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公开(公告)号：US20240419200A1
公开(公告)日：2024-12-19
申请号：US18818651
申请日：2024-08-29
Applicant: Kioxia Corporation
Inventor： Masayuki USUDA
Abstract: A voltage regulator includes an operational amplifier that compares a feedback voltage that is proportional to an output voltage and a predetermined reference voltage that corresponds to a desired output voltage. The operational amplifier controls the conduction state of an output transistor according to the comparison. A detecting circuit monitors the operating state of the operational amplifier, and in the case that the operational amplifier is not operating, outputs a signal which causes the output transistor to be placed in a non-conductive state.
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公开(公告)号：US20240332286A1
公开(公告)日：2024-10-03
申请号：US18593962
申请日：2024-03-03
Applicant: MEDIATEK INC.
Inventor： Yung-Ju Wen , Bo-Shih Huang
CPC classification number: H01L27/0266 , G05F1/569 , H01L27/0292 , H01L27/0296
Abstract: The present invention provides a power clamp cell including a power clamping circuit, a power routing and a global routing is disclosed. The power routing has at least a first vertical metal line and a first horizontal metal line, and the power routing is implemented by using a first metal layer in semiconductor process. The ground routing has at least a second vertical metal line and a second horizontal metal line, and the ground routing is implemented by using a second metal layer in the semiconductor process.
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3.发明公开公开(公告)号：US20230213955A1
公开(公告)日：2023-07-06
申请号：US17883886
申请日：2022-08-09
Applicant: Magnachip Semiconductor, Ltd.
Inventor： Gilsung ROH
Abstract: A low voltage drop output regulator and a method for controlling thereof for preventing an inrush current that occurs momentarily during an initial operation of a circuit are described. The low voltage drop output regulator includes a differential amplifier configured to output an amplified voltage by comparing a reference voltage with a feedback voltage, a first MOS transistor configured to output an output voltage to a drain terminal by receiving the amplified voltage in a gate terminal, and an inrush preventer connected between a power voltage terminal and a drive node to prevent the inrush current of the first MOS transistor during an initial operation period. The inrush preventer includes a determining unit and a limiter, and the limiter is configured only by a MOS transistor and a switch connected in series between a power voltage terminal and a drive node.
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公开(公告)号：US20230152830A1
公开(公告)日：2023-05-18
申请号：US18093838
申请日：2023-01-06
Applicant: Wolfspeed, Inc.
Inventor： James Richmond , Edward Robert Van Brunt , Philipp Steinmann
CPC classification number: G05F1/569 , G01R31/50 , G05F3/20 , H01L29/1608
Abstract: A transistor semiconductor die includes a first current terminal, a second current terminal, and a control terminal. A semiconductor structure is between the first current terminal, the second current terminal, and the control terminal and configured such that a resistance between the first current terminal and the second current terminal is based on a control signal provided at the control terminal. Short circuit protection circuitry is coupled between the control terminal and the second current terminal. In a normal mode of operation, the short circuit protection circuitry is configured to provide a voltage drop that is greater than a voltage of the control signal. In a short circuit protection mode of operation, the short circuit protection circuitry is configured to provide a voltage drop that is less than a voltage of the control signal.
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公开(公告)号：US20230137946A1
公开(公告)日：2023-05-04
申请号：US17517714
申请日：2021-11-03
Applicant: GlobalFoundries U.S. Inc.
Inventor： Siva K. Chinthu , Veerendranath P. Sundar
Abstract: An apparatus includes an amplifier, a pass transistor connected to a load and to an input of the amplifier, and a capacitor connected between the amplifier and the pass transistor.
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Patent Agency Ranking
公开(公告)号：US11602022B2
公开(公告)日：2023-03-07
申请号：US17132961
申请日：2020-12-23
Applicant: Koninklijke Fabriek Inventum B.V.
