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公开(公告)号：EP3244532A1
公开(公告)日：2017-11-15
申请号：EP16169019.3
申请日：2016-05-10
Inventor： FRICK, Vincent , OSBERGER, Laurent
CPC classification number: H03F3/45183 , G01R33/0029 , G01R33/0088 , H03F3/393 , H03F3/45475 , H03F3/45659 , H03F9/00 , H03F15/00 , H03F2200/129 , H03F2200/372 , H03F2200/375 , H03F2200/411 , H03F2200/75 , H03F2203/45082 , H03F2203/45088 , H03F2203/45116 , H03F2203/45134 , H03F2203/45138 , H03F2203/45188 , H03F2203/45192 , H03F2203/45208 , H03F2203/45226 , H03F2203/45276 , H03F2203/45346 , H03F2203/45361 , H03F2203/45434 , H03F2203/45642 , H03F2203/45656 , H03F2203/45674 , H03F2203/45681 , H03F2203/45684
Abstract: According to an aspect of the invention, it is provided a magnetic operational amplifier having a differential stage (1) comprising a first magnetic field effect transistor MAGFET (11) and a differential signal conditioner, the differential signal conditioner comprising a charge stage (151), a differential input pair (153) connected to the charge stage (151) and a biasing current source (155) connected to the differential input pair (153); the magnetic field effect transistor MAGFET (11) being connected to the charge stage (151) as a second differential input pair and the differential signal conditioner comprising a second biasing current source (156) connected to the magnetic field effect transistor MAGFET (11).
Abstract translation: 根据本发明的一个方面，提供了一种具有包括第一磁场效应晶体管MAGFET（11）和差分信号调节器的差分级（1）的磁运算放大器，差分信号调节器包括充电级（151） ，连接到所述充电级（151）的差分输入对（153）和连接到所述差分输入对（153）的偏置电流源（155）; 所述磁场效应晶体管MAGFET（11）连接到所述充电级（151）作为第二差分输入对，并且所述差分信号调节器包括连接到所述磁场效应晶体管MAGFET（11）的第二偏置电流源（156）。
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公开(公告)号：EP2317644B1
公开(公告)日：2015-10-28
申请号：EP09252519.5
申请日：2009-10-30
Applicant: ST-Ericsson SA
Inventor： Teng, Robert Hwat Hian
CPC classification number: H03F1/305 , H03F1/342 , H03F3/187 , H03F3/45179 , H03F3/45475 , H03F2200/03 , H03F2200/156 , H03F2200/18 , H03F2200/27 , H03F2200/312 , H03F2200/396 , H03F2200/408 , H03F2200/414 , H03F2200/417 , H03F2200/453 , H03F2200/456 , H03F2200/507 , H03F2200/522 , H03F2203/45101 , H03F2203/45138 , H03F2203/45151 , H03F2203/45171 , H03F2203/45206 , H03F2203/45226 , H03F2203/45528 , H03F2203/45536 , H03F2203/45586 , H03F2203/45588 , H03F2203/45618 , H03F2203/45728 , H03G3/34
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公开(公告)号：EP2317644A1
公开(公告)日：2011-05-04
申请号：EP09252519.5
申请日：2009-10-30
Applicant: ST-Ericsson SA
Inventor： Teng, Robert Hwat Hian
CPC classification number: H03F1/305 , H03F1/342 , H03F3/187 , H03F3/45179 , H03F3/45475 , H03F2200/03 , H03F2200/156 , H03F2200/18 , H03F2200/27 , H03F2200/312 , H03F2200/396 , H03F2200/408 , H03F2200/414 , H03F2200/417 , H03F2200/453 , H03F2200/456 , H03F2200/507 , H03F2200/522 , H03F2203/45101 , H03F2203/45138 , H03F2203/45151 , H03F2203/45171 , H03F2203/45206 , H03F2203/45226 , H03F2203/45528 , H03F2203/45536 , H03F2203/45586 , H03F2203/45588 , H03F2203/45618 , H03F2203/45728 , H03G3/34
Abstract: An amplifier (100, 300) comprises a main amplification stage (40) and an auxiliary amplification stage (50). An input of the main amplification stage (40) and an input of the auxiliary amplification stage (50) are coupled to a common node (30), and an output of the main amplification stage (40) is coupled to an output node (20). During activation, before power is supplied to the main amplification stage (40), the output node (30) is coupled to a reference voltage (V REF ). A quiescent voltage is then established at the common node (30) by coupling power to the auxiliary amplification stage (50). Only then is power coupled to the main amplification stage (40) and the reference voltage (V REF ) de-coupled from the output node (20).
Abstract translation: 放大器（100,300）包括主放大级（40）和辅助放大级（50）。 主放大级（40）的输入和辅助放大级（50）的输入耦合到公共节点（30），并且主放大级（40）的输出耦合到输出节点（20） ）。 在激活期间，在向主放大级（40）供电之前，输出节点（30）耦合到参考电压（V REF）。 然后通过将功率耦合到辅助放大级（50），在公共节点（30）处建立静态电压。 只有这时功率耦合到主放大级（40）和从输出节点（20）去耦合的参考电压（V REF）。
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