Title :
PCB Rogowski coils for high di/dt current measurement
Author :
Karrer, Nicolas ; Hofer-Noser, Patrick
Author_Institution :
Electr. Eng. & Design Lab., Swiss Federal Inst. of Technol., Zurich, Switzerland
Abstract :
In order to measure di/dt in the range of 10 to 20 kA/μs, air cored coils can be used. The coil´s natural frequency limits the bandwidth of this probe. PCB coils have a natural frequency of 10 MHz or more. Theoretical analysis and measurements with di/dt of 5 kA/μs and 500 A are presented, employing the PCB coil in a HOKA current probe
Keywords :
coils; electric current measurement; insulated gate bipolar transistors; magnetic cores; power bipolar transistors; printed circuits; probes; semiconductor device measurement; semiconductor device models; semiconductor device testing; 10 MHz; 500 A; HOKA current probe; PCB Rogowski coils; air cored coils; high di/dt current measurement; natural frequency; probe bandwidth; Circuit faults; Coils; Current measurement; Electric variables measurement; Frequency; Insulated gate bipolar transistors; Probes; Resistors; Snubbers; Switches;
Conference_Titel :
Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual
Conference_Location :
Galway
Print_ISBN :
0-7803-5692-6
DOI :
10.1109/PESC.2000.880497