Inventor： Dennis Mulders
IPC: H05B45/12 , H05B45/14 , H05B45/345 , H05B47/25 , G05F1/573 , G05F1/565 , G05F1/569 , H05B6/12 , H05B41/285
Abstract: A circuit comprises an optical coupling including an illuminator optically coupled to an optical sensor to output a voltage from the optical sensor based on intensity of illumination from the illuminator. The circuit includes a voltage input node with a resistance connected in series between the voltage input and a Zener diode. A method includes powering an illuminator with current from a first voltage input node. The method includes sensing illumination level in illumination from the illuminator with a sensor and outputting output proportionate to illumination sensed by the sensor indicative of voltage detected at the voltage input node. The method can include limiting current between the voltage input node and the illuminator.
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公开(公告)号：US20220404851A1
公开(公告)日：2022-12-22
申请号：US17893772
申请日：2022-08-23
Applicant: KIOXIA CORPORATION
Inventor： Masayuki USUDA
Abstract: A voltage regulator includes an operational amplifier that compares a feedback voltage that is proportional to an output voltage and a predetermined reference voltage that corresponds to a desired output voltage. The operational amplifier controls the conduction state of an output transistor according to the comparison. A detecting circuit monitors the operating state of the operational amplifier, and in the case that the operational amplifier is not operating, outputs a signal which causes the output transistor to be placed in a non-conductive state.
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公开(公告)号：US11480984B2
公开(公告)日：2022-10-25
申请号：US16855533
申请日：2020-04-22
Applicant: MagnaChip Semiconductor, Ltd.
Inventor： Ju Sang Park , Hyung Sun Kim , Hyoung Kyu Kim
Abstract: A low dropout voltage regulator includes a differential amplifier configured to output an amplified voltage by comparing a feedback voltage with a reference voltage, a pass transistor configured to receive a power input voltage into a source terminal, the amplified voltage into a gate terminal, and output an output voltage into a drain terminal, distribution resistors connected between the drain terminal and the ground terminal, configured to generate the feedback voltage, and an inrush preventer, connected in parallel between the differential amplifier and the pass transistor, and configured to output a regulated amplified voltage into the gate terminal according to a control signal, wherein the inrush preventer comprises a determiner configured to output an enable signal that is turned on during an initial driving period, and a limiter configured to output the regulated amplified voltage according to the enable signal.
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公开(公告)号：US11429126B2
公开(公告)日：2022-08-30
申请号：US17209108
申请日：2021-03-22
Applicant: KIOXIA CORPORATION
Inventor： Masayuki Usuda
Abstract: A voltage regulator includes an operational amplifier that compares a feedback voltage that is proportional to an output voltage and a predetermined reference voltage that corresponds to a desired output voltage. The operational amplifier controls the conduction state of an output transistor according to the comparison. A detecting circuit monitors the operating state of the operational amplifier, and in the case that the operational amplifier is not operating, outputs a signal which causes the output transistor to be placed in a non-conductive state.
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10.发明申请公开(公告)号：US20210373587A1
公开(公告)日：2021-12-02
申请号：US17285907
申请日：2019-11-13
Applicant: ZTE CORPORATION
IPC: G05F1/569 , G01R31/52 , G01R31/54 , G01R1/36 , G01R1/30 , G01R31/40 , G01R31/28 , G01R31/66 , H03K5/24
Abstract: A detection and protection circuit includes: a comparator, six resistors, and two diodes. A first resistor is connected to a second resistor. The second resistor (30) is grounded. A positive input end, a negative input end, a power supply end, a ground end, and an output end of the comparator are connected to a third resistor, a fourth resistor, a power management device power supply pin, the ground, and a main controller. The other end of the third resistor is connected between the first resistor and the second resistor. The other end of the fourth resistor is connected to the first resistor. A first power supply is connected between the fourth resistor and the first resistor. A fifth resistor is connected to a sixth resistor. The sixth resistor (70) is grounded. The other end of the fifth resistor is connected to the main controller.
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