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公开(公告)号：US10958151B2
公开(公告)日：2021-03-23
申请号：US16803084
申请日：2020-02-27
Applicant: NXP B.V.
Inventor： Mojtaba Ashourloo , Venkata Raghuram Namburi , Gerard Villar Piqué , John Pigott , Olivier Trescases , Hendrik Bergveld , Alaa Eldin Y El Sherif
Abstract: Disclosed are switched-mode DC-DC power converter modules, SMPC controllers, and distributed-control multiphase SMPC systems. The controller comprises: a reference clock; a synchronisation input configured to receive a first synchronisation signal; a synchronisation output configured to transmit a second synchronisation signal; a control unit configured to control the operation of the SMPC module with a phase determined by the reference clock signal or the first synchronisation signal; a delay line configured to generate the second synchronisation signal by adding a delay to the selected one of the first synchronisation signal and the reference clock signal; a fault detection terminal; a memory configured to store a datum corresponding to a number N of SMPCs in the system; and a delay calculation module configured to calculate the delay in dependence on the datum and the signal at the fault-detection terminal. Associated methods are also disclosed.
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公开(公告)号：US10784783B1
公开(公告)日：2020-09-22
申请号：US16737623
申请日：2020-01-08
Applicant: NXP B.V.
Inventor： Jitendra Prabhakar Harshey , Hendrik Johannes Bergveld , Olivier Trescases , Edevaldo Pereira da Silva Junior , Stefano Pietri , Oscar Igor Robles Palacios
Abstract: A DC-DC converter selectively operates in at least a first burst mode having at least one first-mode charge cycle with a first-mode charging phase followed by a first-mode discharging phase or a second burst mode having at least one second-mode charge cycle with a second-mode charging phase followed by a second-mode discharging phase. A first-mode charging phase is terminated when an inductor current flowing through the inductance reaches a first-mode peak-current threshold, and a first-mode discharging phase is terminated when the inductor current reaches a first-mode valley-current threshold. A second-mode charging phase is terminated when the inductor current reaches a second-mode peak-current threshold, wherein the second-mode peak-current threshold is different from the first-mode peak-current threshold, and the second-mode discharging phase is terminated when the inductor current reaches a second-mode valley-current threshold, wherein the second-mode valley-current threshold is different from the first-mode valley-current threshold.
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Patent Agency Ranking
公开(公告)号：US20200326384A1
公开(公告)日：2020-10-15
申请号：US16813849
申请日：2020-03-10
Applicant: NXP B.V.
Inventor： Mojtaba Ashourloo , Venkata Raghuram Namburi , Gerard Villar Piqué , John Pigott , Olivier Trescases , Hendrik Bergveld , Alaa Eldin Y. El Sherif
Abstract: There are disclosed fault detection circuits and methods for an N-to-1 Dickson topology hybrid DC-DC power converter. A short circuit fault detection circuit comprises: first and second measuring circuits configured to measure first and second voltages, Vsw1, Vsw2, at the switching node in the first and second state; first and second calculation circuits configured to calculate first and second absolute error voltage as an absolute difference of the respective first and second voltages in one operating cycle (Vsw1[n−1], Vsw2[n−1]) and in a next subsequent operating cycle (Vsw1[n], Vsw2[n]); and first and second fault circuits configured to provide first and second fault outputs indicative of a fault in response to the respective first or second absolute error voltage exceeding a short-circuit-trip level. Open circuit fault detection circuits and methods are also disclosed.
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公开(公告)号：US10720838B1
公开(公告)日：2020-07-21
申请号：US16431927
申请日：2019-06-05
Applicant: NXP B.V.
