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公开(公告)号：US20200059109A1
公开(公告)日：2020-02-20
申请号：US16664417
申请日：2019-10-25
Applicant: Texas Instruments Incorporated
Inventor： Siew Hoon , Kevin Scoones , Jairo D. Olivares , Kai Zhu
IPC: H02J7/00 , H03K19/0185 , H03K17/687 , H02M3/00 , H03K17/12 , H03K17/06
Abstract: A driver circuit includes two high-side switches and a single low-side switch, output inductor, and output capacitor. By having multiple high-side switches, the driver can regulate power from multiple charging devices. The high-side switches share a channel with an input capacitor for that channel and the channels are connected to the low-side switch at a common node. When the capacitor for one of the channels becomes charged quickly, the capacitor of the other channel will balance itself with the charged capacitor. To avoid damaging the high-side switches, a low-impedance bridge and driver circuit is connected between the channels.
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公开(公告)号：US20200021196A1
公开(公告)日：2020-01-16
申请号：US16584610
申请日：2019-09-26
Applicant: Texas Instruments Incorporated
Inventor： Kevin Scoones , Orlando Lazaro , Alvaro Aguilar , Jeffrey Anthony Morroni , Reza Sharifi , Saurav Bandyopadhyay
IPC: H02M3/158
Abstract: In a described example, an apparatus includes a first switch coupled between a terminal for receiving an input voltage and a top plate node, and having a first control terminal; a second switch coupled between the top plate node and a switching node, and having a second control terminal; a third switch coupled between the switching node and a bottom plate node and having a third control terminal; a fourth switch coupled between the bottom plate node and a ground terminal, and having a fourth control terminal; a flying capacitor coupled between the top plate node and the bottom plate node; a fifth switch coupled between the top plate node and an auxiliary node; a sixth switch coupled between the auxiliary node and the bottom plate node; and an auxiliary capacitor coupled between the auxiliary control terminal and a ground terminal.
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公开(公告)号：US20190207405A1
公开(公告)日：2019-07-04
申请号：US15959575
申请日：2018-04-23
Applicant: Texas Instruments Incorporated
Inventor： Siew Hoon , Kevin Scoones , Jairo D. Olivares , Kai Zhu
IPC: H02J7/00 , H03K17/687 , H03K19/0185
CPC classification number: H02J7/0072 , H03K17/687 , H03K19/018521 , H03K2217/0063 , H03K2217/0072
Abstract: A driver circuit includes two high-side switches and a single low-side switch, output inductor, and output capacitor. By having multiple high-side switches, the driver can regulate power from multiple charging devices. The high-side switches share a channel with an input capacitor for that channel and the channels are connected to the low-side switch at a common node. When the capacitor for one of the channels becomes charged quickly, the capacitor of the other channel will balance itself with the charged capacitor. To avoid damaging the high-side switches, a low-impedance bridge and driver circuit is connected between the channels.
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公开(公告)号：US20190028031A1
公开(公告)日：2019-01-24
申请号：US16058859
申请日：2018-08-08
Applicant: Texas Instruments Incorporated
Inventor： Kevin Scoones , Orlando Lazaro , Alvaro Aguilar , Jeffrey Anthony Morroni , Reza Sharifi , Saurav Bandyopadhyay
CPC classification number: H02M3/1588 , H02M3/158 , H02M7/483 , H02M2001/0006
Abstract: In a described example, an apparatus includes a first switch coupled between a terminal for receiving an input voltage and a top plate node, and having a first control terminal; a second switch coupled between the top plate node and a switching node, and having a second control terminal; a third switch coupled between the switching node and a bottom plate node and having a third control terminal; a fourth switch coupled between the bottom plate node and a ground terminal, and having a fourth control terminal; a flying capacitor coupled between the top plate node and the bottom plate node; a fifth switch coupled between the top plate node and an auxiliary node; a sixth switch coupled between the auxiliary node and the bottom plate node; and an auxiliary capacitor coupled between the auxiliary control terminal and a ground terminal.
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公开(公告)号：US20250080108A1
公开(公告)日：2025-03-06
申请号：US18461648
申请日：2023-09-06
Applicant: Texas Instruments Incorporated
Inventor： Ahmed Essam Hashim , Kevin Scoones
IPC: H03K17/687 , H02M3/158 , H03K17/22
Abstract: Described embodiments include a power driver circuit having a first transistor coupled between an input voltage terminal and an intermediate terminal, and having a first control terminal. A second transistor is coupled between the intermediate terminal and a switching terminal, and has a second control terminal coupled to an output of a gate drive circuit. A first diode has a first anode coupled to the input voltage terminal, and a first cathode coupled to the first control terminal through a resistor. A first voltage clamp circuit is coupled between the first control terminal and the intermediate terminal. A second voltage clamp circuit is coupled between the first control terminal and the switching terminal. A second diode is coupled between the first control terminal and a voltage supply terminal.
