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公开(公告)号：US09568508B2
公开(公告)日：2017-02-14
申请号：US14188060
申请日：2014-02-24
Applicant: Dialog Semiconductor GmbH
Inventor： Horst Knoedgen , Frank Kronmueller
CPC classification number: G01R19/0092 , G01R17/02 , G01R35/005 , H02M2001/0009 , H03K2217/0027
Abstract: The present document relates to the measurement of the current through a transistor. In particular, the present document relates to a circuit arrangement which allows an accurate measurement of the current through a power transistor. A circuit arrangement is described. The circuit arrangement is configured to provide an indication of a current flowing through a pass switch, when the pass switch is arranged in parallel to the circuit arrangement. The circuit arrangement comprises a matching unit which comprises a switch bank comprising a plurality of parallel reference switches; a resistor bank comprising a plurality of serial reference resistors; and a reference current source configured to provide a reference current flowing through the switch bank and the resistor bank. The resistor bank and the switch bank are arranged in series. The switch bank is adapted in accordance to a voltage dependent resistance of the pass switch, and the resistor bank is adapted in accordance to a voltage independent resistance of the pass switch.
Abstract translation: 本文件涉及通过晶体管的电流的测量。 特别地，本文件涉及允许精确测量通过功率晶体管的电流的电路装置。 描述电路布置。 当通路开关与电路装置并联布置时，电路装置被配置为提供流过通过开关的电流的指示。 该电路装置包括匹配单元，该匹配单元包括一个包括多个并行参考开关的开关组; 包括多个串联参考电阻器的电阻器组; 以及参考电流源，被配置为提供流过开关组和电阻器组的参考电流。 电阻器组和开关组串联布置。 开关组根据通过开关的电压依赖电阻进行调节，电阻组根据通过开关的电压独立电阻进行调节。
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2.发明授权公开(公告)号：US09348348B2
公开(公告)日：2016-05-24
申请号：US14191624
申请日：2014-02-27
Applicant: Dialog Semiconductor GmbH
Inventor： Frank Kronmueller , Mahir Uka
Abstract: Multi-stage amplifiers, such as linear regulators or linear voltage regulators (e.g. low-dropout regulators) configured to provide a constant output voltage subject to load transients are presented. A multi-stage amplifier, having a differential amplification stage configured to provide a stage output voltage at an output node, based on a first input voltage and a second input voltage is presented. Furthermore, the multi-stage amplifier comprises a second amplification stage comprising an amplifier current source configured to provide an amplifier current; and an amplifier transistor arranged in series with the amplifier current source; wherein a gate of the amplifier transistor is coupled to the output node of the differential amplification stage. In addition, the multi-stage amplifier comprises a detection circuit.
Abstract translation: 提出了多级放大器，例如线性稳压器或线性稳压器（例如低压差稳压器），其被配置为提供经受负载瞬变的恒定输出电压。 提供了一种具有差分放大级的多级放大器，其被配置为基于第一输入电压和第二输入电压在输出节点处提供级输出电压。 此外，多级放大器包括第二放大级，其包括被配置为提供放大器电流的放大器电流源; 以及与所述放大器电流源串联布置的放大器晶体管; 其中所述放大器晶体管的栅极耦合到所述差分放大级的输出节点。 此外，多级放大器包括检测电路。
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公开(公告)号：US20150177757A1
公开(公告)日：2015-06-25
申请号：US14147685
申请日：2014-01-06
Applicant: Dialog Semiconductor GmbH
Inventor： Ambreesh Bhattad , Frank Kronmueller , Alper Ucar , Hande Kurnaz
IPC: G05F1/575
Abstract: Methods and circuits for linearly controlling a limited, constant current during startup of LDOs, amplifiers, or DC-to-DC converters independent of load capacitor size and controlling a clean transition without glitches from a constant current (CC) mode during startup to a constant voltage (CV) mode during normal operation (CC-CV method) are disclosed. The constant current control loop and the constant voltage control loop are implemented in such a way that at the end of startup the voltage loop has taken over control and the current loop is moved far away from its active transistor region, allowing a switch of modes to occur without any nasty transitions on the output.
