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公开(公告)号：US20240281013A1
公开(公告)日：2024-08-22
申请号：US18649575
申请日：2024-04-29
发明人： Agostino Macerola
摘要： An apparatus includes a first switch coupled between a first voltage source and input/output (I/O) circuitry of a memory device, wherein the first voltage source is to supply power to core memory circuitry of the memory device. A second switch is coupled between a second voltage source and the I/O circuitry. Control logic is coupled with the first and second switches and to cause the second switch to be activated to permit current to flow from the second voltage source to the I/O circuitry. The control logic, in response to detecting a current draw from the I/O circuitry that satisfies a first threshold criterion, causes the first switch to be activated.
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公开(公告)号：US20230393600A1
公开(公告)日：2023-12-07
申请号：US18452005
申请日：2023-08-18
申请人： ROHM CO., LTD.
发明人： Isao TAKOBE
摘要： A linear power supply circuit includes: an output stage provided between an input terminal to which an input voltage is applied and an output terminal to which an output voltage is applied and including a first output transistor and a second output transistor connected in parallel with each other; a driver configured to drive the first and second output transistors based on the difference between a voltage based on the output voltage and a reference voltage; and a potential difference suppressor configured to suppress a potential difference between the control terminal of the first output transistor and the control terminal of the second output transistor.
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3.发明申请公开(公告)号：US20180329440A1
公开(公告)日：2018-11-15
申请号：US15977013
申请日：2018-05-11
发明人： Mihail Jefremow , Dan Ciomaga , Gennadii Tatarchenkov , Stephan Drebinger , Fabio Rigoni , Alessandro Angeli , Petrus Hendrikus Seesink
摘要： A digital voltage regulator and a method to regulate an output voltage at an output node based on an input voltage is presented. The regulator has a driver stage with N driver slices, with N>1. Each of the N driver slices can be activated or deactivated individually. A driver slice comprises a current source to provide an output current component to the output node, if the driver slice is activated. Furthermore, the regulator has a control unit to activate a number n of the N driver slices, based on a deviation of a feedback voltage from a reference voltage, where the feedback voltage is dependent on the output voltage.
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公开(公告)号：US10078342B2
公开(公告)日：2018-09-18
申请号：US15192478
申请日：2016-06-24
发明人： Marcel A. Kossel
摘要： A voltage regulator comprising an error amplifier, a pass transistor and a buffer circuit arranged between the error amplifier and the pass transistor. The buffer circuit comprises a load detector configured to detect a load current of the regulator by monitoring an output signal of the error amplifier. The buffer circuit further comprises a load compensator configured to receive a load signal from the load detector. The load signal indicates the load of the regulator. The load compensator is further configured to change its output impedance based on the load signal such that variations of the load of the voltage regulator are compensated. There is additionally provided a corresponding system, a corresponding method and a corresponding design structure.
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公开(公告)号：US20180188755A1
公开(公告)日：2018-07-05
申请号：US15860998
申请日：2018-01-03
发明人： Wilhelm Florin
CPC分类号： G05F1/575 , G05F1/563 , G05F1/565 , G05F1/567 , G05F1/571 , G05F1/577 , G05F1/595 , H02M1/08 , H02M3/158 , H02M2001/008 , H02M2001/009
摘要： An electrical function group with a control device and a first voltage regulator, the control device having a supply voltage input, the first voltage regulator having a first supply voltage input and a first supply voltage output and being designed for connection to a supply voltage source via the first supply voltage input and to supply the control device via the first supply voltage output, the first supply voltage output and the supply voltage input being connected together. A second voltage regulator is also provided having a second supply voltage input and a second supply voltage output, the second voltage regulator being designed to be connected to the supply voltage source via the second supply voltage input and to supply the first voltage regulator and the control device via the second supply voltage output, the second supply voltage output and the first supply voltage input being connected to one another.
