1 citations · 1 across the 4 of their papers we have counts for
4 papers
Output stages inside a negative feedback loop: application to a low-voltage three-phase DC-AC converter for educational purposes
Francisco Llopis, Mario Jakas
The circuit presented in this paper aims at providing three 40 Vpp 50Hz AC voltages sources with 120-degree phase separation between them. This is a fully analogue circuit that use…
Light trapping within the grooves of 1D diffraction gratings under monochromatic and sunlight illumination
Mario M. Jakas, Francisco Llopis
The Rayleigh-Modal method is used to calculate the electromagnetic field within the grooves of a perfectly conducting, rectangular-shaped 1D diffraction grating. An \emph{enhanceme…
Theoretical analysis of the performance of a diffraction grating back- reflector in infrared-sensitive solar cells
Mario M. Jakas, Francisco Llopis
The increase of cell efficiency resulting from using a diffraction grating as a back reflector is investigated. An enhancement coefficient is introduced as a figure of merit that a…
LC sine-wave oscillators using general-purpose voltage operational-amplifiers
M. M. Jakas, F. Llopis
It has been found that some text-books show LC-oscillators that may not work as assumed. Thus, the typical example showing a LC-oscillator driven by a voltage operational-amplifier…