A 200-MHz Integrated Buck Converter With Resonant Gate Drivers for an RF Power Amplifier

Bathily, Malal; Allard, Bruno; Hasbani, Frédéric

doi:10.1109/tpel.2011.2119380

Cited by 59 publications

(17 citation statements)

References 6 publications

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“…The average current is found with (14). As with the precharge intervals, reduction of the RL time constant is the only way to reduce the magnitude for a …”

Section: B Driver Loss Mechanismsmentioning

confidence: 99%

A Dual-Channel Current Source Driver for Complementary Switches

Tschirhart

Jain

2014

IEEE Trans. Power Electron.

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In this paper, a dual-channel current source driver is presented as an efficient means of driving complementary switches. The driver transfers charge between the gates of the power devices through a single magnetic core with a discontinuous current. This promotes lower conduction loss than continuous current resonant gate drivers (RGDs), and lower component count or conduction loss than existing discontinuous current RGD applied to complementary switches. In addition, controlled switching speed is achieved through nonzero inductor current resulting in lower current stress, and faster switching compared to some pulse RGD circuits. There is good correlation between the analysis and experimental results of a 1.8-MHz prototype.

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“…The average current is found with (14). As with the precharge intervals, reduction of the RL time constant is the only way to reduce the magnitude for a …”

Section: B Driver Loss Mechanismsmentioning

confidence: 99%

A Dual-Channel Current Source Driver for Complementary Switches

Tschirhart

Jain

2014

IEEE Trans. Power Electron.

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“…An alternative approach is to apply the ZVS technique and energy recovery with a second inductor at the last stage of the tapered driver similar to the approach found in [23].…”

Section: B Review Of the Implementationmentioning

confidence: 99%

Energy Recycling From Multigigahertz Clocks Using Fully Integrated Switching Converters

Sheikhaei

Alimadadi

Lemieux

et al. 2013

IEEE Trans. Power Electron.

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Abstract-Large digital chips use a significant amount of energy to broadcast a low-skew, multigigahertz clock to millions of latches located throughout the chip. Every clock cycle, the large aggregate capacitance of the clock network is charged from the supply and then discharged to ground. Instead of wasting this stored energy, it is possible to recycle the energy by controlling its delivery to another part of the chip using an on-chip dc-dc converter. The clock driver and switching converter circuits share many compatible characteristics that allow them to be merged into a single design and fully integrated on-chip. Our buck converter prototype, manufactured in 90-nm CMOS, provides a proof-of-concept that clock network energy can be recycled to other parts of the chip, thus lowering overall energy consumption. It also confirms that monolithic multigigahertz switching converters utilizing zero-voltage switching can be implemented in deep-submicrometer CMOS. With multigigahertz operation, fully integrated inductors and capacitors use a small amount of chip area with low losses. Combining the clock driver with the power converter can share the large MOSFET drivers necessary as well as being energy and space efficient. We present an analysis of the losses which we confirm by experimentally comparing the merged circuit with a conventional clock driver.Index Terms-Charge recycling, energy recovery, energy recycling, integrated clock/converter, integrated dc-dc converter, integrated output filter, multigigahertz clock, switching dc-dc converter.

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“…Single input single output converter As it has been said before, a switching dc-dc converter offers high efficiency and in the state of the art there can be found many solutions based on a buck converter due to its simplicity. Buck converter is a very attractive solution when it is necessary to implement a solution for an integrated PA [7][8][9]. These solutions operate at extremely high switching frequencies (up to 200MHz) in order to minimize the size of passive components and facilitate the integration.…”

Section: Classification Of the Solutions For Eamentioning

confidence: 99%

Survey of architectures and optimizations for wide bandwidth envelope amplifier

Vasić

García

Oliver

et al. 2012

2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC)

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-In the last years, RF power amplifiers are taking advantage of the switched dc-dc converters to use them in several architectures that may improve the efficiency of the amplifier, keeping a good linearity. The use of linearization techniques such as Envelope Elimination and Restoration (EER) and Envelope Tracking (ET) requires a very fast dc-dc power converter to provide variable voltage supply to the power amplifier but theoretically the efficiency can be much higher than using the classical amplifiers belonging to classes A, B or AB. The purpose of this paper is to analyze the state of the art of the power converters used as envelope amplifiers in this application. The power topologies will be explored and several important parameters such as efficiency, bandwidth will be discussed.

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A 200-MHz Integrated Buck Converter With Resonant Gate Drivers for an RF Power Amplifier

Cited by 59 publications

References 6 publications

A Dual-Channel Current Source Driver for Complementary Switches

A Dual-Channel Current Source Driver for Complementary Switches

Energy Recycling From Multigigahertz Clocks Using Fully Integrated Switching Converters

Survey of architectures and optimizations for wide bandwidth envelope amplifier

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