Parallel current gathering system and method

A current and current sampling technology, applied in the direction of circuit devices, electrical components, etc., can solve the problems that cannot be collected in real time, and achieve the effect of high reliability and simple connection

Pending Publication Date: 2022-05-06
ILD ELECTRONICS CO LTD
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  • Description
  • Claims
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Problems solved by technology

This method solves the problem of interference in transmission, but it takes a certain amount of time for AD

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  • Parallel current gathering system and method
  • Parallel current gathering system and method
  • Parallel current gathering system and method

Examples

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Example Embodiment

[0023] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and provides a detailed implementation manner and a specific operation process, but the protection scope of the present invention is not limited to the following implementation. example.

[0024] like image 3 As shown, take a parallel system composed of n electronic devices as an example (n can be understood as at least 2). Electronic devices can be electrical and electronic test and measurement instruments such as power supplies or electronic loads. When testing the object to be tested, these devices usually need to be used in parallel according to power requirements or working conditions, and the parallel operation involves current summarization and current sharing. and other important electrical performance indicators. The electronic equipment includes a power unit, a control unit, a current sampl...

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Abstract

According to the parallel operation current gathering system and method, each electronic device of the system comprises a control unit, a power unit, a current sampling unit and a parallel operation signal unit, the power unit is connected with an object to be tested, the control unit controls the power unit to output or suck current to the object to be tested, and the current sampling unit is connected with the parallel operation signal unit. The current sampling unit samples current output or sucked by the power unit to an object to be detected and sends current sampling signals to the control unit and the parallel operation signal unit, and the current sampling signals are converted by the parallel operation signal unit and output parallel operation current summarized signals. The parallel operation signal unit is provided with a parallel operation current signal I + end and a parallel operation current signal I-end, the parallel operation current signal I + ends of all the electronic devices are connected with one another, and the parallel operation current signal I-ends of all the electronic devices are connected with one another. According to the invention, the actual current value output or sucked by the actual load or the power supply is represented in a current form, and the total current can be obtained in real time by each machine in the parallel operation system at the same time.

Description

technical field [0001] The invention relates to the technical field of electronic equipment for measurement and testing, and in particular to a parallel current summarization system and method. Background technique [0002] In systems such as electronic loads or power supplies, the current signal is usually converted into a voltage signal through a high-precision resistor shunt and a high-precision differential amplifier. Devices such as electronic loads or power supplies sample the voltage signal into the system through the ADC (Analog-to-Digital Converter), and after internal calculations, the actual current value is obtained, specifically as figure 1 shown. [0003] In a multi-machine parallel system such as electronic loads or power supplies, there are roughly two methods for summarizing the current of each machine: analog signal summarization and digital communication. [0004] 1. In the analog mode, a resistor is usually added to the output voltage of the differentia...

Claims

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Application Information

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IPC IPC(8): H02J13/00
CPCH02J13/00032H02J13/00006
Inventor 不公告发明人
Owner ILD ELECTRONICS CO LTD
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