Inventor： Jitendra Prabhakar Harshey , Olivier Trescases , Edevaldo Pereira Da Silva Junior , Stefano Pietri , Jurgen Geerlings , Hendrik Johannes Bergveld
Abstract: Embodiments provide forced-burst voltage regulation for burst mode direct-current-to-direct-current (DC-DC) converters in integrated circuits. The DC-DC converter generates an output voltage and operates in a burst mode to raise the output voltage to a threshold voltage. A controller is coupled to the DC-DC converter. In operation, the DC-DC converter is configured to perform the burst mode based upon a low-voltage detection for the output voltage. The DC-DC converter is further configured to perform the burst mode when a force-burst command is asserted by the controller to the DC-DC converter regardless of a state for the low-voltage detection. For one embodiment, the force-burst command is asserted as a burst control signal from the controller to the DC-DC converter to generate a long quiet period for sensitive actions. For another embodiment, the force-burst command is asserted using enable and refresh control signals to facilitate low-power operation.
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公开(公告)号：US11293992B2
公开(公告)日：2022-04-05
申请号：US16813849
申请日：2020-03-10
Applicant: NXP B.V.
Inventor： Mojtaba Ashourloo , Venkata Raghuram Namburi , Gerard Villar Piqué , John Pigott , Olivier Trescases , Hendrik Bergveld , Alaa Eldin Y El Sherif
Abstract: There are disclosed fault detection circuits and methods for an N-to-1 Dickson topology hybrid DC-DC power converter. A short circuit fault detection circuit comprises: first and second measuring circuits configured to measure first and second voltages, Vsw1, Vsw2, at the switching node in the first and second state; first and second calculation circuits configured to calculate first and second absolute error voltage as an absolute difference of the respective first and second voltages in one operating cycle (Vsw1[n−1], Vsw2[n−1]) and in a next subsequent operating cycle (Vsw1[n], Vsw2[n]); and first and second fault circuits configured to provide first and second fault outputs indicative of a fault in response to the respective first or second absolute error voltage exceeding a short-circuit-trip level. Open circuit fault detection circuits and methods are also disclosed.
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公开(公告)号：US20200295649A1
公开(公告)日：2020-09-17
申请号：US16803084
申请日：2020-02-27
Applicant: NXP B.V.
Inventor： Mojtaba Ashourloo , Venkata Raghuram Namburi , Gerard Villar Piqué , John Pigott , Olivier Trescases , Hendrik Bergveld , Alaa Eldin Y. El Sherif
Abstract: Disclosed are switched-mode DC-DC power converter modules, SMPC controllers, and distributed-control multiphase SMPC systems. The controller comprises: a reference clock; a synchronisation input configured to receive a first synchronisation signal; a synchronisation output configured to transmit a second synchronisation signal; a control unit configured to control the operation of the SMPC module with a phase determined by the reference clock signal or the first synchronisation signal; a delay line configured to generate the second synchronisation signal by adding a delay to the selected one of the first synchronisation signal and the reference clock signal; a fault detection terminal; a memory configured to store a datum corresponding to a number N of SMPCs in the system; and a delay calculation module configured to calculate the delay in dependence on the datum and the signal at the fault-detection terminal. Associated methods are also disclosed.
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公开(公告)号：US09973083B1
公开(公告)日：2018-05-15
申请号：US15724867
申请日：2017-10-04
Applicant: NXP B.V.
Inventor： Matthias Rose , Hendrik Johannes Bergveld , Olivier Trescases , David King Wai Li
CPC classification number: H02M3/157 , H02M1/08 , H02M3/156 , H02M3/158 , H02M2001/0009
Abstract: A predictive controller for an inductive DC-DC converter comprising a switchable inductor is described. The predictive controller includes a DC-DC controller configured to generate a plurality of switching phases to control the inductor current in the switchable inductor, the duration of the switching phases being determined from at least one of a reference inductor current value and a reference output voltage value. The predictive controller includes a supervisory controller coupled to the DC-DC controller and configured to set a reference inductor current value dependent on an expected change in load current and/or voltage of a load configured to be connected to the load terminal. The expected change in load current and/or voltage is determined from a predetermined load profile.
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