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公开(公告)号：US20180164843A1
公开(公告)日：2018-06-14
申请号：US15834903
申请日：2017-12-07
发明人： Ping LUO , Shuangjie QIU , Kangle WANG , Zelang LIU , Long HUANG
IPC分类号： G05F1/56 , H03K17/0416 , H03K17/041 , H03K17/56
CPC分类号： G05F1/56 , G05F1/461 , G05F1/462 , G05F1/563 , H03K17/04106 , H03K17/04163 , H03K17/56
摘要： The present invention relates to a linear regulator with real-time frequency compensation function, which belongs to the technical field of analog integrated circuits. The part of frequency compensation of the present invention includes the dual-frequency compensation networks and compensation transfer switcher, and the pulse delay circuit. The dual-frequency compensation networks and compensation transfer switcher provide the corresponding frequency compensation for linear regulator under two different capacitive loads. The pulse delay circuit generates a set of signals which have a delay related to the switch-pulse signals to control the access of the compensation transfer switcher and capacitive load. The advantages of the present invention are that the circuit structure is simple, without complex feedback control circuits, the excessive power dissipation is extremely low, and it is applied to such special use of linear regulator with switched capacitive load that it can option the loop frequency compensation in real-time to ensure the linear regulator has the optimal stability and load transient response.
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公开(公告)号：US09977444B1
公开(公告)日：2018-05-22
申请号：US15437095
申请日：2017-02-20
申请人： Beken Corporation
发明人： Ronghui Kong , Jiazhou Liu
摘要： A power management system comprises an input power detector configured to generate a first enablement signal by detecting whether a first voltage is supplied; a first output stage connected to the input power detector and configured to receive and regulate the first voltage upon receiving the first enablement signal; an error operational amplifier is connected to the first output stage, a first input port of the error operational amplifier is configured to receive a first reference voltage, a second input port of the error operational amplifier is connected to a connection point of a first resistor and a second resistor, the first resistor is connected to the first output stage, the second resistor is connected to ground, and a system output port is located at the connection of the output port of the first output stage and the first resistor, to drive a load.
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公开(公告)号：US09954460B2
公开(公告)日：2018-04-24
申请号：US15288606
申请日：2016-10-07
申请人： MACROBLOCK. INC.
发明人： Lon-Kou Chang , Che-Wei Chang , Ting-Ta Chiang , Shi-Jie Liao
摘要： A voltage control device includes an output module and a control module. The output module provides an output current at an output terminal thereof based on a control voltage. The control module includes a comparing circuit, a capacitor, a charging circuit and a discharging circuit. The comparing circuit compares a to-be-compared voltage, which is associated at least with a to-be-controlled voltage at the output terminal of the output module, with a predetermined reference voltage to generate a comparison signal. The capacitor provides the control voltage. The charging circuit is operable to charge the capacitor based on the comparison signal. The discharging circuit is operable to discharge the capacitor based on the comparison signal.
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公开(公告)号：US09893561B2
公开(公告)日：2018-02-13
申请号：US14228369
申请日：2014-03-28
发明人： Hsin-Chung Niu , Yuan-Sheng Lee , Po-Wen Hsueh
CPC分类号： H02J9/061 , G05F1/563 , H02H3/08 , H02H9/02 , Y10T307/615
摘要： A power supply conversion system receives an external power source to supply power to a load. The power supply conversion system includes at least one main power apparatus, at least one auxiliary power apparatus, a main switch, an auxiliary switch, and a control unit. The control unit turns on the main switch to restore the external power source when the control unit detects that the external power source is normally restored, and jointly supply power to the load with the auxiliary power apparatus. Especially, the output voltage of the main power apparatus is greater than the output voltage of the auxiliary power apparatus. In addition, the control unit disconnects the auxiliary power apparatus supplying power to the load when the control unit detects that the main power apparatus completely supplies power to the load.
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公开(公告)号：US20170371365A1
公开(公告)日：2017-12-28
申请号：US15192478
申请日：2016-06-24
发明人： Marcel A. Kossel
IPC分类号： G05F1/575
摘要： A voltage regulator comprising an error amplifier, a pass transistor and a buffer circuit arranged between the error amplifier and the pass transistor. The buffer circuit comprises a load detector configured to detect a load current of the regulator by monitoring an output signal of the error amplifier. The buffer circuit further comprises a load compensator configured to receive a load signal from the load detector. The load signal indicates the load of the regulator. The load compensator is further configured to change its output impedance based on the load signal such that variations of the load of the voltage regulator are compensated. There is additionally provided a corresponding system, a corresponding method and a corresponding design structure.
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