Abstract translation: 用于线性控制LDO，放大器或DC-DC转换器启动期间有限的恒定电流的方法和电路，与负载电容器尺寸无关，并控制清洁过渡，而不会在启动期间从恒定电流（CC）模式发生毛刺到恒定 公开了正常工作期间的电压（CV）模式（CC-CV方法）。 恒流控制回路和恒压控制回路以这样的方式实现，使得在启动结束时，电压回路已经接管并且电流回路远离其有源晶体管区域移动，允许模式切换到 在输出上没有任何令人讨厌的过渡。
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公开(公告)号：US20150015331A1
公开(公告)日：2015-01-15
申请号：US14191629
申请日：2014-02-27
Applicant: Dialog Semiconductor GmbH
Inventor： Frank Kronmueller
CPC classification number: H03G3/30 , G05F1/575 , H03F3/45179 , H03G3/004
Abstract: The present document relates to multi-stage amplifiers, such as linear regulators or linear voltage regulators (e.g. low-dropout regulators) configured to provide a constant output voltage subject to load transients. A multi-stage amplifier is described, having a differential amplification stage which comprises a differential transistor pair. The differential amplification stage is configured to provide a stage output voltage at a stage output node of the differential transistor pair, based on a first input voltage at a first stage input node and a second input voltage at a second stage input node. The differential transistor pair also comprises a reference node. The differential amplification stage further comprises an active load comprising a first diode transistor coupled to the reference node and a first mirror transistor coupled to the stage output node.
Abstract translation: 本文件涉及多级放大器，例如线性稳压器或线性稳压器（例如低压差稳压器），其被配置为提供经受负载瞬变的恒定输出电压。 描述了具有包括差分晶体管对的差分放大级的多级放大器。 差分放大级被配置为基于第一级输入节点处的第一输入电压和第二级输入节点处的第二输入电压来在差分晶体管对的级输出节点处提供级输出电压。 差分晶体管对还包括参考节点。 差分放大级还包括有源负载，其包括耦合到参考节点的第一二极管晶体管和耦合到级输出节点的第一反射镜晶体管。
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公开(公告)号：US09798340B2
公开(公告)日：2017-10-24
申请号：US14521765
申请日：2014-10-23
Applicant: Dialog Semiconductor GmbH
Inventor： Ambreesh Bhattad , Frank Kronmueller
CPC classification number: G05F1/56 , G05F1/562 , G05F1/569 , G05F1/573 , G05F1/5735 , H02H9/001 , H02M1/36
Abstract: A circuit is provided with inrush current protection through control of the output current at start-up by a current source that does not rely on the output capacitor and which provides a smooth transition from a controlled current mode during a start-up phase to a voltage regulation mode.
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Patent Agency Ranking
公开(公告)号：US20170122987A1
公开(公告)日：2017-05-04
申请号：US15407285
申请日：2017-01-17
Applicant: Dialog Semiconductor GmbH
Inventor： Horst Knoedgen , Frank Kronmueller
CPC classification number: G01R19/0092 , G01R17/02 , G01R35/005 , H02M2001/0009 , H03K2217/0027
Abstract: The present document relates to the measurement of the current through a transistor. In particular, the present document relates to a circuit arrangement which allows an accurate measurement of the current through a power transistor. A circuit arrangement is described. The circuit arrangement is configured to provide an indication of a current flowing through a pass switch, when the pass switch is arranged in parallel to the circuit arrangement. The circuit arrangement comprises a matching unit which comprises a switch bank comprising a plurality of parallel reference switches; a resistor bank comprising a plurality of serial reference resistors; and a reference current source configured to provide a reference current flowing through the switch bank and the resistor bank. The resistor bank and the switch bank are arranged in series. The switch bank is adapted in accordance to a voltage dependent resistance of the pass switch, and the resistor bank is adapted in accordance to a voltage independent resistance of the pass switch.
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公开(公告)号：US09541933B2
公开(公告)日：2017-01-10
申请号：US14550923
申请日：2014-11-22
Applicant: Dialog Semiconductor GmbH
Inventor： Horst Knoedgen , Frank Kronmueller
CPC classification number: G05F1/575 , H02M3/156 , H02M2001/0019 , H02M2001/0045 , H02M2003/1566
Abstract: The present document relates to voltage regulators. In particular, the present document relates to a method and a corresponding voltage regulator with improved performance subject to load transients. A regulator configured to provide a load current at an output voltage in dependence of an input voltage is described. The regulator comprises a core regulator configured to provide a core current at a core output voltage in dependence of the input voltage. Furthermore, the regulator comprises current sensing means configured to provide an indication of the core current. The output voltage is dependent on the core output voltage and on a voltage drop at the current sensing means. In addition, the regulator comprises a current source configured to provide an auxiliary current based on the indication of the core current. The load current is dependent on the core current and on the auxiliary current.
