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公开(公告)号：US10056819B1
公开(公告)日：2018-08-21
申请号：US15792208
申请日：2017-10-24
Applicant: Texas Instruments Incorporated
Inventor： Michael Couleur , Neil Gibson , Antonio Priego
CPC classification number: H02M1/00 , H02M3/04 , H02M3/156 , H02M2001/0012
Abstract: A timing regulation circuit includes a fixed and tunable timer. A current source generates a source current I1 proportional to an inductor voltage ΔV1 of a DC-DC converter during an energizing phase and a current source generates a sink current I2 proportional to inductor voltage ΔV2 during a de-energizing phase. The fixed timer controls a first switch in series with I1 or I2 and the tunable timer controls a balancing switch in series with the other current. I1 or I2 is coupled by the first switch and the other current is coupled by the balancing switch to a common capacitor that provides a regulation voltage to the tunable timer which outputs a regulated duration (Tregulated) for an energizing or de-energizing phase. When Tregulated closes the balancing switch the common capacitor provides a predicted current returning inductor current to a starting value when all phases finish for providing a volt-second balance.
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公开(公告)号：US12261529B2
公开(公告)日：2025-03-25
申请号：US17955950
申请日：2022-09-29
Applicant: Texas Instruments Incorporated
Inventor： Antonio Priego , Gerhard Thiele , Erich-Johann Bayer
IPC: H02M3/158 , H02M1/00 , H03F3/345 , H03K17/06 , H03K17/687 , H03K19/173
Abstract: In a circuit for DC-DC voltage converters, an amplifier has first and second inputs coupled to a reference voltage terminal and an output voltage terminal, respectively. A comparator has first and second inputs coupled to an amplifier output and a switching terminal, respectively. A logic circuit has inputs coupled to the comparator output and a clock terminal. A driver circuit has first and second inputs coupled to first and second logic outputs, respectively. A first transistor having a first control terminal coupled to the first driver output is coupled between a supply voltage terminal and the switching terminal. A second transistor is coupled between the switching terminal and a ground terminal, and has a second control terminal coupled to the second driver output. A threshold detection circuit is configured to provide a threshold signal responsive to a current through the second transistor crossing a current threshold.
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公开(公告)号：US10601412B2
公开(公告)日：2020-03-24
申请号：US15975858
申请日：2018-05-10
Applicant: Texas Instruments Incorporated
Inventor： Michael Couleur , Neil Gibson , Antonio Priego
IPC: H03K7/06 , H02M3/07 , H03L7/081 , H02M3/156 , H03L7/089 , H03K3/033 , H03L5/02 , H03K4/52 , H02M1/00
Abstract: Disclosed examples include self-biased DLL circuits to generate a bias current signal proportional to a repetition frequency of a first signal representing continuous switching or discontinued switching operation of the DC-DC converter. The DLL circuit includes a monostable multivibrator to provide a pulse output signal in response to an edge of the first signal with a pulse duration set by a control current signal, a phase detector to provide output signals according to a phase difference between an edge of the pulse output signal and the first signal, and an output circuit to provide an output signal according to the phase detector output signals and according to an offset signal, to provide the bias current signal according to the output signal, and to provide the control current signal according to the output signal.
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公开(公告)号：US10340803B2
公开(公告)日：2019-07-02
申请号：US15135987
申请日：2016-04-22
Applicant: Texas Instruments Incorporated
Inventor： Neil Gibson , Michael Couleur , Antonio Priego , Stefan Herzer , Syed Wasif Mehdi
Abstract: A DC-to-DC voltage converter includes a converter input for receiving a DC voltage. A first switch is coupled between the input and a first node. A second switch is coupled between the first node and a ground. An inductor is coupled between the first node and a converter output. A capacitor is coupled between the converter output and ground. An output voltage synthesizer is coupled to the converter input and the converter output for synthesizing the voltage at the first node and for generating a control signal for at least one of the first switch and the second switch in response to the voltages at the converter input and the converter output.
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公开(公告)号：US10069416B2
公开(公告)日：2018-09-04
申请号：US15377075
申请日：2016-12-13
Applicant: Texas Instruments Incorporated
Inventor： Neil Gibson , Antonio Priego , Erich Bayer , Joerg Kirchner , Michael Lueders , Stefan Herzer , Michael Couleur
CPC classification number: H02M3/158 , H02M1/08 , H02M3/1582 , H02M2001/0016
Abstract: A controller for a DC-DC converter includes a state machine and a plurality of drivers for controlling switches in the DC-DC converter, where each state in the state machine determines a state of the drivers, and a plurality of timers, where each state in the state machine, other than a passive state, has an associated timer for the state of the drivers.
