Electrical fast-transient test: conducted and radiated disturbance determination by a complete source modeling

Author

Cerri, Graziano ; De Leo, Roberto ; Primiani, Valter Mariani

Author_Institution

Dipt. di Elettronica e Autom., Ancona Univ., Italy

Volume

43

Issue

1

fYear

2001

fDate

2/1/2001 12:00:00 AM

Firstpage

37

Lastpage

44

Abstract

Tests against electrical fast transient/burst (EFT) represent a serious threat for modern high-speed electronics: besides the conducted injection of high amplitude pulse, a strong radiated field is produced during this test. The prediction of the effects of this test during the equipment early design stage requires the equivalent circuit of the generator: the output waveform into a resistive 50-Ω load is not sufficient to recover the complete circuit, including inductive component and parasitic elements. These are essential to predict the disturbance produced in arbitrary loads, as the equipment under test can be viewed. This paper describes how to characterize the EFT generator by means of the measurement of the output voltage and current produced in presence of known loads; moreover, a procedure to calculate the current on the equipment power cord is shown, based on the use of a circuit simulator (PSPICE). Finally, the disturbance produced on different loads and the radiated field during the test are calculated and experimentally validated

Keywords

SPICE; circuit simulation; electric current measurement; electromagnetic fields; electromagnetic interference; electronic equipment testing; equivalent circuits; transients; voltage measurement; 50 ohm; EFT generator; PSPICE; circuit simulator; complete source modeling; conducted disturbance; conducted high amplitude pulse injection; electrical burst tests; electrical fast-transient test; equipment power cord; equipment under test; generator equivalent circuit; high-speed electronics; inductive component; output current measurement; output voltage measurement; output waveform; parasitic elements; radiated disturbance; radiated field; resistive load; Character generation; Circuit simulation; Circuit testing; Current measurement; Electronic equipment testing; Equivalent circuits; High-speed electronics; Power generation; Power measurement; Voltage;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.917933

Filename

917933