The role of the winding resistance:
The winding resistor is made of nickel-chromium or manganese copper wire, and the copper wire is made from the ceramic tube. The winding resistor is characterized by extremely high resistance. The noise is small in operation, stable and reliable, can withstand high temperature, still working properly at 170 ° C at ambient temperature. But it is large, the resistance is lower, mostly below 100kΩ. In addition, due to structural reasons, its distributed capacitance and inductance coefficient are relatively large, and cannot be used in high frequency circuits. Such resistors are typically used for buck or load in high power circuits.
The wire winding resistance is made of a resistor wire on the insulating skeleton, which is generally made of a medium having a certain resistivity such as nickel chromium, manganese copper. The winding resistor is mainly used to play buck, shunt, load, feedback, transfer, matching, etc. in low frequency AC circuits, or act as an absorber and voltage divider in the power supply circuit, or Loop and transformers inner attenuation adjustment and splitter in the pulse formation circuit. In addition, the discharge and fire flowers of the filter stage capacitor can also be used in the rectifier. At the same time, it can be widely used in home appliances, medical equipment, automotive industries, railways, aviation, military equipment instruments and other fields.