High efficiency class-e switched mode power amplifier design and optimization with random search algorithm

Tabrizi, Mohammad Moghaddam; Masoumi, Nasser

doi:10.1109/icm.2004.1434268

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…Moreover, the design methodologies presented in [15]- [20] either relies on iteration [15]- [19] or assigning initial values to some design variables [20]. In [21], an analytical solution for a sub-class of Class-E PA 1 is presented.…”

Section: Introductionmentioning

confidence: 99%

Analytical Design Equations for Class-E Power Amplifiers with Finite DC-Feed Inductance and Switch On-Resistance

Acar

Annema

Nauta

2007

2007 IEEE International Symposium on Circuits and Systems (ISCAS)

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Abstract-Many critical design trade-offs of the Class-E power amplifier (e.g power efficiency) are influenced by the switch onresistance and the value of dc-feed drain inductance. In literature, the time-domain mathematical analyses of the Class-E power amplifier with finite dc-feed inductance assume zero switch onresistance in order to alleviate the mathematical difficulties; resulting in non-optimum designs.We present analytical design equations in this paper for Class-E power amplifier taking into account both finite drain inductance and switch on-resistance. The analysis indicates the existence of infinitely many design equations; conclusions include: 1) Class-E conditions (e.g. zero voltage and zero slope) can be satisfied in the presence of switch-on resistance.2) The drain-efficiency (η) of the Class-E power amplifier is upper limited for a certain operation frequency and transistor technology.3) Using a finite dc-feed inductance instead of an RF-choke in a Class-E power amplifier can increase η by ≈ 30%.

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Section: Introductionmentioning

confidence: 99%

Analytical Design Equations for Class-E Power Amplifiers with Finite DC-Feed Inductance and Switch On-Resistance

Acar

Annema

Nauta

2007

2007 IEEE International Symposium on Circuits and Systems (ISCAS)

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show abstract

“…Moreover, the design methodologies presented in [60]- [65] either relies on iteration [60]- [64] or assigning initial values to some design variables [65]. In [66], an analytical solution for a sub-class of Class-E PA 2 is presented.…”

Section: Introductionmentioning

confidence: 99%

Power amplifiers in CMOS technology : a contributio to power amplifier theory and techniques

Acar¹

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CMOS linear high performance push amplifier for WiMAX power amplifier

Masoumi

Tabrizi

2012

Microelectronics Journal

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High efficiency class-e switched mode power amplifier design and optimization with random search algorithm

Cited by 4 publications

References 9 publications

Analytical Design Equations for Class-E Power Amplifiers with Finite DC-Feed Inductance and Switch On-Resistance

Analytical Design Equations for Class-E Power Amplifiers with Finite DC-Feed Inductance and Switch On-Resistance

Power amplifiers in CMOS technology : a contributio to power amplifier theory and techniques

CMOS linear high performance push amplifier for WiMAX power amplifier

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