Linearizing CMOS Switching Power Amplifiers Using Supply Regulators
In high-speed communications systems, the power amplifier (PA) is the dominant source of power consumption from the battery and, thus, one of the main limitations in increased mobility. Switching PAs are more efficient than their linear counterparts and, thus, demand less power from the battery; how...
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| Veröffentlicht in: | IEEE transactions on circuits and systems. II, Express briefs Express briefs, 2010-07, Vol.57 (7), p.497-501 |
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| container_title | IEEE transactions on circuits and systems. II, Express briefs |
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| creator | Walling, Jeffrey S Allstot, David J |
| description | In high-speed communications systems, the power amplifier (PA) is the dominant source of power consumption from the battery and, thus, one of the main limitations in increased mobility. Switching PAs are more efficient than their linear counterparts and, thus, demand less power from the battery; however, they do not have sensitivity to the amplitude variations seen in nonconstant-envelope modulation. This brief discusses supply modulation, a technique that enables use of switching PAs for improved power efficiency, by providing a means of linearizing the PA. |
| doi_str_mv | 10.1109/TCSII.2010.2049924 |
| format | Article |
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| ispartof | IEEE transactions on circuits and systems. II, Express briefs, 2010-07, Vol.57 (7), p.497-501 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Amplitude modulation Batteries Battery CMOS Communication switching Electric batteries Frequency modulation High speed linearization Modulation power amplifier (PA) Power amplifiers Power generation Power supplies Pulse width modulation Regulators supply modulation Switching switching amplifier Topology |
| title | Linearizing CMOS Switching Power Amplifiers Using Supply Regulators |
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