公开(公告)号：US20180287564A1

公开(公告)日：2018-10-04

申请号：US15996828

申请日：2018-06-04

申请人： Avago Technologies General IP (Singapore) Pte. Ltd.

发明人： Ali Afsahi ,  Debopriyo Chowdhury ,  Rethnakaran Pulikkoonattu ,  Sraavan Mundlapudi

IPC分类号： H03F1/02 ,  H03F3/193 ,  H03F3/213 ,  H03F3/24 ,  H03F3/45 ,  H03F1/32 ,  H03F1/22

CPC分类号： H03F1/0222 ,  H03F1/0211 ,  H03F1/0244 ,  H03F1/0277 ,  H03F1/22 ,  H03F1/223 ,  H03F1/3241 ,  H03F3/193 ,  H03F3/213 ,  H03F3/245 ,  H03F3/45188 ,  H03F2200/102 ,  H03F2200/18 ,  H03F2200/451 ,  H03F2201/3233 ,  H03F2203/45048 ,  H03F2203/45481

摘要： An amplifier may include control circuitry that may track a first input signal parameter and, in response, adjust a value of a second input parameter. Input parameter tracking and adjustment may facilitate control of output parameters for the amplifier. For example, an envelope-tracking amplifier may track input signal amplitude and adjust other input parameters in response. The adjustments may facilitate control of output parameters, such as gain or efficiency. The amplifier may further include calibration circuitry to determine adjustment responses to various tracked input parameters.

公开(公告)号：US09614477B1

公开(公告)日：2017-04-04

申请号：US15011186

申请日：2016-01-29

申请人： Avago Technologies General IP (Singapore) Pte. Ltd.

发明人： Dmitriy Rozenblit ,  Tirdad Sowlati ,  Ali Afsahi ,  Debopriyo Chowdhury ,  Sraavan R. Mundlapudi ,  Morteza Vadipour

IPC分类号： H03F3/04 ,  H03G3/20 ,  H03F1/02 ,  H03F3/193 ,  H03F3/21

CPC分类号： H03F1/0227 ,  H03F3/19 ,  H03F3/245 ,  H03F3/68 ,  H03F2200/102 ,  H03F2200/451

摘要： The present disclosure is directed to an envelope tracking supply modulator for multiple PAs. The envelope tracking supply modulator is configured to provide, for each of the multiple PAs, a separate supply voltage that is modulated based on the envelope of the respective RF input signal to the PA. Each of the modulated supply voltages is constructed from a DC component and an alternating current (AC) component. The DC component for each modulated supply voltage is generated by a main switching regulator that is shared by the multiple PAs. In one embodiment, the AC component for each modulated supply voltage is generated by an auxiliary switching regulator that is shared by the multiple PAs and a separate linear regulator for each of the multiple PAs. In another embodiment, the AC component for each modulated supply voltage is generated by a separate buffer.

公开(公告)号：US10003303B2

公开(公告)日：2018-06-19

申请号：US15180840

申请日：2016-06-13

申请人： Avago Technologies General IP (Singapore) Pte. Ltd.

发明人： Ali Afsahi ,  Debopriyo Chowdhury ,  Rethnakaran Pulikkoonattu ,  Sraavan Reddy Mundlapudi

IPC分类号： H03F3/04 ,  H03F1/02 ,  H03F1/32 ,  H03F3/193 ,  H03F3/213 ,  H03F1/22

CPC分类号： H03F1/0222 ,  H03F1/0211 ,  H03F1/0244 ,  H03F1/0277 ,  H03F1/22 ,  H03F1/223 ,  H03F1/3241 ,  H03F3/193 ,  H03F3/213 ,  H03F3/245 ,  H03F3/45188 ,  H03F2200/102 ,  H03F2200/18 ,  H03F2200/451 ,  H03F2201/3233 ,  H03F2203/45048 ,  H03F2203/45481

摘要： An amplifier may include control circuitry that may track a first input signal parameter and, in response, adjust a value of a second input parameter. Input parameter tracking and adjustment may facilitate control of output parameters for the amplifier. For example, an envelope-tracking amplifier may track input signal amplitude and adjust other input parameters in response. The adjustments may facilitate control of output parameters, such as gain or efficiency. The amplifier may further include calibration circuitry to determine adjustment responses to various tracked input parameters.