Variation characteristic of output value of universal electronic potentiometer module

Abstract

The variation characteristic of the module output value of a general electronic potentiometer module means the output characteristics of linear variation, index (cologarithm) variation, logarithmic variation and arbitrary variation according to the regulation of applied mathematics through a method of changing the resistance of a resistance network; the output characteristic can be realized in an adjustable resistance output mode and a potentiometer output mode of the general electronic potentiometer, and in the following three structure generation modes which are as follows: 1) using a discrete component and a small-scale integrated circuit; 2) using a singlechip, such as AT89C2051 and the like as a core matched with programmed control; and 3) integrating integrated components of all control circuits.

Description

Technical field [0001] The universal electronic potentiometer module is a new concept and complete potentiometer device composed of all electronic components. It can be used as a multi-functional precision electronic potentiometer directly in various electronic fields, replacing traditional mechanical potentiometers. The invention carries out various regular collocations on the resistance value of the output network of the device, so that the change of the output value of the general electronic potentiometer module has various output characteristics, so as to better expand its practical application range. This technology belongs to electronic components field. Background technique [0002] Mechanical potentiometers have been used for nearly a hundred years. Mechanical potentiometers have mechanical wear, are afraid of vibration, and are easily damaged by frequent actions. Dial switches and resistor networks can also form potentiometers, but there are mechanical breakpoints. ...

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Problems solved by technology

[0002] Mechanical potentiometers have been used for nearly a hundred years. Mechanical potentiometers have mechanical wear, are afraid of vibration, and are easily damaged by frequent actions. Dial switches and resistor networks can also form potentiometers, but there are mechanical breakpoints. Cannot be used in case of continuous requirement, essentially a digital mechanical potentiometer

[0003] There is a digital potentiometer integrated chip, but it requires a large number of peripheral circuits and secondary design to realize the complete function of the potentiometer. Because the output resistor network is integrated in the chip, it is subject to many restrictions and almost no expansion functions. Its application has great potential. In addition, the output of this digital potentiometer integrated chip is all linear

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