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Patent Agency Ranking
公开(公告)号：US09887674B2
公开(公告)日：2018-02-06
申请号：US15232422
申请日：2016-08-09
Applicant: Dialog Semiconductor (UK) Limited
Inventor： Carlos Zamarreno Ramos , Ambreesh Bhattad , Frank Kronmueller
CPC classification number: H03F1/342 , H03F1/14 , H03F3/193 , H03F3/45179 , H03F3/45475 , H03F2200/135 , H03F2200/153 , H03F2200/297 , H03F2200/36 , H03F2200/411 , H03F2200/462 , H03F2200/474
Abstract: A multi-stage amplifier, comprising a first amplifier stage is presented. The output of the first amplifier stage is coupled to a first terminal of a capacitor having a controllable capacitance. The input of a second amplifier stage is coupled to the output of the first amplifier stage and the first terminal of the capacitor. The output of the second amplifier stage is coupled to a second terminal of the capacitor and an output of the multi-stage amplifier. The input of a current sensing circuit is coupled with the output of the multi-stage amplifier. A control signal generator is coupled between the output of the current sensing circuit and a control terminal of the capacitor. The control signal generator provides a control signal to the capacitor in order to control or vary the capacitance of the capacitor.
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公开(公告)号：US20170093350A1
公开(公告)日：2017-03-30
申请号：US15232422
申请日：2016-08-09
Applicant: Dialog Semiconductor (UK) Limited
Inventor： Carlos Zamarreno Ramos , Ambreesh Bhattad , Frank Kronmueller
CPC classification number: H03F1/342 , H03F1/14 , H03F3/193 , H03F3/45179 , H03F3/45475 , H03F2200/135 , H03F2200/153 , H03F2200/297 , H03F2200/36 , H03F2200/411 , H03F2200/462 , H03F2200/474
Abstract: A multi-stage amplifier, comprising a first amplifier stage is presented. The output of the first amplifier stage is coupled to a first terminal of a capacitor having a controllable capacitance. The input of a second amplifier stage is coupled to the output of the first amplifier stage and the first terminal of the capacitor. The output of the second amplifier stage is coupled to a second terminal of the capacitor and an output of the multi-stage amplifier. The input of a current sensing circuit is coupled with the output of the multi-stage amplifier. A control signal generator is coupled between the output of the current sensing circuit and a control terminal of the capacitor. The control signal generator provides a control signal to the capacitor in order to control or vary the capacitance of the capacitor.
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公开(公告)号：US10545521B2
公开(公告)日：2020-01-28
申请号：US15232408
申请日：2016-08-09
Applicant: Dialog Semiconductor (UK) Limited
Inventor： Carlos Zamarreno Ramos , Ambreesh Bhattad , Frank Kronmueller
IPC: G05F1/575
Abstract: A linear regulator with a pass device having a first terminal, a second terminal and a drive terminal is presented. The first terminal of the pass device is coupled with the supply voltage of the linear regulator. The second terminal of the pass device is coupled with the output of the linear regulator. A driver stage is coupled with the supply voltage of the linear regulator, and the drive terminal of the pass device drives the pass device with a driving voltage. A compensating circuit compensates for a change in a voltage difference between the drive terminal of the pass device and the supply voltage of the linear regulator.
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公开(公告)号：US20190187735A1
公开(公告)日：2019-06-20
申请号：US16223174
申请日：2018-12-18
Applicant: Dialog Semiconductor (UK) Limited
Inventor： Carlos Zamarreno Ramos , Frank Kronmueller , Ambreesh Bhattad
IPC: G05F1/575
CPC classification number: G05F1/575
Abstract: A voltage regulator is presented. The output node of the voltage regulator is coupled to an output capacitor via a conductive path that exhibits a parasitic inductance. The voltage regulator has an output amplification stage for deriving the output current at the output node from the input voltage at the input node in dependence of a drive voltage at an intermediate node of the voltage regulator. The voltage regulator has an intermediate amplification stage for providing the drive voltage at the intermediate node based on a differential output voltage. A differential amplification stage determines the differential output voltage in dependence of the output voltage and in dependence of a reference voltage. The voltage regulator has a sensing unit to provide a load indication which is indicative of the output current and a variable impedance coupled to the intermediate node, where the variable impedance is dependent on the load indication.
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公开(公告)号：US20170090495A1
公开(公告)日：2017-03-30
申请号：US15232408
申请日：2016-08-09
Applicant: Dialog Semiconductor (UK) Limited
Inventor： Carlos Zamarreno Ramos , Ambreesh Bhattad , Frank Kronmueller
IPC: G05F1/575
CPC classification number: G05F1/575
Abstract: A linear regulator with a pass device having a first terminal, a second terminal and a drive terminal is presented. The first terminal of the pass device is coupled with the supply voltage of the linear regulator. The second terminal of the pass device is coupled with the output of the linear regulator. A driver stage is coupled with the supply voltage of the linear regulator, and the drive terminal of the pass device drives the pass device with a driving voltage. A compensating circuit compensates for a change in a voltage difference between the drive terminal of the pass device and the supply voltage of the linear regulator.
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