AC and DC superposition test device

A test device, AC and DC technology, applied to measuring devices, measuring electrical variables, measuring current/voltage, etc., can solve problems such as current sensor saturation

Active Publication Date: 2020-02-18
CHROMA ATE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an AC-DC superposition test device, so as to reduce the problem that the current sensor may be saturated when a large current passes through the coil of the current sensor in the prior art

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  • AC and DC superposition test device
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  • AC and DC superposition test device

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Embodiment Construction

[0028] The detailed features and advantages of the present invention are described in detail below in the embodiments, the content of which is sufficient to enable any person familiar with the relevant art to understand the technical content of the present invention and implement it accordingly, and according to the contents disclosed in this specification and the scope of claims in the accompanying drawings, The related objects and advantages of the present invention can be easily understood by anyone skilled in the relevant art. The following examples are to further describe the viewpoints of the present invention in detail, but not to limit the scope of the present invention in any way.

[0029] Please refer to figure 1 , figure 1 According to an embodiment of the present invention, a functional block diagram of an AC-DC superposition test device is shown, as shown in FIG. figure 1 As shown, the AC-DC superposition test device 1 has an AC power supply module 10, a DC powe...

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Abstract

The invention discloses an AC-DC superimposing testing device, and the device is provided with AC and DC power module, a first isolation module, a second isolation module, and a current sensing module. The AC power module and the first isolation module are disposed on an AC circuit, and the AC power module supplies an AC source signal to a to-be-detected object. The first isolation module isolatesthe flowing of a DC source signal into the AC circuit. The DC power module and the second isolation module are disposed on a DC circuit, and the DC power module supplies a DC source signal to the detected object. The second isolation module isolates the flowing of the AC source signal to the DC circuit. The current sensing module is coupled to a current transmission path of the detected object and the DC circuit, and a current direction coupled to the DC circuit is opposite to the current direction coupled to the current transmission path. The current sensing module generates a correspondinginduction signal according to an alternating current on the current transmission path.

Description

technical field [0001] The invention relates to an AC-DC superposition test device, in particular to an AC-DC superposition test device which compensates for the DC component of the test result of a test object. Background technique [0002] In practical applications, when the power battery, high-capacity electrolytic capacitor or other components are charged or discharged with high direct current, the power battery, high-capacity electrolytic capacitor and other components will have instantaneous high-frequency AC changes. Manufacturers of battery manufacturing or application need a test device with both high DC power supply and high frequency AC power supply to measure the high frequency AC components generated by components such as power batteries and high-capacity electrolytic capacitors in a high DC environment. [0003] Such testing devices usually use current sensors to measure the current generated by the device. However, when the current generated by the element is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/00G01R15/20G01R15/16G01R15/18
CPCG01R15/16G01R15/18G01R15/20G01R19/00
Inventor 王耀南黄军卫
Owner CHROMA ATE
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