POT 73 Membrane Keyboard POT 73 H&B Contronic

POT 73 Membrane Keyboard POT 73 H&B Contronic

POT 73 Membrane Keyboard is a kind of membrane keyboard, and its working principle is different from the traditional mechanical keyboard. Membrane keyboard usually consists of three layers: top layer (or membrane), middle layer (or spacer layer) and bottom layer (or circuit board). The top layer is a thin and flexible film with symbols or letters on it, which is made of soft plastic material and sensitive to pressure. The middle layer is a thin layer of plastic or rubber, which is used to separate the top layer and the bottom layer until the user presses the key. The bottom layer is a thin printed circuit board with electrical contacts or switches on it.

The working principle of this keyboard is that when the user presses the key, the conductive traces on the top and bottom layers will contact, thus forming a current in the circuit. This design makes the membrane keyboard have the advantages of low cost, simple structure and convenient maintenance. In addition, the membrane keyboard can be designed to have various functions, such as LED indicator, brightness sensor, control electronics and so on.

POT 73 Membrane Keyboard is a keyboard based on membrane structure, which realizes signal transmission through the contact of conductive traces at the top and bottom. It is suitable for many application scenarios, such as hospital equipment, engineering control, telephone system and household appliances.