Universal electronic potentiometer module

Abstract

The invention discloses a universal electronic potentiometer module. Functional circuits such as a key switch, a square generator, an accelerating circuit, a keystroke distinguishing circuit, a counter, an NPN-typed triode array with the collector open and a resistance network and the like are electrically connected to form a complete electronic potentiometer apparatus which outputs a passive power to realize the function of a common potentiometer and expand new functions. The invention has a resistance output mode and a voltage output mode, can also lead an output value to be passively adjusted or reversely adjusted; the modes and functions can lead the module to be very easily and directly connected with other various external active circuits, and are broadly applied to various electronic fields. The technical principle construction realizing method of the invention is as follow: 1) using separated elements and small scale integrated circuits; 2) using the singlechip like AT89C2051 as a core; 3) integrating the function components and elements which can be integrated.

Description

Technical field [0001] The invention uses all electronic components to form a complete universal electronic potentiometer unit, which can be directly used in various electronic fields as a multi-functional precision potentiometer to realize and expand traditional mechanical potentiometers, multi-turn potentiometers, dial switches, etc. Mechanical devices and digital potentiometer integrated chip functions. Background technique [0002] Mechanical potentiometers have been used for nearly a hundred years. Mechanical potentiometers are subject to mechanical wear, vibration, and frequent actions. They are easily damaged. Dip switches and resistor networks can also form potentiometers, but there are mechanical breakpoints. There are many changes in resistance. Cannot be used under continuous request. [0003] There is a digital potentiometer integrated chip, but it requires a lot of peripheral circuits and secondary design to realize the complete potentiometer function. Because the ou...

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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 request

[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. Since the output resistor network is integrated together, the function expansion has great limitations.

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