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Patent Agency Ranking
公开(公告)号：US10009019B2
公开(公告)日：2018-06-26
申请号：US15282957
申请日：2016-09-30
Applicant: Texas Instruments Incorporated
Inventor： Michael Couleur , Neil Gibson , Antonio Priego
CPC classification number: H03K7/06 , H02M3/07 , H02M3/156 , H02M2001/0006 , H02M2001/0035 , H02M2001/0048 , H03K3/033 , H03K4/52 , H03L5/02 , H03L7/0812 , H03L7/089 , Y02B70/1491 , Y02B70/16
Abstract: Disclosed examples include self-biased DLL circuits to generate a bias current signal proportional to a repetition frequency of a first signal representing continuous switching or discontinued switching operation of the DC-DC converter. The DLL circuit includes a monostable multivibrator to provide a pulse output signal in response to an edge of the first signal with a pulse duration set by a control current signal, a phase detector to provide output signals according to a phase difference between an edge of the pulse output signal and the first signal, and an output circuit to provide an output signal according to the phase detector output signals and according to an offset signal, to provide the bias current signal according to the output signal, and to provide the control current signal according to the output signal.
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公开(公告)号：US11784568B2
公开(公告)日：2023-10-10
申请号：US16585168
申请日：2019-09-27
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Antonio Priego , Gerhard Thiele , Manuel Wiersch , Johann Erich Bayer
CPC classification number: H02M3/1582 , H02M1/0061 , H02M1/0003
Abstract: A switching converter circuit includes a voltage regulation loop configured to provide an output voltage (VOUT) based on an input voltage (VIN). The switching converter circuit also includes a 100% mode circuitry coupled to the voltage regulation loop, wherein the 100% mode circuitry is configured to apply an offset to VOUT in response to detecting that VIN is approaching VOUT.
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公开(公告)号：US11616439B2
公开(公告)日：2023-03-28
申请号：US16590021
申请日：2019-10-01
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Manuel Wiersch , Gerhard Thiele , Antonio Priego , Johann Erich Bayer
Abstract: An electrical system includes: 1) a buck converter; 2) a battery coupled to an input of the buck converter; and 3) a load coupled to an output of the buck converter. The buck converter includes a high-side switch, a low-side switch, and regulation loop circuitry coupled to the high-side switch and the low-side switch. The regulation loop circuitry includes: 1) a main comparator; 2) a bias current source coupled to the main comparator and configured to provide a bias current to the main comparator; and 3) a dynamic biasing circuit coupled to the main comparator and configured to add a supplemental bias current to the bias current in 100% mode of the buck converter. The supplemental bias current varies depending on an input voltage (VIN) and an output voltage (VOUT) of the buck converter.
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公开(公告)号：US11218076B2
公开(公告)日：2022-01-04
申请号：US16558079
申请日：2019-08-31
Applicant: Texas Instruments Incorporated
Inventor： Antonio Priego , Johann Erich Bayer , Gerhard Thiele
Abstract: A switching converter circuit includes a hysteretic comparator with a reference voltage (VREF) node and a feedback node. The switching converter circuit also includes a switchable error amplifier circuit coupled to the feedback node of the hysteretic comparator. The switchable error amplifier circuit includes an error amplifier that is coupled to the feedback node during a power-save mode and that is decoupled from the feedback node during a deep power-save mode initiated in response to a duration of the power-save mode being greater than a time threshold.
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公开(公告)号：US10992229B2
公开(公告)日：2021-04-27
申请号：US16655876
申请日：2019-10-17
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Gerhard Thiele , Manuel Wiersch , Antonio Priego , Johann Erich Bayer , Stefan Herzer
Abstract: An electrical system includes: 1) a buck converter; 2) a battery coupled to an input of the buck converter; and 3) a load coupled to an output of the buck converter. The buck converter includes a high-side switch, a low-side switch, and regulation loop circuitry coupled to the high-side switch and the low-side switch. The regulation loop circuitry includes a comparator with preamplifier gain adjustment circuitry configured to adjust a preamplifier gain of the comparator based on an overdrive voltage.
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