Electromagnetic generation interference analyzer for integrated circuit

Abstract

The invention discloses an electromagnetic generation interference analyzer for an integrated circuit. The electromagnetic generation interference analyzer comprises an electrostatic discharge module,a fast group pulse module, a radio frequency conduction generation module and a communication interface. The output end of the electrostatic discharge module is connected with the input end of the fast group pulse module, the output end of the fast group pulse module is connected with the input end of the radio frequency conduction generation module, and the output end of the radio frequency conduction generation module is connected with the input end of the communication interface. The radio frequency conduction generation module comprises a signal generator, a power amplifier, a coupling network and an IC end, and the output end of the signal generator is connected with the input end of the power amplifier. According to the electromagnetic generation interference analyzer for an integrated circuit, through the design of the electrostatic discharge module and the fast group pulse module, the analyzer can adopt a special power supply mode, the actual output voltage of the analyzer canbe gradually increased from 0V, more test levels can be realized, and the power supply voltages of different tested products can be met.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to an integrated circuit electromagnetic interference analyzer. Background technique [0002] Electricity is an energy source powered by electrical energy. Invented in the 1870s, the invention and application of electricity set off the second industrialization climax. It has become one of the three scientific and technological revolutions in the world since the 18th century in human history. Since then, technology has changed people's lives. The large-scale power system that appeared in the 20th century is one of the most important achievements in the history of human engineering science. It is a power production and consumption system composed of power generation, power transmission, power transformation, power distribution and power consumption. It converts the primary energy of nature into electricity through mechanical energy devices, and then supplies electricity to v...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an integrated circuit electromagnetic interference analyzer, to solve the above-mentioned background technology to propose that the existing electromagnetic interference analyzer for EMC electromagnetic compatibility has the following shortcomings, one, does not meet the test for integrated circuits, voltage It cannot be adjusted because it does not meet the EMC standard of integrated circuits. The power supply of integrated circuits is generally weak and less than or equal to 36V. In particular, the power supply voltage of some chips and their surrounding circuits is generally around 5V, so electromagnetic interference occurs The initial voltage, current and other parameters of the integrated circuit are much higher than the parameters required by the integrated circuit. When the integrated circuit (IC) is subjected to electrostatic discharge (ESD), the resistance of the discharge circuit is usually very small, which cannot limit the discharge current, and the instantaneous large The current will seriously damage the IC, the local heat will even melt the silicon die, the internal metal connection will be blown, the passivation layer will be damaged, and the transistor unit will be burned out. Second, there is no test for the IC, and it cannot be directly or indirectly Injection into the IC or the point that needs to be tested makes the test value not accurate enough

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