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Analogue alternating current constant current source

An AC constant current source, analog technology, applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve the problems of adjustment accuracy and adjustment time, waste of human resources, poor anti-interference performance, etc., to save The effect of manpower, reduced adjustment time, and low cost

Inactive Publication Date: 2004-03-03
SHENYANG SIASUN ROBOT & AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, on the one hand, human resources are wasted, on the other hand, its adjustment accuracy and adjustment time are also greatly affected by human factors, and the anti-interference performance is poor, so it cannot meet the requirements of some occasions that require high AC constant current. need

Method used

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  • Analogue alternating current constant current source
  • Analogue alternating current constant current source
  • Analogue alternating current constant current source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, the present invention is composed of a two-stage adjustment part of voltage coarse adjustment and current fine adjustment, wherein the voltage coarse adjustment part includes a coarse voltage regulator T1 and a corresponding first servo motor M1, a coarse adjustment control circuit, and a voltage sensor S1; The adjustment part includes the fine adjustment voltage regulator T2 and the corresponding second servo motor M2, the fine adjustment control circuit, the current sensor S2, and the output transformer T3, wherein: the output shaft of the first servo motor M1 and the slide of the coarse adjustment voltage regulator T1 The output shaft of the second servo motor M2 is connected to the sliding end of the fine-tuning voltage regulator T2; the two ends of the coil of the coarse-tuning voltage regulator T1 are connected to AC 220V, and the sliding output terminal is connected to the coil of the fine-tuning voltage regulator T2 One end of the fine...

Embodiment 2

[0035] The difference from Example 1 is:

[0036] Such as image 3 As shown, the present invention is equipped with a detection circuit, and its output signal communicates with the host computer to inform the host computer whether the system of the present invention has been adjusted (including coarse adjustment and fine adjustment), and whether there is current output.

[0037] Whether the system has been adjusted means whether the steady-state error after system adjustment is within the allowable range, and the steady-state error of the system is the output of the output current controller 1 under the steady-state situation, so the present invention uses a detection circuit to detect Check this output.

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PUM

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Abstract

A simulative AC constant current source is composed of a rough voltage regulator consisting of rough voltage regulator, the first servo motor, controller and voltage sensor, and a fine current regulator consisting of fine votage regulator, the second servo motor, controller, current sensor and output transformer. Its advantages are high regulation accuracy and high anti-interference power.

Description

technical field [0001] The invention relates to an AC constant current device, in particular to an analog AC constant current source. Background technique [0002] At present, the AC constant current regulation equipment mostly adopts manual regulation. Generally, it is powered by an autotransformer, and a current detection device is installed in the circuit. People adjust the output voltage of the autotransformer in real time according to the observed current to keep the output current constant. In this way, on the one hand, human resources are wasted, on the other hand, its adjustment accuracy and adjustment time are also greatly affected by human factors, and the anti-interference performance is poor, so it cannot meet the requirements of some occasions that require high AC constant current. need. Contents of the invention [0003] In order to overcome the above shortcomings, the object of the present invention is to provide an analog AC constant current source with h...

Claims

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Application Information

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IPC IPC(8): G05F1/147
Inventor 宋克威张辉刘付军王玉山
Owner SHENYANG SIASUN ROBOT & AUTOMATION