Output value digital display of electronic potentiometer module

Abstract

The invention relates to output value digital display of an electronic potentiometer module, which adopts the combination of a digital display device and a universal electronic potentiometer module to form a digital-display electronic potentiometer module. The output value digital display can accurately display two signals output by the universal electronic potentiometer module: 1, a digital signal of a BCD (Binary Coded Decimal) code or a binary code output from a counter; 2, an analog voltage signal output from TL431 and an analog resistance signal output from a resistance network. Display digits adopt a two-digit, a three-digit, a four-digit and a five-digit according to functions and use requirements of the electronic potentiometer module. The output value digital display can combine with the universal electronic potentiometer module into a whole through the following three formation modes of: (1) using discrete elements and a small scale integrated circuit; (2) using singlechips, such as AT89C2051, and the like as cores; and (3) integrating integrative function components.

Description

Technical field [0001] The present invention combines the digital display device and the universal electronic potentiometer module to make it an electronic potentiometer module with digital display, and as a complete new electronic device, it can be directly applied to various electronic fields. Background technique [0002] Mechanical potentiometers have been used for nearly a hundred years. Mechanical potentiometers have many disadvantages such as mechanical wear, fear of vibration, low precision, and frequent actions are easy to damage. DIP switches and resistor networks can also form potentiometers, but there are mechanical breakpoints. It cannot be used in many cases where there is a continuous requirement for the change of resistance. In many applications, in order to know exactly the position of the mechanical potentiometer arm, there are mechanical potentiometers with scales, straight slide potentiometers and digital mechanical potentiometers composed of dial switche...

AI Technical Summary

Problems solved by technology

[0002] Mechanical potentiometers have been used for nearly a hundred years. Mechanical potentiometers have many disadvantages such as mechanical wear, fear of vibration, low precision, and frequent actions are easy to damage. DIP switches and resistor networks can also form potentiometers, but there are mechanical breakpoints. It cannot be used in many cases where there is a continuous requirement for the change of resistance

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