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Rectificative passive type load simulation device and method thereof

A simulation device, passive technology, applied in the direction of measurement device, instrument, power supply test, etc., can solve the problems of simulation load characteristics, inability to respond to the object to be tested, etc.

Active Publication Date: 2009-10-14
CHROMA ELECTRONICS SHENZHEN
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AI Technical Summary

Problems solved by technology

Since the load signal does not refer to the voltage of the object under test, it is impossible to respond in real time to the change of the output voltage of the object under test, so it is impossible to truly simulate the actual load characteristics. The present invention is to improve this problem.

Method used

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  • Rectificative passive type load simulation device and method thereof
  • Rectificative passive type load simulation device and method thereof
  • Rectificative passive type load simulation device and method thereof

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Embodiment Construction

[0033] The present invention mainly uses digital control technology to match active electronic load modules, voltage and current measurement circuits and high-speed digital hardware equipment, such as: digital signal processor (Digital Signal Processor, DSP), analog-to-digital converter (ADC), digital Analog converter (DAC) etc. to simulate the rectification passive load circuit. Users can input the series resistance Rs, series inductance Ls, load capacitance C and load resistance R according to the requirements L The set value, real-time reference to the current voltage of the object under test, and then use digital control technology and high-speed digital hardware equipment to process and calculate the load current, and perform the action of pulling the object under test according to it. In this way, the characteristics of the actual rectifying passive component (RLC) load can be simulated, thereby achieving the purpose of reducing the volume of the load and making the oper...

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Abstract

The invention relates to a rectificative passive type load simulation device and a method thereof, which are used for testing the performance of a power supply product. The simulation device comprises an analog-to-digital converter, a digital signal processor, a digital-to-analog converter and an active type electronic load module used for replacing a passive assembly in traditional rectificative passive type load. The simulation method comprises: (S1) a plurality of passive components in rectificative passive type load are replaced by a digital control module and an active type electronic load module; (S2) a passive type load model function is established for representing the actuating relation of the passive components; (S3) the operation of the passive type load model function is performed by the digital control module to obtain a load current value, and the load current value is converted into a simulation control signal by the digital control module; and (S4) the active type electronic load module is controlled by the simulation control signal so as to perform a carrying action to the power supply product.

Description

technical field [0001] The invention relates to a rectifying passive load simulation device and method, in particular to a device and method for simulating a rectifying passive load by using an active electronic load. Background technique [0002] AC power products (AC Source), such as: uninterruptible power system (UPS) and other power supply equipment that can generate alternating current, are widely used in daily life, and its application range covers general information, communication, consumer electronics, transportation equipment, industrial In the field of equipment and military, its function is to drive each circuit unit and maintain the voltage level, which is an important factor to maintain the normal operation of the system. Therefore, the main consideration in the design of the power supply unit, in addition to cost reduction, is high reliability. [0003] The load of general AC power products is mostly business equipment, or it is no-load. The load characteris...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R31/42
Inventor 高宏祥陈文钟刘国成邹明颖
Owner CHROMA ELECTRONICS SHENZHEN
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