What are the different types of class A power amplifiers available?
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19 Sep 2001 | With its separated baseband - which by theory is free of distortion - this concept enables the design of ultra-linear class-D power amplifiers. |
Continuous class-F power amplifiers with resistive second-harmonic impedance is for the first time analyzed and employed in a multi-sub-band mode to enhance the bandwidth of a conventional continuous class-F PA. | |
14 Citations | This paper describes a highly efficient class-E power amplifier. |
09 Feb 2014 | Highvoltage, high-power class-D amplifiers [2]-[5] are ideal drivers for such loads, because of their high power efficiency. |
13 Citations | The amplifier is a complementary class-E tuned power amplifier because of both P-type and N-type transistors are employed to achieve a highly symmetrical topology, thereby reducing the significant distortion in the output signal of the conventional single-ended class-E power amplifier. |
These high-efficiency, high-power amplifiers are well suited for telecommunication satellite transponders. | |
26 Citations | The proposed method can be used in the design of many other types of amplifiers. |
08 Nov 2004 13 Citations | To the authors' knowledge, this is the highest power added efficiency for class-E amplifiers at Ka-band reported up to date. |
The validity and feasibility of the new modified class E power amplifier are proved by a simulation and an experiment circuits. | |
Furthermore, the design equations highlight several important practical constraints, which help develop effective designs for improving the performance of practical Class E amplifiers. | |
01 Jan 2003 47 Citations | Class-E power amplifiers [1]–[6] achieve significantly higher efficiency than for conventional Class-B or -C. Class E operates the transistor as an on/off switch and shapes the voltage and current waveforms to prevent simultaneous high voltage and high current in the transistor; that minimizes the power dissipation, especially during the switching transitions. |
21 Citations | It is a promising candidate to design broadband and high-efficiency power amplifiers. |
21 Citations | Compared with the classical class-E power amplifier, the presented class-E power amplifier with shunt filter has a higher achievable maximum frequency and requires less quality factor of the filter. |
47 Citations | Furthermore, the method can also be applied for power amplifiers that do not fulfill the class E switching conditions. |
10 Dec 2006 | The presented design equations for Class-EVS power amplifiers give more degrees of freedom in the design and optimization of switching RF power amplifiers. |
05 May 2012 | This paper proposes a novel and easily-implemented method for Class-J power amplifiers. |
It is valuable to the design of Class E amplifiers by offering designers insight into circuit behavior. | |
This method is applicable to analyse Class E power amplifiers with any circuit configuration and parameters at any switching-on duty cycle, and does also take into account the switching transistor ON resistance. | |
30 Citations | According to the authors' knowledge, this study represents the first systematic approach to design class-E power amplifiers at UHF using devices with larger COUT by taking into account the use of arbitrary finite-feed class-E topologies. |