A fully integrated DC to 75 MHz current sensing circuit with on-chip Rogowski coil
- A wide-bandwidth galvanically isolated current sensing circuit with an integrated Rogowski coil in 180nm CMOS is presented. Exploiting the high-frequency properties of an optimized on-chip Rogowski coil, currents can be measured up to a bandwidth of 75 MHz. The analog sensor front-end comprises a two-stage integrator, which allows a chopper frequency below signal bandwidth, resulting in 2.2 mVrms output noise. An additional integrated Hall sensor extends the measurement range towards DC.
| Author of HS Reutlingen | Funk, Tobias; Wicht, Bernhard |
|---|---|
| DOI: | https://doi.org/10.1109/CICC.2018.8357028 |
| ISBN: | 978-1-5386-2483-8 |
| Erschienen in: | 2018 IEEE Custom Integrated Circuits Conference (CICC) : 8-11 April 2018 |
| Publisher: | IEEE |
| Place of publication: | Piscataway, NJ |
| Document Type: | Conference Proceeding |
| Language: | English |
| Year of Publication: | 2018 |
| Page Number: | 4 |
| DDC classes: | 620 Ingenieurwissenschaften und Maschinenbau |
| Open Access?: | Nein |
| Licence (German): |  Lizenzbedingungen IEEE |
