Floating Voltage Sensing Based on Ceramic Capacitor Ferroelectric Derating
| dc.contributor.author | Michal, Vratislav | |
| dc.contributor.editor | Pinker, Jiří | |
| dc.date.accessioned | 2022-11-04T08:52:45Z | |
| dc.date.available | 2022-11-04T08:52:45Z | |
| dc.date.issued | 2022 | |
| dc.description.abstract-translated | This paper presents methods allowing to provide galvanically isolated DC voltage measurement with nearly infinite input impedance. Measurement is based on a ferroelectric effect, creating hysteretic capacitance vs. bias- voltage (C-V) dependence of the ordinary multilayer ceramic capacitors. Voltage measurement is based on AC impedance sensing of a high-density multilayer ceramic capacitor and comparing with ground-referred matched capacitor with corresponding DC bias voltage. Corresponding DC bias voltage is provided by negative impedance converter and a feedback network. Despite finite accuracy (~1%), voltage sensing performed by a capacitor can be advantageous as it allows to implement AC (high-voltage) coupling, and presents nearly ideal infinite input impedance. This can be beneficial in a variety of applications e.g. in power management systems, energy harvesting applications, or scientific instrumentation. | en |
| dc.format | 4 s. | cs |
| dc.format.mimetype | application/pdf | |
| dc.identifier.citation | 2022 International Conference on Applied Electronics: Pilsen, 6th – 7th September 2022, Czech Republic, p. 121-124. | en |
| dc.identifier.isbn | 978-1-6654-9482-3 | |
| dc.identifier.uri | http://hdl.handle.net/11025/49864 | |
| dc.language.iso | en | en |
| dc.publisher | Fakulta elektrotechnická ZČU | cs |
| dc.rights | © IEEE | en |
| dc.rights.access | openAccess | en |
| dc.subject | snížení výkonu kondenzátoru | cs |
| dc.subject | feroelektrický jev | cs |
| dc.subject | hystereze kondenzátoru | cs |
| dc.subject | izolované měření napětí | cs |
| dc.subject | vícevrstvé keramické kondenzátory | cs |
| dc.subject.translated | capacitor derating | en |
| dc.subject.translated | ferroelectric effect | en |
| dc.subject.translated | capacitor hysteresis | en |
| dc.subject.translated | isolated voltage measurement | en |
| dc.subject.translated | multilayer ceramic capacitors (MLCC) | en |
| dc.title | Floating Voltage Sensing Based on Ceramic Capacitor Ferroelectric Derating | en |
| dc.type | konferenční příspěvek | cs |
| dc.type | conferenceObject | en |
| dc.type.status | Peer-reviewed | en |
| dc.type.version | publishedVersion | en |
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