Abstract translation: 本文件涉及电压调节器。 特别地，本文件涉及一种具有经受负载瞬变的改进性能的方法和相应的电压调节器。 描述了一种被配置成根据输入电压提供输出电压的负载电流的调节器。 调节器包括核心调节器，其被配置为根据输入电压提供核心电流的核心输出电压。 此外，调节器包括被配置为提供核心电流的指示的电流感测装置。 输出电压取决于核心输出电压和电流检测装置上的电压降。 此外，调节器包括被配置为基于核心电流的指示来提供辅助电流的电流源。 负载电流取决于磁芯电流和辅助电流。
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公开(公告)号：US09207696B1
公开(公告)日：2015-12-08
申请号：US14547264
申请日：2014-11-19
Applicant: Dialog Semiconductor GmbH
Inventor： Frank Kronmueller , Ambreesh Bhattad
IPC: G05F1/56
CPC classification number: G05F1/563 , G05F1/468 , G05F1/56 , G05F1/562 , G05F1/571 , H03F3/3027 , H03F3/45273 , H03F3/68 , H03F2200/129 , H03F2200/153 , H03F2200/474 , H03F2200/78 , H03F2203/45116
Abstract: Multi-stage amplifiers, such as linear regulators, configured to provide a constant output voltage subject to load transients, are described. The multi-stage amplifier includes a first amplification stage which activates or deactivates a first output stage in response to an input voltage at an input node. The first output stage is configured to source a current at an output node of the multi-stage amplifier from a high potential, when activated. Furthermore, the multi-stage amplifier includes a second amplification stage configured to activate or to deactivate a second output stage in response to the input voltage at the input node. The second output stage is configured to sink a current at the output node of the multi-stage amplifier to a low potential, when activated. The first amplification stage and the second amplification stage are configured to activate the first output stage and the Second output stage in a mutually exclusive manner.
Abstract translation: 描述了被配置为提供受负载瞬变影响的恒定输出电压的多级放大器，例如线性稳压器。 多级放大器包括第一放大级，其响应于输入节点处的输入电压激活或去激活第一输出级。 第一输出级被配置为当激活时从多电平放大器的输出节点处的电流源于高电位。 此外，多级放大器包括第二放大级，其被配置为响应于输入节点处的输入电压来激活或去激活第二输出级。 第二输出级被配置为当激活时将多级放大器的输出节点处的电流吸收到低电位。 第一放大级和第二放大级被配置为以相互排斥的方式激活第一输出级和第二输出级。
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公开(公告)号：US20150263683A1
公开(公告)日：2015-09-17
申请号：US14546043
申请日：2014-11-18
Applicant: Dialog Semiconductor GmbH
Inventor： Frank Kronmueller , Ambreesh Bhattad
CPC classification number: H03F3/45071 , G05F1/56 , G05F3/262 , H03F1/223 , H03F1/342 , H03F3/04 , H03F3/16 , H03F3/45381 , H03F2200/129 , H03F2200/408 , H03F2203/45674
Abstract: The present document relates to amplifiers, notably multi-stage amplifiers, such as linear regulators or linear voltage regulators (e.g. low-dropout regulators) configured to provide a constant output voltage subject to load transients. An amplifier comprising an output stage for providing an output current at an output voltage, in dependence of an input voltage at a stage input node of the output stage, is described. The output stage comprises a first input transistor; wherein a gate of the first input transistor is coupled to the stage input node of the output stage. Furthermore, the output stage comprises a first diode transistor; wherein the first diode transistor is arranged in series with the input transistor. In addition, the output stage comprises a pass device configured to provide the output current at the output voltage; wherein the first diode transistor and the pass device form a current mirror.
Abstract translation: 本文件涉及放大器，特别是多级放大器，例如线性稳压器或线性稳压器（例如低压差稳压器），其被配置为提供经受负载瞬变的恒定输出电压。 描述了放大器，其包括用于根据输出级的级输入节点处的输入电压在输出电压处提供输出电流的输出级。 输出级包括第一输入晶体管; 其中所述第一输入晶体管的栅极耦合到所述输出级的所述级输入节点。 此外，输出级包括第一二极管晶体管; 其中所述第一二极管晶体管与所述输入晶体管串联布置。 另外，输出级包括配置成在输出电压下提供输出电流的通过器件; 其中所述第一二极管晶体管和所述通过器件形成电流镜。
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公开(公告)号：US10101369B2
公开(公告)日：2018-10-16
申请号：US15407285
申请日：2017-01-17
Applicant: Dialog Semiconductor GmbH
Inventor： Horst Knoedgen , Frank Kronmueller
Abstract: The present document relates to the measurement of the current through a transistor. In particular, the present document relates to a circuit arrangement which allows an accurate measurement of the current through a power transistor. A circuit arrangement is described. The circuit arrangement is configured to provide an indication of a current flowing through a pass switch, when the pass switch is arranged in parallel to the circuit arrangement. The circuit arrangement comprises a matching unit which comprises a switch bank comprising a plurality of parallel reference switches; a resistor bank comprising a plurality of serial reference resistors; and a reference current source configured to provide a reference current flowing through the switch bank and the resistor bank. The resistor bank and the switch bank are arranged in series. The switch bank is adapted in accordance to a voltage dependent resistance of the pass switch, and the resistor bank is adapted in accordance to a voltage independent resistance of the pass switch.
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