CISPR 22 conducted common mode voltage measurements along a wire using a capacitive voltage probe

Author

Harlacher, Bruce L. ; Stewart, Richard-W

Author_Institution

Commun. Inc., San Diego, CA, USA

Volume

1

fYear

2002

fDate

19-23 Aug. 2002

Firstpage

1

Abstract

CISPR 22 (1997) defines the limits of conducted common mode emissions (disturbances) permitted from information technology equipment (ITE) over the frequency range of 150 kHz to 30 MHz. Of significant interest are conducted common mode emissions from telecommunications ports and cabling of the ITE that are used for the transmission of digital signals using unshielded twisted pair (UTP) cabling. This paper presents the results of conducted CM voltage emission measurements made with a capacitive voltage probe (CVP) on a balanced and unbalanced UTP.

Keywords

capacitive sensors; digital signals; probes; twisted pair cables; voltage measurement; 150 kHz to 30 MHz; CISPR 22 conducted common mode voltage measurements; capacitive voltage probe; conducted common mode emissions; information technology equipment; telecommunications cabling; telecommunications ports; unshielded twisted pair cabling; wire; Communication cables; Current measurement; Delta modulation; Frequency measurement; Impedance matching; Probes; Testing; Transfer functions; Voltage measurement; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2002. EMC 2002. IEEE International Symposium on

Conference_Location

Minneapolis, MN, USA

Print_ISBN

0-7803-7264-6

Type

conf

DOI

10.1109/ISEMC.2002.1032437

Filename

1032437