IRTG Doctoral Researcher Niharika Gogoi has introduced to the group the basics of rectification circuits to generate stable voltage
The Project A „Electronic Circuits for Piezoelectric Energy Harvesting and Sensor Array System“ is interested in harvesting ambient vibration energy by means of multiple piezo ceramics, to implement in self-powered applications. However, when the source of excitation is discontinuous and unpredictable, it demands for an advanced interface circuitry, which can scavenge the energy to provide stable power for the specific application. The primary goal of Project A is to ensure sufficient availability, stability of the generated energy and improved conversion efficiency from asynchronous piezo ceramics.
As part of the adjusted Online – IRTG Qualification Program 2021, which is the second year for our doctoral researchers, Tutorials and Hands-on Workshops will be presented monthly. Niharika Gogoi prepared video material which she then explained live. However, all doctoral researchers are of course encouraged to try it out live together, if the measures against Covid-19 allow it.
In alignment with the goals of their research project, M.Sc. Niharika Gogoi together with her Principle Investigator Prof. Dr.-Ing. Georg Fischer and Associated Post-doc Dr. Dr. Jens Kirchner, have conducted a workshop on January 21st 2021, to demonstrate the basics of rectification circuits to generate stable voltage. Rectification is the major interest of project A. In the workshop, they have used half wave and full wave bridge rectifiers, with filtering elements to ensure stable output. The workshop is a experimental demonstration of their preliminary interface circuitry for a known sine signal and unpredictable piezo signal. They have further introduced advanced techniques for the demonstrated circuits to deal with asynchronous and non-stationary inputs to piezo-elements.