Essays about: "Switch Mode Power Amplifiers"

Found 4 essays containing the words Switch Mode Power Amplifiers.

  1. 1. Investigating power amplifier behavior in User Equipment terminals

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

    Author : Adyasha Panda; [2021]
    Keywords : Power Amplifier; Technology and Engineering;

    Abstract : In this thesis work, experiments have been carried out to study the behavior of radio frequency power amplifier which is the one of the largest power consumers in a user equipment which is a mobile phone in this case. A CMW-500 which is a Rohde and Schwarz equipment has been used to emulate the base station. READ MORE

  3. 2. Design of a power amplifier for NB-IoT

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

    Author : Rajeshwari Yogi; [2018]
    Keywords : NB-IoT; Power amplifier; Inverse class D power amplifer; Technology and Engineering;

    Abstract : An inverse class D power amplifier and a class A power amplifier are designed at schematic level for 20 dBm power class and NB-IoT specification in 65 nm CMOS technology. A suitable switch mode supply modulator is also designed. READ MORE

  4. 3. A Study of Switched Mode Power Amplifiers using LDMOS

    University essay from Institutionen för teknik och byggd miljö

    Author : Ahmed Al Tanany; [2007]
    Keywords : LDMOS; Switch Mode Power Amplifiers; power amplifier; BALUN;

    Abstract : This work focuses on different kinds of Switch Mode Power Amplifiers (SMPAs) using LDMOS technologies. It involves a literature study of different SMPA concepts. Choosing the suitable class that achieves the high efficiency was the base stone of this work. READ MORE

  5. 4. Dynamic load modulation

    University essay from Institutionen för teknik och byggd miljö

    Author : Björn Almgren; [2007]
    Keywords : load modulation; load tracking; power added efficiency; high efficiency; PA; power amplifier; switch mode; switching; dlm; lm; et; envelope tracking; modulation; load; efficiency; PAE;

    Abstract : The purpose of this master thesis was to study if the drain efficiency of power amplifiers can be maintained at power back off using a technique called load modulation. The amplifier classes studied are E, F and D-1. The target figure was to obtain a 10 to 12 dB dynamic range of amplitude with reasonable efficiency. READ MORE