Wide bandwidth low complexity isolated current sensor to be employed in a 10 kW/500 kHz three-phase unity power factor PWM rectifier system
2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289) - Tập 3 - Trang 1065-1070 vol.3
Tóm tắt
A current sensor employing a Hall-based field sensing ASIC in combination with a current transformer is proposed. The sensor is characterized by a measuring range of /spl plusmn/50 A, an upper bandwidth limit of 20 MHz and high dV/dt-immunity up to 10 kV//spl mu/s. The sensor functional principle and dimensioning are discussed in detail. Parameters determining the sensor bandwidth are clarified, the theoretical considerations are verified by experiments. Finally, measures for further increasing the sensor bandwidth are proposed.
Từ khóa
#Bandwidth #Pulse width modulation #Transducers #Sensor systems #Current measurement #Rectifiers #Current transformers #Sensor phenomena and characterization #Frequency measurement #Switching frequencyTài liệu tham khảo
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