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Program control voltage regulation circuit capable of replacing manual voltage regulation through rotary knob

A manual knob and circuit technology, applied in the direction of program control, control/regulation system, computer control, etc., can solve the problem that the speed and time point cannot meet the requirements of automatic test instruments, the instrument cannot measure voltage completely independently, and the manual knob cannot realize automatic measurement. voltage instruments and other problems, to achieve the effect of good accuracy, high resolution, and no relays

Inactive Publication Date: 2017-02-08
青岛时创智能技术有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] Traditional instrument voltage regulation needs to be mediated by manual knobs, which requires the participation of personnel. The voltage value of the measured object is changed by manually adjusting the resistance value of the potentiometer, which makes the instrument unable to completely independently complete the measurement voltage. It is impossible to satisfy when and how much the automatic test instrument needs to adjust the voltage and the time point. In short, the manual knob cannot realize the design of an automatic voltage measurement instrument

Method used

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  • Program control voltage regulation circuit capable of replacing manual voltage regulation through rotary knob
  • Program control voltage regulation circuit capable of replacing manual voltage regulation through rotary knob

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0018] combine Figure 1-Figure 2 , this embodiment includes a 485 communication unit, a microprocessor unit, a resistance switching circuit unit and a voltage dividing unit, the microprocessor unit is connected to the 485 communication unit and the resistance switching circuit unit by electrical signals, and the resistance switching circuit unit is connected to the electrical signal Voltage divider unit. The resistance switching circuit unit includes dual 4-to-1 analog multi-way switches, the four data input terminals of the two 4-to-1 analog multi-way switches are connected in parallel, one output is connected to the amplifier to form a current loop, and one output is used as a voltage output to connect to the voltage dividing unit . The voltage dividing unit includes two parallel multiplying DAC chips, and the two DAC chips are connected in a weighted ...

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Abstract

The invention provides a program control voltage regulation circuit capable of replacing the manual voltage regulation through a rotary knob. The circuit comprises a 485 communication unit, a microprocessor unit, a resistance switching unit, and a voltage dividing unit. The microprocessor is respectively in electric signal connection with the 485 communication unit and the resistance switching unit, and the resistance switching unit is in electric signal connection with the voltage dividing unit. The circuit is relatively small in size, is high in resolution, is high in accuracy, and can be conveniently used in an automation testing circuit system.

Description

technical field [0001] The invention relates to a program-controlled voltage-regulating circuit capable of replacing manual knob voltage-regulating, in particular to an automatic voltage-regulating circuit that uses microprocessor program control to replace manual knob-regulated voltage. Background technique [0002] Traditional instrument voltage regulation needs to be mediated by manual knobs, which requires the participation of personnel. The voltage value of the measured object is changed by manually adjusting the resistance value of the potentiometer, which makes the instrument unable to completely independently complete the measurement voltage. It is impossible to meet when and how much the automatic test instrument needs to adjust the voltage and the time point. In short, the manual knob cannot realize the design of an automatic voltage measurement instrument. Contents of the invention [0003] The purpose of the present invention is to provide a circuit that can re...

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/21006
Inventor 徐月文
Owner 青岛时创智能技术有限公司
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