Essays about: "Diode"

Showing result 16 - 20 of 133 essays containing the word Diode.

  1. 16. Design of LED setup for measuring tandem solar cell subcell J-V behaviour

    University essay from

    Author : Kristina Bergström; Mohammed Nour Kamalmaz; Erik Lindvall; [2022]
    Keywords : Tandem solar cell; LED; background light; bias; arduino; processing; subcell;

    Abstract : The need to accurately measure multi-junction (MJ) tandem solar cells' subcell current-voltage characteristics is increasing due to the vital information they provide about the efficiency, stability, and longevity of the cells. These measurements are rather difficult compared to their counterpart single-layer solar cell measurements. READ MORE

  3. 17. An Inexpensive Alpha Spectrometer Based on a p-i-n Photodiode : Making Advanced Particle Detectors From Common Commercial Components

    University essay from Uppsala universitet/Institutionen för materialvetenskap

    Author : Elias Arnqvist; [2022]
    Keywords : Alpha spectroscopy; alpha particle; particle detector; radiation detector; p-i-n diode; PIN diode; photodiode;

    Abstract : The purpose of this project was to design, construct, and evaluate an alpha spectrometer based on an inexpensive p-i-n photodiode as a radiation detector. The BPX-61 p-i-n photodiode was selected and calculated to have a 93 µm wide sensitive volume at 25 V reverse bias. READ MORE

  4. 18. Investigating the use of Semiconductor Nanowires for Neural Networks

    University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Author : Alfredo Serafini; [2022]
    Keywords : FDTD method and simulation; optical broadcasting neural network; optical communication of nanowires; sub-wavelength absorption.; Physics and Astronomy;

    Abstract : In this work, we intend to employ nanowires for the realisation of an artificial neuron which can be used to design a neural network that will guide the new generation of non-von Neumann architectures such as Neuromorphic Computing. Possible applications are strongly related to Neuromorphic architectures and artificial intelligence, such as high-performance computers, robotics hardware and autonomous drones. READ MORE

  5. 19. Analysis and Performance Evaluation of a Three-phase Three-level Sparse Neutral Point Clamped Converter for Industrial Variable Speed Drives

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Pengpeng Sun; [2022]
    Keywords : Sparse Neutral Point Clamped Converter; Industrial Variable Speed Drives; Silicon IGBT; Calorimetric Measurement; Reverse Recovery Energy; Sparse Neutral Point Clamped Converter; Industriella Varvtalsstyrda Motordrifter; Silicon IGBT; Kalorimetrisk Mätning; Energi för Återhämtningsprocess;

    Abstract : This thesis project focuses on the simulation, design, hardware realization, and performance evaluation of a Three-phase Three-level (3-L) Sparse Neutral Point Clamped Converter (SNPCC) for Industrial Variable Speed Drives (VSDs). The basic operating principle of the SNPCC is briefly described based on switching functions. READ MORE

  6. 20. Single Photon LSCM in the NIR Range

    University essay from KTH/Tillämpad fysik

    Author : Klara Wallenbro; [2022]
    Keywords : LSCM; NIR; SNSPD; LSCM; NIR; SNSPD;

    Abstract : In this thesis a near-infrared laser scanning confocal microscope (NIR-LSCM) is built to operate with optimal performance at 1550nm in combination with simultaneous LED light imaging at 970nm. For detection, a camera equipped with a complementary metal oxide semiconductor (CMOS) sensor and a superconducting nanowire single photon detector (SNSPD) are used for the LED part and the LSCM part, respectively. READ MORE