High-current electric fast transient pulse group immunity test device and method

Abstract

The invention discloses a high-current electric fast transient pulse group immunity test device. The device comprises a power supply device, a voltage line isolation transformer, a wiring terminal, apulse line coupling device, an electric fast transient pulse group test signal generator and equipment under test. The input port of the equipment under test is connected with the output port of the wiring terminal; the input port of the wiring terminal is connected with the output port of the voltage line isolation transformer; the input port of the voltage line isolation transformer is connectedwith the output port of the power supply device; the input port of the wiring terminal is also connected with the output port of the pulse line coupling device; the input port of the pulse line coupling device is connected with the output port of the electric fast transient pulse group test signal generator; and the pulse group test signal generator is grounded. The limitation of the current of acoupling decoupling network on the scheme in the prior art is eliminated, the device is convenient and speedy, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of immunity detection, in particular to a high-current electrical fast transient pulse group immunity test device. Background technique [0002] Electrical fast transient burst immunity is to verify the immunity of electrical and electronic equipment to various types of transient disturbances such as from switching transients (cutting inductive loads, relay contact bounce, etc.). The test method for the power port of the device is that the device is powered by a coupling and decoupling network, and then the transient pulse interference is input at the output end of the coupling and decoupling network. [0003] The existing coupling and decoupling network generally has a working current of 16A. With the increase of equipment power, the operating current of the equipment under test exceeds the current limit of the coupling and decoupling network. Therefore, the equipment under test cannot be tested and can onl...

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Problems solved by technology

[0003] The existing coupling and decoupling network generally has a working current of 16A. With the increase of equipment power, the operating current of the equipment under test exceeds the current limit of the coupling and decoupling network. Therefore, the equipment under test cannot be tested and can only be designed A new type of coupling and decoupling network with high current flow is used for interference testing, which will use a lot of manpower and material resources, increase the cost of testing, and more such high-current working equipment may appear in the future , the requirements for this aspect will gradually increase

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