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公开(公告)号：US10659033B2
公开(公告)日：2020-05-19
申请号：US15802787
申请日：2017-11-03
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sujan Kundapur Manohar , Michael James Mills , Justin Patrick Vogt
Abstract: A power supply system for USB Power Delivery includes a current source drive circuit to control a power FET to regulate the supply of power along a power path. The current source drive circuit includes a cascode current source and a cascode protection circuit formed by a source follower and a feedback voltage divider. The source follower can be a transistor with its gate connected to a cascode node between upper- and lower-stage transistors of the cascode current source. The divider node of the voltage divider is connected to the gate of the lower-stage transistor. The current source drive circuit can operate within the gate-source voltage specifications of 30-volt DEPMOS devices, and can provide high output impedance to the gate of power FET and a current limit circuit during current limiting operation, without requiring an extra high-voltage mask during fabrication.
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公开(公告)号：US10833501B2
公开(公告)日：2020-11-10
申请号：US15801925
申请日：2017-11-02
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Justin Patrick Vogt , Michael James Mills
Abstract: A power circuit having a reverse voltage recovery boost circuit that speeds up a recovery time of the power circuit after a reverse voltage condition has cleared is provided. The power circuit includes a reverse voltage detector that detects the reverse voltage condition. After the reverse voltage condition clears, the reverse voltage recovery boost circuit transfers a portion of power to one transistor that is stored in another transistor thereby transitioning the one transistor from a non-conductive state to a conductive state, which allows a transfer of power from the input voltage to the output voltage.
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公开(公告)号：US10698008B2
公开(公告)日：2020-06-30
申请号：US15815218
申请日：2017-11-16
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Michael James Mills
IPC: G01R35/00 , G05F1/46 , G01R19/10 , G01R19/252 , G01R19/165 , G01R19/14
Abstract: A current-sense ratio calibration system includes a power field effect transistor (FET) integrated circuit (IC) that includes a regulator FET to regulate current through a power path and a sense FET to provide a sense current to a sense path. The regulator FET and sense FET have an intended current-sense ratio. The system calibrates the current-sense ratio by applying proportioned stimulus signals to the power and sense paths, the proportion being the intended current-sense ratio. The calibration circuitry compares a measurement of a sense path circuit parameter made during the stimulus application to a measurement of the parameter made not during the stimulus application to derive an error term used to calibrate for any sources of error in the current-sense ratio.
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Patent Agency Ranking
公开(公告)号：US10671105B2
公开(公告)日：2020-06-02
申请号：US15913321
申请日：2018-03-06
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Michael James Mills , Anand Kudari , Timothy Bryan Merkin
Abstract: An apparatus includes an amplifier configured to compare a feedback input, corresponding to a voltage of an output voltage node, with respect to a reference input and to provide a control output to control the output voltage node based on a difference between the feedback input and the reference input. At least two source circuits are coupled with the output voltage node. Each of the source circuits are configured to provide respective voltage sources to supply electrical power to the output voltage node.
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公开(公告)号：US11493976B2
公开(公告)日：2022-11-08
申请号：US16366819
申请日：2019-03-27
Applicant: Texas Instruments Incorporated
Inventor： Michael James Mills , Mohammad Atiqur Rahman , Eric Beljaars , Nagesh Narayana Swamy
IPC: H03K17/0812 , G06F1/3206
Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to allow dynamic changing between current limiting methods. A power delivery controller comprising: a power control device; a first current control device, the first current control device to control the power control device when a current level associated with a current flowing between a first device and a second device exceeds a first adjustable current threshold value; a second current control device to control the power control device when the current level exceeds a second adjustable current threshold value; and a configuration manager to, during runtime, set a first configuration setting of the first current control device and a second configuration setting of the second current control device, the first configuration setting and second configuration setting based on a negotiated contract corresponding to the first device and the second device.
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公开(公告)号：US20200280309A1
公开(公告)日：2020-09-03
申请号：US16877128
申请日：2020-05-18
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sujan Kundapur Manohar , Michael James Mills , Justin Patrick Vogt
IPC: H03K17/14 , H03K17/06 , G06F13/42 , G05F3/24 , H03K17/687
Abstract: A power supply system for USB Power Delivery includes a current source drive circuit to control a power FET to regulate the supply of power along a power path. The current source drive circuit includes a cascode current source and a cascode protection circuit formed by a source follower and a feedback voltage divider. The source follower can be a transistor with its gate connected to a cascode node between upper- and lower-stage transistors of the cascode current source. The divider node of the voltage divider is connected to the gate of the lower-stage transistor. The current source drive circuit can operate within the gate-source voltage specifications of 30-volt DEPMOS devices, and can provide high output impedance to the gate of power FET and a current limit circuit during current limiting operation, without requiring an extra high-voltage mask during fabrication.
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公开(公告)号：US11575372B2
公开(公告)日：2023-02-07
申请号：US16877128
申请日：2020-05-18
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sujan Kundapur Manohar , Michael James Mills , Justin Patrick Vogt
Abstract: A power supply system for USB Power Delivery includes a current source drive circuit to control a power FET to regulate the supply of power along a power path. The current source drive circuit includes a cascode current source and a cascode protection circuit formed by a source follower and a feedback voltage divider. The source follower can be a transistor with its gate connected to a cascode node between upper- and lower-stage transistors of the cascode current source. The divider node of the voltage divider is connected to the gate of the lower-stage transistor. The current source drive circuit can operate within the gate-source voltage specifications of 30-volt DEPMOS devices, and can provide high output impedance to the gate of power FET and a current limit circuit during current limiting operation, without requiring an extra high-voltage mask during fabrication.
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公开(公告)号：US20200310512A1
公开(公告)日：2020-10-01
申请号：US16366819
申请日：2019-03-27
Applicant: Texas Instruments Incorporated
Inventor： Michael James Mills , Mohammad Atiqur Rahman , Eric Beljaars , Nagesh Narayana Swamy
IPC: G06F1/3206 , H03K17/0812
Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to allow dynamic changing between current limiting methods. A power delivery controller comprising: a power control device; a first current control device, the first current control device to control the power control device when a current level associated with a current flowing between a first device and a second device exceeds a first adjustable current threshold value; a second current control device to control the power control device when the current level exceeds a second adjustable current threshold value; and a configuration manager to, during runtime, set a first configuration setting of the first current control device and a second configuration setting of the second current control device, the first configuration setting and second configuration setting based on a negotiated contract corresponding to the first device and the second device.
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