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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/adjustment systems, instruments, etc., can solve the problems of adjustment accuracy and adjustment time, waste of human resources, poor anti-interference performance, etc., to achieve saving Manpower, reduced adjustment time, low cost effect

Inactive Publication Date: 2007-10-10
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] As shown in Figure 1, the present invention consists 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 current fine adjustment part includes a fine adjustment voltage regulator T2 and a corresponding second servo motor M2, a fine adjustment control circuit, a current sensor S2, and an output transformer T3, wherein: the output shaft of the first servo motor M1 and the coarse adjustment voltage regulator The sliding end of T1 is connected, and the output shaft of the second servo motor M2 is connected with the sliding end of the fine-adjusting voltage regulator T2; the two ends of the coil of the coarse-adjusting voltage regulator T1 are connected to AC 220V, and the sliding output end is connected to the fine-adjusting voltage regulator One end ...

Embodiment 2

[0035] The difference from Example 1 is:

[0036] As shown in Figure 3, the present invention is attached detection circuit, and its output signal communicates with host computer, informs host computer whether the present invention system is adjusted (comprising two parts of coarse adjustment, 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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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/147
Inventor 宋克威张辉刘付军王玉山
Owner SHENYANG SIASUN ROBOT & AUTOMATION