in the shadow. When the motor is in use, the resistor usually acts as a step-down ...
Date：2018-12-14 [More+]
Resistivity is an important parameter of resistance. Generally, resistivity test is affected by many factors, usually temperature environment, test environment and voltage have great influence on resistivity. In order to get accurate resistivity, engineers are controlling the environment and temperature, so what is the important effect of voltage on resistivity? Let us analyze it below. First, we understand that the resistivity of dielectric materials generally cannot be kept constant over a wide range of voltages, in which c...
Date：2018-12-14 [More+]
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