TY - GEN
T1 - 23.3 A 51A Hybrid Magnetic Current Sensor with a Dual Differential DC Servo Loop and 43mArmsResolution in a 5MHz Bandwidth
AU - Jouvaeian, Amirhossein
AU - Fan, Qinwen
AU - Motz, Mario
AU - Ausserlechner, Udo
AU - Makinwa, Kofi A.A.
N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
PY - 2023
Y1 - 2023
N2 - Magnetic current sensors are widely used in applications where galvanic isolation and wide bandwidth (BW) are desired, such as in switched-mode power supplies and motor drivers. By using Hall plates for low frequencies and pick-up coils for high frequencies, hybrid magnetic sensors can achieve high resolution (tens of textmA) over a wide frequency range (up to 15MHz) [1]-[3]. However, previous designs exhibit either poor gain flatness over frequency or limited energy efficiency. This work presents a hybrid magnetic current sensor that textachievespm 1. 1% gain flatness, which is 3times better than prior art [1]-[3]. Its energy efficiency is also 11times better than the state-of-the-art [1], [4], [5].
AB - Magnetic current sensors are widely used in applications where galvanic isolation and wide bandwidth (BW) are desired, such as in switched-mode power supplies and motor drivers. By using Hall plates for low frequencies and pick-up coils for high frequencies, hybrid magnetic sensors can achieve high resolution (tens of textmA) over a wide frequency range (up to 15MHz) [1]-[3]. However, previous designs exhibit either poor gain flatness over frequency or limited energy efficiency. This work presents a hybrid magnetic current sensor that textachievespm 1. 1% gain flatness, which is 3times better than prior art [1]-[3]. Its energy efficiency is also 11times better than the state-of-the-art [1], [4], [5].
UR - http://www.scopus.com/inward/record.url?scp=85151616632&partnerID=8YFLogxK
U2 - 10.1109/ISSCC42615.2023.10067677
DO - 10.1109/ISSCC42615.2023.10067677
M3 - Conference contribution
AN - SCOPUS:85151616632
T3 - Digest of Technical Papers - IEEE International Solid-State Circuits Conference
SP - 350
EP - 352
BT - 2023 IEEE International Solid-State Circuits Conference, ISSCC 2023
PB - IEEE
T2 - 2023 IEEE International Solid-State Circuits Conference, ISSCC 2023
Y2 - 19 February 2023 through 23 February 2023
ER -