DocumentCode
1866300
Title
DC current sensor for PWM converters
Author
Kelley, Arthur W. ; Titus, John E.
Author_Institution
Dept. of Electr. & Comput. Eng, North Carolina State Univ., Raleigh, NC, USA
fYear
1991
fDate
24-27 Jun 1991
Firstpage
641
Lastpage
650
Abstract
A sensor for inductor current in PWM converters which offers improved performance over presently available sensors is presented. The sensor is based on a saturable transformer, derives power from existing converter waveforms, provides DC isolation, and has inherently wide bandwidth. The sensor is compared to available current sensors. A theory of operation for the sensor is presented, the results of a sensor trial demonstration are reported, and sensor limitations and additional potential applications are discussed
Keywords
electric current measurement; electric sensing devices; power convertors; pulse width modulation; DC current sensor; DC isolation; PWM converters; inductor current; inherently wide bandwidth; saturable transformer; Bandwidth; Current measurement; DC-DC power converters; Inductors; Magnetic sensors; Pulse width modulation converters; Sensor phenomena and characterization; Switches; Temperature distribution; Temperature sensors;
fLanguage
English
Publisher
ieee
Conference_Titel
Power Electronics Specialists Conference, 1991. PESC '91 Record., 22nd Annual IEEE
Conference_Location
Cambridge, MA
Print_ISBN
0-7803-0090-4
Type
conf
DOI
10.1109/PESC.1991.162743
Filename
162743
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