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公开(公告)号：EP2359470B8
公开(公告)日：2016-09-14
申请号：EP09752325.2
申请日：2009-11-04
申请人： SnapTrack, Inc.
发明人： HENSHAW, Robert , WIMPENNY, Gerard
CPC分类号： H03F1/02 , H03F1/0227 , H03F1/0277 , H03F3/189
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公开(公告)号：EP2951922A2
公开(公告)日：2015-12-09
申请号：EP14704544.7
申请日：2014-01-31
申请人： Snaptrack, Inc.
发明人： WIMPENNY, Gerard
CPC分类号： H03F1/0222 , H02M3/158 , H02M2001/0045 , H03F1/0227 , H03F1/0238 , H03F3/189 , H03F3/19 , H03F3/211 , H03F3/217 , H03F3/245 , H03F2200/102 , H03F2200/135 , H03F2200/375 , H03F2200/391 , H03F2200/432 , H03F2200/451 , H03F2203/21106 , H03F2203/21142 , H04L25/4902
摘要： An envelope tracking power supply arranged to generate a modulated supply voltage in dependence on a reference signal, comprising a first path for tracking low frequency variations in the reference signal and a second path for tracking high frequency variations in the reference signal, and further comprising a combiner having a low frequency combining element for the first path and a high frequency combining element for the second path, and for generating the modulated supply voltage, wherein there is further provided sensing circuitry for sensing a resonance signal in the low or high frequency combining element, and adjusting circuitry for adjusting a signal in the first path in dependence on the sensed resonance signal.
摘要翻译： 包络跟踪电源被设置为根据参考信号产生调制的电源电压，包括用于跟踪参考信号中的低频变化的第一路径和用于跟踪参考信号中的高频变化的第二路径，并且还包括 组合器，其具有用于第一路径的低频组合元件和用于第二路径的高频组合元件，并且用于产生调制的电源电压，其中还提供用于感测低频或高频组合元件中的谐振信号的感测电路 以及用于根据所感测的谐振信号调整第一路径中的信号的调整电路。
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公开(公告)号：EP2951920B1
公开(公告)日：2019-12-11
申请号：EP14702042.4
申请日：2014-01-31
申请人： Snaptrack, Inc.
发明人： WIMPENNY, Gerard
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公开(公告)号：EP2754238B1
公开(公告)日：2018-08-29
申请号：EP12775212.9
申请日：2012-10-09
申请人： SnapTrack, Inc.
发明人： WIMPENNY, Gerard
CPC分类号： H05K1/18 , H03F1/0211 , H03F1/0227 , H03G3/20 , H03H7/0115
摘要： There is disclosed a supply feed network for an envelope tracking power amplifier arrangement comprising a power amplifier and a voltage modulator for providing a supply voltage to the power amplifier, the supply feed network comprising: a power distribution plane arranged to connect the supply voltage from the voltage modulator to the power amplifier.
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公开(公告)号：EP3304715A1
公开(公告)日：2018-04-11
申请号：EP16728500.6
申请日：2016-05-26
申请人： Snaptrack, Inc.
发明人： LABBE, Benoit , WIMPENNY, Gerard
CPC分类号： H02M3/156 , G05F1/56 , H02M2001/0009 , H02M2001/0025
摘要： There is disclosed a voltage regulator, including a switching stage, for generating an output voltage, the voltage regulator comprising a feedback path for controlling the switching stage, in which a feedback signal in the feedback path is ramp-compensated, the ramp for the ramp compensation being generated from an output of the switching stage.
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公开(公告)号：EP2359470B1
公开(公告)日：2016-07-20
申请号：EP09752325.2
申请日：2009-11-04
申请人： SnapTrack, Inc.
发明人： HENSHAW, Robert , WIMPENNY, Gerard
CPC分类号： H03F1/02 , H03F1/0227 , H03F1/0277 , H03F3/189
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公开(公告)号：EP2951922B1
公开(公告)日：2019-01-02
申请号：EP14704544.7
申请日：2014-01-31
申请人： Snaptrack, Inc.
发明人： WIMPENNY, Gerard
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公开(公告)号：EP2951921B1
公开(公告)日：2018-11-21
申请号：EP14702564.7
申请日：2014-01-31
申请人： SnapTrack, Inc.
发明人： WIMPENNY, Gerard
CPC分类号： H03F1/0238 , H02M1/00 , H02M3/158 , H02M2001/0045 , H03F1/0211 , H03F1/0227 , H03F3/189 , H03F3/19 , H03F3/20 , H03F3/211 , H03F3/245 , H03F2200/102 , H03F2200/135 , H03F2200/351 , H03F2200/375 , H03F2200/391 , H03F2200/432 , H03F2200/451 , H03F2203/21106 , H03F2203/21142
摘要： There is disclosed an envelope tracking modulated supply arranged to generate a modulated supply voltage in dependence on a reference signal, comprising a low frequency path for tracking low frequency variations in the reference signal and including a switched mode power supply, a correction path for tracking high frequency variations in the reference signal and including a linear amplifier, a feedback path from the output of the linear amplifier to the input of the linear amplifier, and a combiner for combining the output of the switched mode power supply and the output of the linear amplifier to generate a modulated supply voltage.
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9.发明授权CREST FACTOR REDUCTION APPLIED TO SHAPING TABLE TO INCREASE POWER AMPLIFIER EFFICIENCY OF ENVELOPE TRACKING AMPLIFIER 有权CREST因子削减适用于成形台以提高包络跟踪放大器的功率放大器效率
公开(公告)号：EP2792065B1
公开(公告)日：2018-03-28
申请号：EP13700566.6
申请日：2013-01-16
申请人： SnapTrack, Inc.
发明人： WIMPENNY, Gerard
CPC分类号： H03G11/04 , H03F1/0222 , H03F1/0227 , H03F3/189 , H03F2200/102
摘要： There is disclosed a method of controlling an input to an envelope modulated power supply of an envelope tracking amplification stage, comprising: generating an envelope signal representing the envelope of a signal to be amplified; applying a shaping function to the envelope signal to generate a shaped envelope signal, including: clipping the shaped envelope signal at high input envelope values; and providing the shaped envelope signal as an input signal to the envelope modulated power supply.
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10.发明授权
公开(公告)号：EP3061184B1
公开(公告)日：2018-02-14
申请号：EP14792430.2
申请日：2014-10-20
申请人： SnapTrack, Inc.
发明人： WIMPENNY, Gerard
CPC分类号： H03F1/30 , H03F1/0227 , H03F1/3241 , H03F3/005 , H03F3/189 , H03F3/21 , H03F3/211 , H03F3/245 , H03F2200/102 , H03F2200/111 , H03F2201/3206 , H03F2203/21181 , H03F2203/21184 , H03F2203/21193
摘要： An envelope tracking power amplifier system comprising an RF input path and an envelope path for providing a modulated power amplifier supply, further comprising a plurality of envelope detectors for detecting the envelope of a plurality of frequency bands of an input signal and each generating an output signal, and a combiner for combining the output of the envelope detectors.
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