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Power control method and device based on variable load circuit, and variable load circuit

A technology of load power and power control, applied in the direction of control/regulation system, regulation of electrical variables, instruments, etc., can solve the problem of reducing test efficiency and achieve the effect of improving test efficiency

Active Publication Date: 2022-07-05
KEHUA DATA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The defect of the existing technology is that before testing each power section of the electrical system under test, the tester needs to recalculate and rebuild a load circuit with a new resistance value, which reduces the efficiency of the test

Method used

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  • Power control method and device based on variable load circuit, and variable load circuit
  • Power control method and device based on variable load circuit, and variable load circuit
  • Power control method and device based on variable load circuit, and variable load circuit

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Experimental program
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Effect test

Embodiment 1

[0057] The present application provides a power control method based on a variable load circuit. The variable load circuit is used to connect to a system under test. The variable load circuit includes a plurality of resistors and switches corresponding to the resistors one-to-one. The switches are used to connect to a system under test. Control the on or off of the corresponding resistance to change the power of the above-mentioned system under test, and each switch is independently controllable;

[0058] In the embodiment of the present application, the above-mentioned system under test is the electrical system under test; such as figure 2 As shown, the above load variable circuit may include: several resistors 201 connected in series with each other and switches 202 in one-to-one correspondence with the resistors 201 and in parallel, the switches 202 are used to control the on or off of the corresponding resistors 201, and each switch 202 Independently controllable; such as...

Embodiment 2

[0086] The present application also provides another power control method based on a variable load circuit. The variable load circuit is used to connect the system under test. The variable load circuit includes: a plurality of resistors and switches corresponding to the resistors one-to-one. The switches It is used to control the on or off of the corresponding resistance to change the power of the above-mentioned system under test, and each switch is independently controllable, such as Figure 4 As shown, the above power control method includes:

[0087] Step 401, obtaining expected load power;

[0088] Step 402, compare the magnitude relationship between the currently obtained expected load power, the maximum adjustable load power, and the minimum adjustable load power, wherein the maximum adjustable load power is the minimum resistance value corresponding to the combination of the above-mentioned several resistors. Load power, the above-mentioned minimum adjustable load pow...

Embodiment 3

[0119] The present application also provides a power control device based on a variable load circuit, such as Figure 5 As shown, the load variable circuit is used to connect the system under test, and the load variable circuit includes: a plurality of resistors and switches corresponding to the resistors one-to-one, and the switches are used to control the on or off of the corresponding resistors to change the above The power of the system under test, and each switch is independently controllable, such as Figure 5 As shown, the power control device 50 includes: an acquisition unit 501, a comparison unit 502 and a control unit 503;

[0120] The obtaining unit 501 is used for: obtaining the expected load power of the system under test;

[0121] The comparison unit 502 is used for: comparing the magnitude relationship between the currently obtained expected load power, the maximum adjustable load power and the minimum adjustable load power, wherein the above-mentioned adjustab...

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Abstract

The present application provides a power control method based on a variable load circuit, a related device, and a variable load circuit, which relate to the technical field of circuit control. The power control method obtains the expected load power of the system under test; compares the magnitude relationship between the currently obtained expected load power, the maximum adjustable load power and the minimum adjustable load power; and determines the current target code based on the magnitude relationship. The current target code controls the on-off of each switch in the variable load circuit, which realizes the technical effect that the load can be adaptively changed according to the expectation so that the system under test can output the required power, and the efficiency of testing the system under test is improved.

Description

technical field [0001] The present application relates to the technical field of circuit control, and in particular, to a power control method and device based on a variable load circuit, and a variable load circuit. Background technique [0002] During the testing process of an electrical system (such as an uninterruptible power supply system) before leaving the factory, the tester needs to control the electrical system to output different power segments (10%, 20%...90%, 100%) to obtain the corresponding electrical indicators. [0003] In the prior art, firstly, when testing the electrical system, the tester needs to perform a certain calculation according to the output power segment; secondly, the tester needs to select a plurality of resistors based on the calculation result to connect them in series and parallel to form a structure with all the The load circuit that needs resistance value, and the load circuit is used as the load of the electrical system under test. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/66
CPCG05F1/66
Inventor 张蓬勃杨楠洪开慧
Owner KEHUA DATA CO LTD