Resistors are an indispensable electronic component in metal metal keyboard circuit boards. They are not only widely used, but also used many times in metal keyboards. The following is a brief introduction to the knowledge of resistors used in metal keyboards.
1. The role of resistance
The definition of resistance refers to electronic components that are made of metal or non-metal materials with resistance characteristics and are easy to use and install. Usually represented by R. The function is to block the flow of current. The functions on the metal keyboard can be roughly summarized into several functions, such as reducing the voltage, distributing the voltage, limiting the circuit current, and providing the necessary working conditions (voltage and current) to various electronic components.
2. Resistance and classification
The classification of resistors can be classified according to their structure, generally divided into two categories: fixed resistors and semi-adjustable resistors. The metal keyboard contains these two types of resistors, and the number of fixed resistors is relatively large, and the resistance value is also marked on the resistor.
3. Calculation of resistance value
For fixed resistors, you can see the size of the resistance value by looking at the numbers. In addition, it needs to be calculated by observing the color. It is necessary to understand the rules of color circle color point notation to calculate correctly. The specific rules are shown in the figure above.
The above is a simple understanding of resistors in metal keyboards, and we will also take you to understand other components in depth.
