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公开(公告)号：US20160191006A1
公开(公告)日：2016-06-30
申请号：US14587863
申请日：2014-12-31
Applicant: Texas Instruments Incorporated
Inventor： Dina Reda El-Damak , Rajarshi Mukhopadhyay , Jeffrey Anthony Morroni
IPC: H03F3/45
CPC classification number: H03F3/45645 , H03F3/3028 , H03F3/45206 , H03F3/45233 , H03F3/45273 , H03F3/45771 , H03F2203/45002 , H03F2203/45048 , H03F2203/45078 , H03F2203/45116
Abstract: An amplifier receives a differential signal and, in response, generates a first negative input current and a first positive input current. In a first operating mode, the amplifier receives a second differential signal, and, in response, generates a second negative input current and a second positive input current. In a second operating mode, the amplifier receives the second differential signal, and, in response, generates a third negative input current and a third positive input current. When the device is operating in the first operating mode, the first negative input current is summed with the second negative input current and the first positive input current is summed with the second positive input current. When the device is operating in the second operating mode, the first negative input current is summed with the third negative input current and the first positive input current is summed with the third positive input current.
Abstract translation: 放大器接收差分信号，作为响应，产生第一负输入电流和第一正输入电流。 在第一操作模式中，放大器接收第二差分信号，并且作为响应，产生第二负输入电流和第二正输入电流。 在第二操作模式中，放大器接收第二差分信号，并且作为响应，产生第三负输入电流和第三正输入电流。 当器件在第一工作模式下工作时，第一个负输入电流与第二个负输入电流相加，第一个正输入电流与第二个正输入电流相加。 当器件在第二工作模式下工作时，第一个负输入电流与第三个负输入电流相加，第一个正输入电流与第三个正输入电流相加。
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公开(公告)号：US09726697B2
公开(公告)日：2017-08-08
申请号：US14588394
申请日：2014-12-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Dina Reda El-Damak , Jeffrey Morroni , Steven Mark Mercer
CPC classification number: G01R19/10 , G01R1/203 , G01R19/0092 , G01R31/40
Abstract: A voltage proportional to a sum of currents flowing though first and second coupled inductors is developed across a first capacitor common to first and second series RC networks if the RC networks are time constant-matched to the inductors. The first and second inductors are coupled between a first and second switched drive phase input terminal, respectively, and an apparatus output terminal. The first and second RC networks are coupled in parallel with the first and second inductor, respectively. Inverting and non-inverting inputs of an amplifier are coupled to junctions of third and fourth time constant-matched series RC networks coupled in parallel with the first and second inductors, respectively. The amplifier subtracts voltages sensed at the junctions to generate a difference signal proportional to a magnitude difference of the currents flowing through the inductors.
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公开(公告)号：US09473092B2
公开(公告)日：2016-10-18
申请号：US14587863
申请日：2014-12-31
Applicant: Texas Instruments Incorporated
Inventor： Dina Reda El-Damak , Rajarshi Mukhopadhyay , Jeffrey Anthony Morroni
IPC: H03F3/45
CPC classification number: H03F3/45645 , H03F3/3028 , H03F3/45206 , H03F3/45233 , H03F3/45273 , H03F3/45771 , H03F2203/45002 , H03F2203/45048 , H03F2203/45078 , H03F2203/45116
Abstract: An amplifier receives a differential signal and, in response, generates a first negative input current and a first positive input current. In a first operating mode, the amplifier receives a second differential signal, and, in response, generates a second negative input current and a second positive input current. In a second operating mode, the amplifier receives the second differential signal, and, in response, generates a third negative input current and a third positive input current. When the device is operating in the first operating mode, the first negative input current is summed with the second negative input current and the first positive input current is summed with the second positive input current. When the device is operating in the second operating mode, the first negative input current is summed with the third negative input current and the first positive input current is summed with the third positive input current.
Abstract translation: 放大器接收差分信号，作为响应，产生第一负输入电流和第一正输入电流。 在第一操作模式中，放大器接收第二差分信号，并且作为响应，产生第二负输入电流和第二正输入电流。 在第二操作模式中，放大器接收第二差分信号，并且作为响应，产生第三负输入电流和第三正输入电流。 当器件在第一工作模式下工作时，第一个负输入电流与第二个负输入电流相加，第一个正输入电流与第二个正输入电流相加。 当器件在第二工作模式下工作时，第一个负输入电流与第三个负输入电流相加，第一个正输入电流与第三个正输入电流相加。
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公开(公告)号：US20160187386A1
公开(公告)日：2016-06-30
申请号：US14588394
申请日：2014-12-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Dina Reda El-Damak , Jeffrey Morroni , Steven Mark Mercer
CPC classification number: G01R19/10 , G01R1/203 , G01R19/0092 , G01R31/40
Abstract: A voltage proportional to a sum of currents flowing though first and second coupled inductors is developed across a first capacitor common to first and second series RC networks if the RC networks are time constant-matched to the inductors. The first and second inductors are coupled between a first and second switched drive phase input terminal, respectively, and an apparatus output terminal. The first and second RC networks are coupled in parallel with the first and second inductor, respectively. Inverting and non-inverting inputs of an amplifier are coupled to junctions of third and fourth time constant-matched series RC networks coupled in parallel with the first and second inductors, respectively. The amplifier subtracts voltages sensed at the junctions to generate a difference signal proportional to a magnitude difference of the currents flowing through the inductors.
Abstract translation: 如果RC网络与电感器时间恒定匹配，则与通过第一和第二耦合电感器流动的电流之和成比例的电压跨越第一和第二串联RC网络公共的第一电容器被开发。 第一和第二电感器分别耦合在第一和第二开关驱动相位输入端子和装置输出端子之间。 第一和第二RC网络分别与第一和第二电感器并联耦合。 放大器的反相和非反相输入分别耦合到与第一和第二电感器并联耦合的第三和第四时间恒定匹配串联RC网络的结。 放大器减去在结处感测的电压，以产生与流过电感器的电流的幅度差成比例的差分信号。
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