Essays about: "Power Amplifier"

Showing result 1 - 5 of 126 essays containing the words Power Amplifier.

  1. 1. Electrical Pulsing of a Laser Diode for Usage in Fluorescence Microscopy

    University essay from Linköpings universitet/Elektroniska Kretsar och System

    Author : Karin Jerner; [2017]
    Keywords : electrical pulsing; laser pulsing; fluorescence microscope; laser diode;

    Abstract : A relatively new application for the laser is in fluorescence microscopes. The fluo- rescence microscope needs a high power light source input. Using a laser source improves the precision of the microscope. A pulsed laser source enhances the performance of the fluorescence microscope and a laser diode can be overdriven without being damaged. READ MORE

  2. 2. Different Digital Predistortion Techniques for Power Amplifier Linearization

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Ibrahim Can Sezgin; [2016]
    Keywords : DPD; Digital Predistortion; Forward Behavioral Modeling; Power Amplifier; Non-Linearity; Memory Effect; Volterra Series; Memory Polynomial; Generalized Memory Polynomial; Simplified Volterra Series; Augmented Complexity Reduced Generalized Memory Polynomial; Augmented Complexity Reduced Simplified Volterra; Technology and Engineering;

    Abstract : Linearity and high efficiency are crucial requirements for any power amplifier. However, power amplifiers have high efficiency levels when they are in non-linear regions. To overcome this issue there have been many suggestions in literature, one of the most successful methods is digital predistortion method. READ MORE

  3. 3. An efficient Hardware implementation of the Peak Cancellation Crest Factor Reduction Algorithm

    University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Author : Matteo Bernini; [2016]
    Keywords : CFR; PC-CFR; PAPR Reduction; OFDM; CFR; PC-CFR; PAPR Reduction; OFDM;

    Abstract : An important component of the cost of a radio base station comes from to the Power Amplifier driving the array of antennas. The cost can be split in Capital and Operational expenditure, due to the high design and realization costs and low energy efficiency of the Power Amplifier respectively. READ MORE

  4. 4. Development of a Class D motor amplifier for a next-generation mechanism control electronics

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Juan Camilo Garcia Hernandez; [2016]
    Keywords : Power; electronics; satellites; BLDC; sinusoidal; commutation; control; PID; class D amplifier; PWM;

    Abstract : This thesis was written at Airbus DS GmbH in Friedrichshafen, Germany, as part of a project which aims to develop a new generation of class-D power amplification circuits for sinusoidal commutating motors controlling the movement of different mechanisms in satellites. Currently used topologies have disadvantages such as high power loss, analog controlling and high degree of signal distortion. READ MORE

  5. 5. Integrated CMOS Doppler Radar : Power Amplifier Mixer

    University essay from Linköpings universitet/Elektroniska Kretsar och System

    Author : Olof Sjöholm; [2016]
    Keywords : Doppler Radar Power Amplifier Mixer CMOS RF;

    Abstract : This thesis is based on a paper by V. Issakov, presented 2009, where a circuit of a merged power amplifier mixer solution was demonstrated. This work takes that solution and simplifies it for the use at a lower frequency. The implementation target is a Doppler radar application in CMOS that can detect humans in a range of 5 to 15 meters. READ MORE