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Patent Agency Ranking
公开(公告)号：US20240288890A1
公开(公告)日：2024-08-29
申请号：US18173144
申请日：2023-02-23
Applicant: Texas Instruments Incorporated
Inventor： Sowmya Sankaranarayanan , Orlando Lazaro , Kevin Scoones , Avinash Bhat
Abstract: In one example, an apparatus comprises a voltage reference circuit. The voltage reference circuit has a voltage reference terminal and includes a first circuit, a first semiconductor junction device, and a second semiconductor junction device coupled between the voltage reference terminal and a ground terminal. The first circuit is configured to generate a first voltage that increases with a temperature. The first semiconductor junction device is configured to generate a second voltage that decreases with the temperature. The second semiconductor junction device is configured to generate a third voltage that decreases with the temperature. The voltage reference circuit is configured to generate a fourth voltage between the voltage reference terminal and the ground terminal based on a sum of the first voltage and a combination of the second and third voltages.
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公开(公告)号：US11824391B2
公开(公告)日：2023-11-21
申请号：US16860914
申请日：2020-04-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Hakan Oner , Kevin Scoones
CPC classification number: H02J7/007 , H02J7/0029 , H02J7/0047 , H03F3/347 , H03F2200/228 , H03F2200/234 , H03F2200/267
Abstract: A device includes an amplifier having inverting and non-inverting inputs and an output. The device includes a capacitor coupled to a first node and to ground, a resistor coupled to the first node and the amplifier output, and a first switch coupled to the first node and a current sink, which is coupled to ground. The device includes AND gate having inputs and an output coupled to control terminal of first switch. The device includes a first comparator having non-inverting and inverting inputs and an output coupled to an AND gate input; a second comparator having a non-inverting input coupled to the amplifier output, an inverting input coupled to a transistor stack, and an output coupled to an AND gate input; and a second switch coupled to the transistor stack and to a current source, the second switch having a control terminal coupled to the first comparator output.
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公开(公告)号：US20230314484A1
公开(公告)日：2023-10-05
申请号：US18192759
申请日：2023-03-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Kevin Scoones , Vamsinath Peddireddy , Orlando Lazaro
CPC classification number: G01R19/0038 , H02M3/07 , H02M1/0009
Abstract: In one example, an apparatus comprises: a first transistor coupled between a power terminal and a switching terminal; a second transistor coupled between the power terminal and a first sense terminal; a third transistor coupled between the switching terminal and a ground terminal; a fourth transistor coupled between a second sense terminal and the ground terminal; a first variable current source coupled to the first sense terminal; a second variable current source coupled to the second sense terminal; a processing circuit having first, second, third, and fourth inputs and first and second outputs, the first input coupled to the switching terminal, the second input coupled to the first sense terminal, the third input coupled to the ground terminal, the fourth input coupled to the second sense terminal, the first output coupled to the first variable current source, and the second output coupled to the second variable current source.
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公开(公告)号：US10468988B2
公开(公告)日：2019-11-05
申请号：US16058859
申请日：2018-08-08
Applicant: Texas Instruments Incorporated
Inventor： Kevin Scoones , Orlando Lazaro , Alvaro Aguilar , Jeffrey Anthony Morroni , Reza Sharifi , Saurav Bandyopadhyay
Abstract: In a described example, an apparatus includes a first switch coupled between a terminal for receiving an input voltage and a top plate node, and having a first control terminal; a second switch coupled between the top plate node and a switching node, and having a second control terminal; a third switch coupled between the switching node and a bottom plate node and having a third control terminal; a fourth switch coupled between the bottom plate node and a ground terminal, and having a fourth control terminal; a flying capacitor coupled between the top plate node and the bottom plate node; a fifth switch coupled between the top plate node and an auxiliary node; a sixth switch coupled between the auxiliary node and the bottom plate node; and an auxiliary capacitor coupled between the auxiliary control terminal and a ground terminal.
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10.发明授权公开(公告)号：US10355609B2
公开(公告)日：2019-07-16
申请号：US15858648
申请日：2017-12-29
Applicant: Texas Instruments Incorporated
Inventor： Orlando Lazaro , Kevin Scoones , Jeffrey Anthony Morroni , Alvaro Aguilar , Reza Sharifi
Abstract: In described examples of methods and control circuitry to control a multi-level power conversion system with a flying capacitor, a power circuit regulates a regulator input voltage signal to provide a supply voltage signal to the control circuitry. A power switching circuit couples the regulator input to a first terminal of the flying capacitor in response to a second terminal of the flying capacitor being coupled to a reference voltage node in a given switching cycle, and couples the regulator input to the second terminal in response to the first terminal being coupled to an input node of the power conversion system in the given switching cycle.
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