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Performance Evaluation of CMUT-Based Ultrasonic Transformers for Galvanic Isolation
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2018This paper presents the development of a novel acoustic transformer with high galvanic isolation dedicated to power switch triggering. The transformer is based on two capacitive micromachined ultrasonic transducers layered on each side of a silicon substrate; one is the primary circuit, and the other is the secondary circuit.
Heller, Jacques +4 more
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Note: Galvanic isolated voltage source using a single photodiode
Review of Scientific Instruments, 2010A galvanic isolated voltage source able to provide several volts by using a single photodiode is described. A pulse-modulated laser beam is sent to a photodiode. By using a step-up transformer the amplitude of the variable voltage generated by the photodiode is increased. Adding a rectifier cell the variable voltage is converted back into a dc voltage.
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Galvanically isolated sepic converter
2014SEPIC converter includes: a control unit (10); a transformer (23) having a primary winding (15), an auxiliary winding (16), and a secondary winding (20); a work capacitor (17) between the primary winding (15) and the auxiliary winding (16); a main switch (18) and a recovery switch (30), both controlled by the control unit (10) and connected ...
Stefano Saggini, Fabio ONGARO
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Giant-Magnetoresistance-Based Galvanically Isolated Voltage and Current Measurements
IEEE Transactions on Instrumentation and Measurement, 2015Nowadays, dc current is much more widely used than a decade ago, not only in the well-known high-voltage dc transmission but also as dc-powered marine systems, dc data centers, and dc fast charging systems for electric vehicles. However, galvanically isolated dc voltage or current sensors are, in terms of accuracy, noise level, or dimensions, still far
Fei Xie, Roland Weiss, Robert Weigel
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cMUT technology applied to galvanic isolation: Theory and experiments
2015 IEEE International Ultrasonics Symposium (IUS), 2015This study relies on double-sided chips where capacitive Micromachined Ultrasonic Transducers (cMUT) are manufactured on both sides of a silicon substrate in order to perform galvanic isolation between two electrical circuits. The operating principle is based on the propagation of acoustic waves from one transducer to the other, providing a high level ...
Jacques Heller +5 more
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Scalable Galvanic Isolators with High Isolation Realized by Magnetoelectric Gyrators
Journal of Electronic Materials, 2022Jitao Zhang +9 more
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Galvanically Isolated Clamp-on Medium-Voltage Sensing
2022 IEEE Energy Conversion Congress and Exposition (ECCE), 2022Blake D. Rose, Daniel C. Ludois
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Discussions on the semiconductor-based galvanic isolation
2014 IEEE Workshop on Wide Bandgap Power Devices and Applications, 2014Xuan Zhang +3 more
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A galvanic isolation circuit, corresponding system and method
2016A galvanic isolation circuit (GI) includes a differential transformer (20) having primary (21) and secondary (22) windings for transmission of signals over a carrier (DT) between the primary (21) and the secondary (22) windings of the transformer. The primary (21) and secondary (22) windings have a galvanic isolation oxide layer (23) therebetween and ...
E. Ragonese +5 more
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